EP1012409B1 - Device and method for excavating and redepositing earth - Google Patents
Device and method for excavating and redepositing earth Download PDFInfo
- Publication number
- EP1012409B1 EP1012409B1 EP98929295A EP98929295A EP1012409B1 EP 1012409 B1 EP1012409 B1 EP 1012409B1 EP 98929295 A EP98929295 A EP 98929295A EP 98929295 A EP98929295 A EP 98929295A EP 1012409 B1 EP1012409 B1 EP 1012409B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- milling
- excavator bucket
- mixing
- mixing rotor
- pipes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000003801 milling Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims description 41
- 239000011230 binding agent Substances 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 238000009412 basement excavation Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 9
- 239000002699 waste material Substances 0.000 description 4
- 244000089486 Phragmites australis subsp australis Species 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/962—Mounting of implements directly on tools already attached to the machine
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/025—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with scraper-buckets, dippers or shovels
Definitions
- the invention relates to a device and a method for excavating and filling in soil, in particular for laying pipes in trenches according to the generic term of claims 1, 2 and 14.
- a device is already known from document WO-A-9513432.
- the one swiveling When digging trenches, especially for pipe laying, excavator vehicles are used, the one swiveling have stored excavator bucket at the end of a boom.
- the boom usually consists of several articulated interconnected boom arms, one of an operator or specified by a controller Allow bucket movement of the excavator bucket.
- the Trenches required for pipe laying are approx. 3m deep and approx.1.20 m wide.
- the invention is therefore based on the object of a device and a method of excavation and refilling of soil to indicate with which a faster work progress while saving raw materials and waste reduction is enabled.
- the invention advantageously provides that at the Excavator bucket a milling / mixing rotor is stored.
- the Arrangement of the milling / mixing rotor on the excavator bucket allows different in an advantageous manner Carry out operations with the same construction vehicle.
- the excavator bucket is initially used in a conventional manner Excavation and filling of soil can be used. With help of the milling / mixing rotor, the soil can be separated Milling, loosening and crushing, so that the removed soil is reusable.
- the volume enclosed by the excavator bucket is in a receiving room for the excavation and a mixing room for divided the milling / mixing rotor.
- the mixing room surrounds the Milling / mixing rotor and is not with the recording space Excavator bucket connected.
- a spray device can liquid binder in the Spray the mixing area of the excavator bucket.
- the excavator bucket can also be a distribution device for powdered binders.
- the excavator bucket preferably has a storage room for powdered binder.
- This pantry is, for example, in the rear area Excavator bucket arranged.
- the powdered binder can be taken from the storage room With the help of a rotary valve, preferably is arranged behind the milling / mixing rotor.
- the rotary valve runs parallel to the milling / mixing rotor.
- a control can move the excavator buckets in Dependence of the position of the boom arms under setting control a predetermined milling depth.
- the milling / mixing rotor is in the bucket of one partially covered circular hood, which limits the mixing space in the excavator bucket.
- the Milling / mixing rotor is in the side of the cover boundary side walls of the excavator bucket.
- the method according to the invention looks more advantageous Way before that after excavating a first trench section removing the excavated material, creating an overlay, as well as the introduction and embedding of Pipes in a grit and gravel layer in the first trench section in a conventional manner, the following Trench section in several layers initially with one predetermined milling depth while loosening and mixing up the milled material, with addition of binders. That prepared in this way Material is excavated and used as filling material placed on the pipes in front of it. at Construction begins with a first in the conventional manner Trench piece for laying approx. 1 to 3 pipes and after prepared for laying the pipes for filling.
- the subsequent trench section is not conventional Excavated with the excavator shovel, but with the help of a milling / mixing rotor processed and in layers along a defined path.
- the method according to the invention has the decisive one Advantage that the excavated soil by processing and due to the addition of binder as filler can be used, making the complete removal excavation, as well as the delivery of regulations Filling material is not required. Landfill costs, as well as the Costs for the filling material are saved and ultimately also the cost of removing the soil and the supply of the filling material.
- the boom 6 has several articulated to each other Cantilever arms 8,10,12 on the complex movements allow the excavator bucket 16.
- the excavator bucket 16 has two joints 18, 20, which are connected via control arms 14, 15 pivoting of the excavator bucket 16 relative to the Enable boom arm 12.
- the excavator vehicle is at ground level above one of the Soil 44 excavated trench positioned.
- Pipes 46 are deposited in the trench, the work progress each in sections in trench sections he follows. There can be about 1 to 3 pipes in each trench section 46 are laid in a row, the excavated Soil 44 from the trench section upstream of the pipes 46 56 as filling material for the pipes 46 contained Trench section 52 is used.
- a cross section through the trench with pipe 46 installed 4 can be seen.
- a bottom or support layer for the tubes 46 created in soil 44 by making the bottom of the trench horizontal is withdrawn, if necessary with the provision of a gutter for inserting the pipes.
- the control of the trajectory the excavator bucket is preferably carried out with the help of a Excavators leveling system.
- a split layer and / or a gravel layer 48 with a grain ⁇ 20 mm to fill the tubes 46 up to about Embed half of their diameter.
- Above the Filler layer 50 can be a gravel layer 54 and an asphalt layer 58 is provided as the uppermost layer his.
- Fig. 1 shows the milling of the tubes 46 in the trench section 52 upstream trench section 56 with the help a milling / mixing rotor mounted on the excavator bucket 16 22.
- the milling / mixing rotor 22 on the underside of the excavator bucket 16 in the side walls 28 of the excavator bucket 16 stored.
- a cover 23 surrounds the excavator bucket 16 facing parts of the milling / mixing rotor 22 and surrounds a mixing space 26 in which the milled in layers Material of the soil 44 loosened and crushed becomes.
- chisel tools 25 e.g. Attack cutting tools, Mistake.
- paddles or knives can also be arranged on the outer surface of the milling / mixing rotor 22.
- the milled and mixed in the mixing room 26 and crushed material is added with a liquid or powdered binder from the milling / mixing rotor 22 deposited again and can in a subsequent excavation process, as shown in Fig. 2, excavated after processing and, as shown in broken lines in FIG. 2, in the trench section 52 on the tubes 46 as filler material 50 are filed.
- the excavator vehicle can due to the width of its lane also in the direction of the first trench section 52 are moved to fill the material 50 to unload.
- the excavator bucket 16 has one in the front area Recording room 24 for excavation and behind the recording room 24 a storage space 38 for powdered binder on from the receiving space 24 through a partition 37 is separated.
- the storage space 38 can be on its top via a flap 39 with powdered binder be filled.
- This storage space 38 is dimensioned so that it powdered binder for at least one trench section can be included.
- the powdery The binder is made using the milling / mixing rotor 22 intensive with the loosened and shredded material mixed.
- liquid binder supplied to the excavator bucket 16 be, for example, three parallel to Milling / mixing rotor 22 extending spray ramps 32 immediately is injected into the mixing chamber 26.
- the addition of powder and / or liquid binder the preparation of the soil in such a way that Soil as filling material in the ditch section in front of it 52 can be used.
- the liquid binder is processed in a suspension mixer and over the Feed line 36 supplied to the excavator bucket 16.
- the storage space 38 for powdered binder can also, for example, via a pneumatic feed line be filled up intermittently with binder.
- the dosage of the binder addition, solid or liquid, takes place with the help of the control.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Soil Working Implements (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
- Road Repair (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung sowie ein Verfahren
zum Ausheben und Auffüllen von Erdreich, insbesondere
zur Verlegung von Rohren in Gräben nach dem Oberbegriff
der Ansprüche 1, 2 und 14. Eine derartige Vorrichtung ist
bereits aus dem Dokument WO-A-9513432 bekannt.The invention relates to a device and a method
for excavating and filling in soil, in particular
for laying pipes in trenches according to the generic term
of
Beim Ausheben von Gräben, insbesondere zur Rohrverlegung, werden Baggerfahrzeuge verwendet, die eine schwenkbar gelagerte Baggerschaufel am Ende eines Auslegers aufweisen. Der Ausleger besteht meistens aus mehreren gelenkig untereinander verbundenen Auslegerarmen, die eine von einer Bedienungsperson oder von einer Steuerung vorgegebene Schaufelbewegung der Baggerschaufel ermöglichen. Die zur Rohrverlegung benötigten Gräben sind ca. 3m tief und ca. 1,20 m breit.When digging trenches, especially for pipe laying, excavator vehicles are used, the one swiveling have stored excavator bucket at the end of a boom. The boom usually consists of several articulated interconnected boom arms, one of an operator or specified by a controller Allow bucket movement of the excavator bucket. The Trenches required for pipe laying are approx. 3m deep and approx.1.20 m wide.
Bei der herkömmlichen Rohrverlegung wird zunächst der Graben ausgehoben und das Aushubmaterial in einer Deponie entsorgt. Danach wurde eine Auflageschicht im Erdreich für die Rohre erstellt und die Rohre mindestens bis zur Hälfte ihres Durchmessers in einer Splitt- oder Kiesschicht eingebettet. Verdichtungsfähiges Füllmaterial wird angeliefert, in den Graben eingebracht und verdichtet. Der Graben wird anschließend mit Schotter aufgefüllt und ggf. mit Asphalt überbaut.With conventional pipe laying, the Digging and digging the excavated material in a landfill disposed of. After that, an overlay was laid in the ground for created the pipes and the pipes at least up to half their diameter embedded in a grit or gravel layer. Compressible filling material is delivered in the Digging and compacting. The trench is then filled up with gravel and, if necessary, with asphalt overbuilt.
Diese Vorgehensweise hat mehrere Nachteile. Der Abtransport des Bodenaushubs und die Einlagerung des Aushubmaterials in einer Deponie verursacht Kosten in etwa von DM 40/m3. Unter ökologischen Gesichtspunkten ist auch die Entsorgung des Erdreichs unnötig. Es entstehen außerdem hohe Kosten für das angelieferte Füllmaterial. Desweiteren ist eine aufwendige logistische Planung für den Abtransport und die Anlieferung der Materialien mit Lastkraftwagen erforderlich. Die Baustelle muß weiträumig abgesperrt sein, um den LKW-Verkehr zu sichern, so daß keine kleine Wanderbaustelle eingerichtet werden kann. Schließlich ist auch der Baustellenfortschritt in hohem Maße verkehrsabhängig und von dem rechtzeitigen fortlaufenden Abtransport des Abfalls und der rechtzeitigen fortlaufenden Anlieferung der Füllmaterialen abhängig.This approach has several disadvantages. The removal of the excavated soil and the storage of the excavated material in a landfill costs approximately DM 40 / m 3 . From an ecological point of view, the disposal of the soil is also unnecessary. There are also high costs for the filling material supplied. Furthermore, complex logistical planning is required for the removal and delivery of the materials by truck. The construction site must be cordoned off in order to secure truck traffic so that no small traveling construction site can be set up. Finally, the progress of the construction site is also largely dependent on traffic and on the timely, continuous removal of the waste and the timely, continuous delivery of the filling materials.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung, sowie ein Verfahren zum Ausheben und Auffüllen von Erdreich anzugeben, mit dem ein schnellerer Arbeitsfortschritt unter gleichzeitiger Einsparung von Rohmaterialien und Verringerung von Abfällen ermöglicht wird.The invention is therefore based on the object of a device and a method of excavation and refilling of soil to indicate with which a faster work progress while saving raw materials and waste reduction is enabled.
Zur Lösung dieser Aufgabe dienen die Merkmale der Ansprüche
1, 2 und 14.The features of the claims serve to solve this
Die Erfindung sieht in vorteilhafter Weise vor, daß an der Baggerschaufel ein Fräs-/Mischrotor gelagert ist. Die Anordnung des Fräs-/Mischrotors an der Baggerschaufel ermöglicht es in vorteilhafter Weise unterschiedliche Arbeitsvorgänge mit dem gleichen Baufahrzeug auszuführen. Die Baggerschaufel ist zunächst in herkömmlicher Weise zum Ausheben und Auffüllen von Erdreich verwendbar. Mit Hilfe des Fräs-/Mischrotors kann das Erdreich in einem separaten Arbeitsgang gefräst, aufgelockert und zerkleinert werden, so daß das abgetragene Erdreich wiederverwendbar ist.The invention advantageously provides that at the Excavator bucket a milling / mixing rotor is stored. The Arrangement of the milling / mixing rotor on the excavator bucket allows different in an advantageous manner Carry out operations with the same construction vehicle. The excavator bucket is initially used in a conventional manner Excavation and filling of soil can be used. With help of the milling / mixing rotor, the soil can be separated Milling, loosening and crushing, so that the removed soil is reusable.
Das von der Baggerschaufel umschlossene Volumen ist in einen Aufnahmeraum für den Aushub und einen Mischraum für den Fräs-/Mischrotor aufgeteilt. Der Mischraum umgibt den Fräs-/Mischrotor und ist nicht mit dem Aufnahmeraum der Baggerschaufel verbunden.The volume enclosed by the excavator bucket is in a receiving room for the excavation and a mixing room for divided the milling / mixing rotor. The mixing room surrounds the Milling / mixing rotor and is not with the recording space Excavator bucket connected.
Eine Sprüheinrichtung kann flüssiges Bindemittel in den Mischraum der Baggerschaufel einsprühen.A spray device can liquid binder in the Spray the mixing area of the excavator bucket.
Auf diese Weise wird beim Abfräsen einer Schicht gleichzeitig Bindemittel zugegeben und dieses in das aufgelockerte und zerkleinerte Material eingemischt. Das aufbereitete Material kann dann als Füllmaterial verwendet werden. Die Baggerschaufel kann desweiteren eine Verteileinrichtung für pulverförmiges Bindemittel aufweisen.In this way, when milling a layer at the same time Binder added and this into the loosened and shredded material mixed in. The processed Material can then be used as filler become. The excavator bucket can also be a distribution device for powdered binders.
Hierzu weist die Baggerschaufel vorzugsweise einen Vorratsraum für pulverförmiges Bindemittel auf. Dieser Vorratsraum ist beispielsweise im hinteren Bereich der Baggerschaufel angeordnet.For this purpose, the excavator bucket preferably has a storage room for powdered binder. This pantry is, for example, in the rear area Excavator bucket arranged.
Das pulverförmige Bindemittel kann aus dem Vorratsraum mit Hilfe einer Zellradschleuse ausgegeben werden, die vorzugsweise hinter dem Fräs-/Mischrotor angeordnet ist. Die Zellradschleuse verläuft dabei achsparallel zu dem Fräs-/Mischrotor. The powdered binder can be taken from the storage room With the help of a rotary valve, preferably is arranged behind the milling / mixing rotor. The The rotary valve runs parallel to the milling / mixing rotor.
Eine Steuerung kann den Verfahrweg der Baggerschaufeln in Abhängigkeit der Position der Auslegerarme unter Einstellung einer vorgegebenen Frästiefe steuern.A control can move the excavator buckets in Dependence of the position of the boom arms under setting control a predetermined milling depth.
Auf diese Weise wird die Bahnkurve der Baggerschaufel exakt mit konstanter Frästiefe eingehalten, ohne daß die Bedienungsperson komplizierte Steuerungsbewegungen ausführen muß.In this way, the trajectory of the excavator bucket exactly maintained with constant milling depth, without the Perform complicated control movements got to.
Der Fräs-/Mischrotor ist in der Baggerschaufel von einer kreisförmig gebogenen Abdeckhaube teilweise umschlossen, die den Mischraum in der Baggerschaufel begrenzt. Der Fräs-/Mischrotor ist dabei in den die Abdeckhaube seitlich begrenzenden Seitenwänden der Baggerschaufel gelagert.The milling / mixing rotor is in the bucket of one partially covered circular hood, which limits the mixing space in the excavator bucket. The Milling / mixing rotor is in the side of the cover boundary side walls of the excavator bucket.
Das erfindungsgemäße Verfahren sieht in vorteilhafter Weise vor, daß nach dem Ausheben eines ersten Grabenabschnitts unter Entfernung des Aushubmaterials, Erstellen einer Auflageschicht, sowie Einbringen und Einbetten von Rohren in eine Splitt- und Kiesschicht in dem ersten Grabenabschnitt in herkömmlicher Weise, der nachfolgende Grabenabschnitt in mehreren Schichten zunächst mit einer vorgegebenen Frästiefe unter gleichzeitiger Auflockerung und Aufmischung des abgefrästen Materials, unter Zugabe von Bindemitteln, gefräst wird. Das auf diese Weise aufbereitete Material wird ausgehoben und als Füllmaterial auf die unmittelbar davor liegenden Rohre abgelegt. Bei Baubeginn wird zunächst in herkömmlicher Weise ein erstes Grabenstück zur Verlegung von ca. 1 bis 3 Rohren und nach dem Verlegen der Rohre zum Verfüllen vorbereitet. Der nachfolgende Grabenabschnitt wird nicht in herkömmlicher Weise mit der Baggerschaufel ausgehoben, sondern mit Hilfe eines Fräs-/Mischrotors bearbeitet und schichtweise entlang einer festgelegten Bahn abgearbeitet. Beim Abfräsen, Auflockern und Zerkleinern der Materialschicht, wird Bindemittel zugegeben und in die aufgelockerte Schicht eingemischt. Dann erst wird die zuvor aufgelockerte und aufbereitete Schicht mit derselben Baggerschaufel in Schaufelstellung ausgehoben und auf die unmittelbar davor liegenden Rohre als Füllmaterial abgeladen. Wenn das Füllmaterial für die im ersten Grabenabschnitt liegenden Rohre vollständig abgeladen ist, ist ein entsprechender zweiter vorgelagerter Grabenabschnitt freigelegt, in dem wiederum 1 bis 3 Rohre abgelegt werden können, so daß im folgenden Arbeitsabschnitt erneut aufbereitetes Erdreich als Füllmaterial verwendet werden kann.The method according to the invention looks more advantageous Way before that after excavating a first trench section removing the excavated material, creating an overlay, as well as the introduction and embedding of Pipes in a grit and gravel layer in the first trench section in a conventional manner, the following Trench section in several layers initially with one predetermined milling depth while loosening and mixing up the milled material, with addition of binders. That prepared in this way Material is excavated and used as filling material placed on the pipes in front of it. at Construction begins with a first in the conventional manner Trench piece for laying approx. 1 to 3 pipes and after prepared for laying the pipes for filling. The subsequent trench section is not conventional Excavated with the excavator shovel, but with the help of a milling / mixing rotor processed and in layers along a defined path. When milling, Loosening and crushing the material layer becomes a binder added and mixed into the loosened layer. Only then is the previously loosened up and processed Layer with the same excavator bucket in bucket position dug up and onto the ones immediately in front Unloaded pipes as filling material. If the filler for the pipes in the first trench section is completely unloaded, is a corresponding second upstream trench section exposed, in turn 1 to 3 pipes can be stored, so that in the following Working section reprocessed soil as filling material can be used.
Das erfindungsgemäße Verfahren hat den entscheidenden Vorteil, daß das ausgehobene Erdreich durch Aufbereitung und aufgrund der Zugabe von Bindemittel als Füllmaterial verwendet werden kann, wodurch der vollständige Abtransport des Aushubes, sowie das Anliefern von vorschriftsmäßigen Füllmaterial entfällt. Deponie-Kosten, sowie die Kosten für das Füllmaterial werden eingespart und letztlich auch die Kosten für den Abtransport des Erdreichs und die Zulieferung des Füllmaterials.The method according to the invention has the decisive one Advantage that the excavated soil by processing and due to the addition of binder as filler can be used, making the complete removal excavation, as well as the delivery of regulations Filling material is not required. Landfill costs, as well as the Costs for the filling material are saved and ultimately also the cost of removing the soil and the supply of the filling material.
Aufgrund der entfallenden Transporte ist ein kontinuierlicher Arbeitsfortschritt möglich, so daß die Bauzeit verringert wird und die Baustelle verkleinert werden kann. Schließlich wird auch der Baustellenverkehr erheblich reduziert, da lediglich das Material für Splitt-, Kiesund Schotterschichten zugeliefert und geringe Mengen an Abfallmaterial entsorgt werden müssen.Due to the omitted transports is a continuous one Work progress possible, so the construction time is reduced and the construction site can be downsized. Finally, construction site traffic also becomes significant reduced because only the material for grit, gravel and Delivered gravel layers and small amounts of Waste material must be disposed of.
Im folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert. The following is a reference to the drawings Embodiment of the invention explained in more detail.
Es zeigen:
- Fig. 1
- das Abfräsen des Erdreiches in einem dem Rohr vorgelagerten Bereich,
- Fig. 2
- das Ausheben des aufgearbeiteten Füllmaterials,
- Fig. 3
- eine Seitenansicht der Baggerschaufel mit integriertem Fräs-/Mischrotor, und
- Fig. 4
- einen Querschnitt durch einen Graben, in dem ein Rohr verlegt ist.
- Fig. 1
- milling the soil in an area upstream of the pipe,
- Fig. 2
- excavating the refilled filler material,
- Fig. 3
- a side view of the excavator bucket with integrated milling / mixing rotor, and
- Fig. 4
- a cross section through a trench in which a pipe is laid.
Ein Baggerfahrzeug mit einem Fahrwerk 2, das einen Maschinenrahmen
4 mit einem Aufbau trägt, kann mit Hilfe einer
Steuerung eine an dem freien Ende eines Auslegers 6 angeordnete
Baggerschaufel 16 entlang einer Bahnkurve bewegen.
Der Ausleger 6 weist mehrere gelenkig untereinander verbundene
Auslegerarme 8,10,12 auf, die komplexe Bewegungen
der Baggerschaufel 16 zulassen. Die Baggerschaufel 16
weist zwei Gelenke 18,20 auf, die über Lenkerarme 14,15
ein Verschwenken der Baggerschaufel 16 relativ zu dem
Auslegerarm 12 ermöglichen.An excavator vehicle with a
Das Baggerfahrzeug ist ebenerdig oberhalb eines aus dem
Erdreich 44 auszuhebenden Grabens positioniert.The excavator vehicle is at ground level above one of the
In dem Graben werden Rohre 46 abgelegt, wobei der Arbeitsfortschritt
jeweils abschnittsweise in Grabenabschnitten
erfolgt. In jedem Grabenabschnitt können ca. 1 bis 3 Rohre
46 hintereinander verlegt werden, wobei das ausgehobene
Erdreich 44 aus dem den Rohren 46 vorgelagerten Gräbenabschnitt
56 als Füllmaterial für den die Rohre 46 enthaltenen
Grabenabschnitt 52 verwendet wird.
Ein Querschnitt durch den Graben mit eingebautem Rohr 46
ist Fig. 4 zu entnehmen. Nach dem Aushub des Grabens wird
zunächst eine Boden- oder Auflageschicht für die Rohre 46
im Erdreich 44 erstellt, indem der Boden des Grabens horizontal
abgezogen wird, ggf. unter Vorsehung einer Rinne
zum Einlegen der Rohre. Die Steuerung der Bewegungsbahn
der Baggerschaufel erfolgt vorzugsweise mit Hilfe eines
Baggernivellierungssystems. Anschließend wird eine Splittschicht
und/oder eine Kiesschicht 48 mit einer Körnung
< 20 mm aufgeschüttet, um die Rohre 46 bis etwa zur
Hälfte ihres Durchmessers einzubetten. Auf diese Splittoder
Kiesschicht 48 und den gegenüber der Splitt- und
Kiesschicht 48 überstehenden Teil der Rohre 46 wird Füllmaterial
50 aufgefüllt, das ggf. verdichtet wird. Über der
Füllmaterialschicht 50 kann eine Schotterschicht 54 und
als oberste Schicht eine Asphaltschicht 58 vorgesehen
sein.A cross section through the trench with
Fig. 1 zeigt das Abfräsen eines den Rohren 46 im Grabenabschnitt
52 vorgelagerten Grabenabschnitt 56 mit Hilfe
eines an der Baggerschaufel 16 gelagerten Fräs-/Mischrotors
22. Bei dem in Fig. 1 gezeigten Ausführungsbeispiel ist
der Fräs-/Mischrotor 22 an der Unterseite der Baggerschaufel
16 in den Seitenwänden 28 der Baggerschaufel 16
gelagert. Eine Abdeckhaube 23 umgibt den der Baggerschaufel
16 zugewandten Teile des Fräs-/Mischrotors 22 und
umgibt einen Mischraum 26, in dem das schichtweise abgefräste
Material des Erdreichs 44 aufgelockert und zerkleinert
wird.Fig. 1 shows the milling of the
Wie am besten aus Fig. 3 ersichtlich, ist der Fräs-/Mischrotor
22 mit Meißelwerkzeugen 25, z.B. Rundschaftmeißel,
versehen. Alternativ können auf der Mantelfläche des Fräs-/Mischrotors
22 auch Paddel oder Messer angeordnet sein. As best seen in Fig. 3, is the milling / mixing
Das abgefräste und in dem Mischraum 26 vermischte und
zerkleinerte Material wird unter Zugabe eines flüssigen
oder pulverförmigen Bindemittels von dem Fräs-/Mischrotor
22 wieder abgelegt und kann in einem nachfolgenden Aushubvorgang,
wie in Fig. 2 gezeigt, nach Aufbereitung ausgehoben
werden und, wie in Fig. 2 gestrichelt dargestellt,
in dem Grabenabschnitt 52 auf die Rohre 46 als Füllmaterial
50 abgelegt werden. Dabei kann das Baggerfahrzeug
aufgrund der Breite seiner Fahrspur auch in Richtung des
ersten Grabenabschnitts 52 verfahren werden, um das Füllmaterial
50 abzuladen.The milled and mixed in the
Die Baggerschaufel 16 weist im vorderen Bereich einen
Aufnahmeraum 24 für den Aushub und hinter dem Aufnahmeraum
24 einen Vorratsraum 38 für pulverförmiges Bindemittel
auf, der von dem Aufnahmeraum 24 durch eine Trennwand 37
abgetrennt ist. Der Vorratsraum 38 kann auf seiner Oberseite
über eine Klappe 39 mit pulverförmigem Bindemittel
befüllt werden.The
Dieser Vorratsraum 38 ist dabei so bemessen, daß darin
pulverförmiges Bindemittel für mindestens einen Grabenabschnitt
aufgenommen werden kann. Eine Zellradschleuse 42
mit paralleler Achsausrichtung zum Fräs-/Mischrotor 22 ist
seitlich neben der Abdeckhaube 23 angeordnet und fördern
das pulverförmige Bindemittel aus dem Vorratsraum 38 in
die abgetragene Schicht des Grabens. Das pulverförmige
Bindemittel wird dabei mit Hilfe des Fräs-Mischrotors 22
intensiv mit dem aufgelockerten und zerkleinerten Material
vermischt. Gleichzeitig kann mit Hilfe einer Zuführleitung
36 flüssiges Bindemittel der Baggerschaufel 16 zugeführt
werden, das über beispielsweise drei sich parallel zum
Fräs-/Mischrotor 22 erstreckenden Sprührampen 32 unmittelbar
in den Mischraum 26 eingespritzt wird. Die Zugabe von
pulverförmigem und/oder flüssigem Bindemittel ermöglicht
die Aufbereitung des Erdreiches in einer Weise, daß das
Erdreich als Füllmaterial in dem davor liegenden Grabenabschnitt
52 verwendet werden kann. Das flüssige Bindemittel
wird in einem Suspensionsmischer aufbereitet und über die
Zuführleitung 36 der Baggerschaufel 16 zugeführt.This storage space 38 is dimensioned so that it
powdered binder for at least one trench section
can be included. A
Der Vorratsraum 38 für pulverförmiges Bindemittel kann auch beispielsweise über eine pneumatische Zuführleitung mit Bindemittel intermittierend aufgefüllt werden.The storage space 38 for powdered binder can also, for example, via a pneumatic feed line be filled up intermittently with binder.
Die Dosierung der Bindemittelzugabe, fest oder flüssig, erfolgt mit Hilfe der Steuerung.The dosage of the binder addition, solid or liquid, takes place with the help of the control.
Besonders vorteilhaft ist, daß zum Ausheben und Wiederauffüllen
des Grabens kein Wechsel des Baufahrzeuges erforderlich
ist, da die Baggerschaufel einen integrierten
Fräs-/Mischrotor 22 aufweist. Auf diese Weise ist der
Zeit- und Materialaufwand in erheblichem Umfang reduziert,
wobei gleichzeitig das Abfallvolumen auf einen geringen
Restanteil reduziert wird. Der Zukauf von Füllmaterial
einschließlich des aufwendigen Transportes des Füllmaterials
entfällt.It is particularly advantageous that for excavation and refilling
No need to change the construction vehicle of the trench
is because the excavator bucket has an integrated
Milling /
Claims (17)
- Device for excavating and backfilling of soil (44), in particular for laying pipes in ditches, comprising an automotive travelling mechanism (2) carrying a machine frame (4) with an upper structure, a boom (6) pivoted to the machine frame (4), said boom having a plurality of boom arms (8,10,12) pivotally connected to each other, and an excavator bucket (16) pivoted to a free end of the boom (6),
characterized in that
a milling/mixing rotor (22) is arranged on the excavator bucket (16) and that the volume surrounded by the excavator bucket (16) is divided into a receiving chamber (24) for the excavated, material and a mixing chamber (26) surrounding the milling/mixing rotor (22). - Device for excavating and backfilling of soil (44) to be attached to site vehicles comprising a boom (6), an excavator bucket (16) and at least one pivot (18,20) for coupling the excavaoor bucket (16) to the boom (6),
characterized in that
a milling/mixing rotor (22) is arranged on the excavator bucket (16) and that the volume surrounded by the excavator bucket (16) is divided into a receiving chamber (24) for the excavated material and a mixing chamber (26) surrounding the milling/mixing rotor (22). - Device according to one of claims 1 or 2 characterized in that a spray device (30) sprays liquid binder into the mixing chamber (26) of the excavator bucket (16).
- Device according to claim 3 characterized in that the spray device (30) comprises a plurality of spray nozzles (32) directed towards the milling/mixing rotor (22).
- Device according to one of claims 1 to 4 characterized in that the excavator bucket (16) comprises a distribution means (42) for powdered binder.
- Device according to claim 5 characterized in that the excavator bucket (16) comprises a storage chamber (38) for powdered binder.
- Device according to one of claims 1 to 6 characterized in that in the working direction of the milling/mixing rotor (22) downstream of the milling/mixing rotor (22) a rotary lock (42) conveying powdered binder from the storage chamber (38) is arranged as distribution means.
- Device according to one of claims 1 to 7 characterized in that a control unit controls the path of the excavator bucket (16) in dependence on the position of the boom arms (8,10,12,14) with the given milling depth being adjusted.
- Device according to one of claims 1 to 8 characterized in that a segment of the milling/mixing rotor (22) in the excavator bucket (16) is surrounded by a circularly curved covering hood (23) defining the mixing chamber (26).
- Device according to claim 9 characterized in that the milling/mixing rotor (22) is mounted in the side walls (28) of the excavator bucket (16) laterally defining the covering hood (23).
- Device according to one of claims 1 to 10 characterized in that the milling/mixing rotor (22) comprises round-shank chisels (25), paddles or knives on its circumferential face.
- Device according to one of claims 10 or 11 characterized in that the spray device (30) comprises one or a plurality of spray unit/spray units (32) integrated in the covering hood (23).
- Process for excavating and backfilling of soil (44), in particular for laying of pipes (46) in ditches, with the steps ofcharacterized byexcavating soil (44) to form a ditch,removing the excavated material,preparating a supporting layer for the pipes (46) in the soil (44),placing and embedding the pipes (46) in a grit or gravel layer (48),backfilling the ditch with filler (50),packing the filler (50), andapplying a top layer (54,58)digging a fist ditch section (52), removing the excavated material, preparing a supporting layer in the first ditch section (52) as well as placing and embedding in a conventional way pipes (46) in the grit and gravel layer (48) in the first ditch section (52),milling subsequent ditch sections (56) in several layers (40) at a given milling depth simultaneously loosening and mixing the milled material with binder being added,excavating the previously milled and treated layer (40), andusing the treated material as filler (50) in the previous ditch section (56).
- Process according to claim 13 characterized in that the ditch section (56) to be dug upstream of the pipes (46) is first milled at a given milling depth, loosened as well as comminuted and mixed, with liquid or solid binders being added, by means of the milling/mixing rotor (22) integrated in the excavator bucket (16), that the treated material capable of being packed is subsequently excavated by the excavator bucket (16) and placed as filler (50) onto the pipes (46) located upstream of said ditch section (56) as seen in the working direction.
- Process according to one of claims 13 or 14 characterized in that excavation of the soil (44), milling, loosening and mixing, excavation of the material previously prepared in the first ditch section (52) and backfilling the treated material as filler (50) in the following ditch sections (56) are carried out by an excavator bucket (16) comprising an integrated milling/mixing rotor (22).
- Process according to one of claims 13 to 15 characterized in that the excavator bucket (16) travels along one and the same path reproducibly preset by a control unit and applies one and the same working depth during milling, loosening, mixing and excavating the milled material.
- Process according to one of claims 13 to 15 characterized in that the liquid and/or powdered binder is continuously supplied to the excavator bucket (16) during milling the following ditch layers (56).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19727549 | 1997-06-28 | ||
| DE19727549A DE19727549C2 (en) | 1997-06-28 | 1997-06-28 | Device and method for excavating and filling in soil |
| PCT/EP1998/002756 WO1999000555A1 (en) | 1997-06-28 | 1998-05-12 | Device and method for excavating and redepositing earth |
| CA002293958A CA2293958C (en) | 1997-06-28 | 2000-01-06 | Device and process for excavating and backfilling of soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1012409A1 EP1012409A1 (en) | 2000-06-28 |
| EP1012409B1 true EP1012409B1 (en) | 2002-09-04 |
Family
ID=25681450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98929295A Expired - Lifetime EP1012409B1 (en) | 1997-06-28 | 1998-05-12 | Device and method for excavating and redepositing earth |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US6312194B1 (en) |
| EP (1) | EP1012409B1 (en) |
| JP (1) | JP3957328B2 (en) |
| AT (1) | ATE223541T1 (en) |
| CA (1) | CA2293958C (en) |
| DE (2) | DE19727549C2 (en) |
| ES (1) | ES2183379T3 (en) |
| WO (1) | WO1999000555A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19852583B4 (en) * | 1998-11-14 | 2005-11-03 | Rainer Schrode Gmbh | Mobile device for crushing stones o. The like. |
| DE19907430C5 (en) * | 1999-01-29 | 2005-12-15 | Schenk, Jürgen | Device for breaking up cover layers |
| GB2368358B (en) | 2000-10-23 | 2004-10-13 | Mastenbroek Ltd | Trenching method and apparatus |
| DE20108725U1 (en) * | 2001-05-25 | 2001-08-30 | Schenk, Jürgen, 70188 Stuttgart | Digging device with suction device |
| DE20108727U1 (en) | 2001-05-25 | 2001-08-30 | Schenk, Jürgen, 70188 Stuttgart | Tool for excavating and preparing surface layers, soil or rocky ground |
| DE10202536A1 (en) | 2002-01-24 | 2003-08-21 | Juergen Schenk | Milling device for soil, rock, excavation or other material |
| US7186059B2 (en) * | 2003-04-22 | 2007-03-06 | Tommy Barnes | Padding machine and method of use |
| US20050097689A1 (en) * | 2003-06-06 | 2005-05-12 | Harr Technologies, Llc | Culvert cleaning tool and method |
| US20060243303A1 (en) * | 2003-06-06 | 2006-11-02 | Harr Technologies, Llc | Drainage structure cleaning tool and method |
| GB2435654B (en) * | 2006-03-01 | 2010-12-08 | Gareth John Thomas | Attachment for excavator |
| GB2435653C (en) * | 2006-03-01 | 2019-03-20 | John Thomas Gareth | Excavator |
| DE102007010101B4 (en) * | 2007-03-02 | 2012-07-05 | Geschw. Balter Bauunternehmung Gmbh | Method for producing a supply line duct and train consisting of vehicles for carrying out the method |
| US8068962B2 (en) | 2007-04-05 | 2011-11-29 | Power Curbers, Inc. | 3D control system for construction machines |
| CA2621691C (en) | 2008-02-08 | 2013-03-19 | Guy Randall Galbreath | Soil fracturing tool |
| KR20140093946A (en) * | 2011-11-17 | 2014-07-29 | 다우 코닝 코포레이션 | A method for preparing a diorganodihalosilane |
| CN110714494B (en) * | 2019-11-18 | 2024-07-26 | 湖北工程职业学院 | Bucket of loose excavator |
| RU204477U1 (en) * | 2021-03-02 | 2021-05-26 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Earthmoving Bucket |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1756180A1 (en) * | 1968-04-17 | 1970-03-12 | Walter Schumann | Device for milling, loading and transporting silage and the like. |
| FR2233448A1 (en) * | 1974-01-28 | 1975-01-10 | Poclain Sa | Bucket for a hydraulic excavator - has chain driven paddles adjacent toothed edge to break up the ground |
| US4023288A (en) * | 1974-02-15 | 1977-05-17 | Harry James Roe | Backhoe compactor/scraper apparatus and method |
| US4100688A (en) * | 1976-08-19 | 1978-07-18 | Earth Pack, Inc. | Earth working apparatus |
| US4126083A (en) * | 1977-02-07 | 1978-11-21 | Caterpillar Tractor Co. | Attitude control for implement |
| JPS5988528A (en) * | 1982-11-10 | 1984-05-22 | Takao Shoji | Ground improver |
| FR2546207B3 (en) * | 1983-05-20 | 1986-07-04 | Deboffles Regis | DEVICE FOR THE COLLECTION AND LOADING OF COMPACTED MATERIAL |
| DE3345299A1 (en) * | 1983-12-14 | 1985-06-27 | Völk, Maschinenbau, 8910 Landsberg | Front-loader flat-silo cutter |
| DE3603675A1 (en) * | 1986-02-06 | 1986-07-10 | Alfred Dr. 2095 Obermarschacht Hackmack | COMBINATION OF A MILL AND A CONTAINER DESIGNED AS EARTHMOVER |
| FR2600689B1 (en) * | 1986-06-26 | 1992-03-13 | Rivard Ets | MECHANIZED ASSEMBLY FOR TRUNKING A TRUCK AND LAYING LONG OBJECTS |
| WO1988003200A1 (en) * | 1986-10-22 | 1988-05-05 | Gunnar Olsson | Cleansing apparatus for excavators |
| US4852277A (en) * | 1988-01-19 | 1989-08-01 | Ward Arthur A | Backhoe scraper apparatus |
| US4793732A (en) * | 1988-01-21 | 1988-12-27 | Jordon Robert L | Pavement slot cutter |
| US4943165A (en) * | 1989-06-16 | 1990-07-24 | United States Pollution Control Company, Inc. | Sludge stabilizing method and apparatus |
| SE463217B (en) * | 1989-12-21 | 1990-10-22 | Treman Ljusdal Handelsbolag | EXCAVATOR WITH ROTARY BRUSH |
| FI86320C (en) * | 1990-05-18 | 1992-09-02 | Risto Nyberg | Device for treating soil material |
| US5379534A (en) * | 1991-01-22 | 1995-01-10 | Negishi; Jinichiro | Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine |
| US5491914A (en) * | 1992-11-24 | 1996-02-20 | Negishi; Jinichiro | Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine |
| FI749U1 (en) * | 1993-03-04 | 1993-06-09 | Ideachip Oy | Siktkross Foer jordmaterial |
| SE506398C2 (en) * | 1993-04-16 | 1997-12-08 | Scooper Ab | Combi bucket for picking up and decomposing materials |
| US5423137A (en) * | 1993-11-12 | 1995-06-13 | Cochran; Gary L. | Pavement cutting and excavating tool |
| US5493796A (en) * | 1994-07-25 | 1996-02-27 | Ballew; Raymond E. | Pipeline padding apparatus |
| US5592761A (en) * | 1995-08-07 | 1997-01-14 | Ward; Arthur A. | Backhoe scarifying apparatus |
| US6158925A (en) * | 1998-03-24 | 2000-12-12 | Barnard Construction Company, Inc. | Apparatus for installing pipeline fill |
-
1997
- 1997-06-28 DE DE19727549A patent/DE19727549C2/en not_active Expired - Fee Related
-
1998
- 1998-05-12 AT AT98929295T patent/ATE223541T1/en not_active IP Right Cessation
- 1998-05-12 JP JP50523399A patent/JP3957328B2/en not_active Expired - Fee Related
- 1998-05-12 US US09/446,612 patent/US6312194B1/en not_active Expired - Fee Related
- 1998-05-12 EP EP98929295A patent/EP1012409B1/en not_active Expired - Lifetime
- 1998-05-12 DE DE59805447T patent/DE59805447D1/en not_active Expired - Lifetime
- 1998-05-12 ES ES98929295T patent/ES2183379T3/en not_active Expired - Lifetime
- 1998-05-12 WO PCT/EP1998/002756 patent/WO1999000555A1/en active IP Right Grant
-
2000
- 2000-01-06 CA CA002293958A patent/CA2293958C/en not_active Expired - Fee Related
-
2001
- 2001-11-05 US US09/985,521 patent/US6530723B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3957328B2 (en) | 2007-08-15 |
| WO1999000555A1 (en) | 1999-01-07 |
| ES2183379T3 (en) | 2003-03-16 |
| US6530723B2 (en) | 2003-03-11 |
| US6312194B1 (en) | 2001-11-06 |
| US20020025228A1 (en) | 2002-02-28 |
| CA2293958C (en) | 2008-01-08 |
| DE59805447D1 (en) | 2002-10-10 |
| JP2002506496A (en) | 2002-02-26 |
| DE19727549C2 (en) | 2000-03-02 |
| CA2293958A1 (en) | 2001-07-06 |
| ATE223541T1 (en) | 2002-09-15 |
| EP1012409A1 (en) | 2000-06-28 |
| DE19727549A1 (en) | 1999-02-04 |
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