DD152380A1 - METHOD AND DEVICE FOR UNDERGROUND FASTENING - Google Patents

Abstract

The invention "Underground consolidation method and apparatus" includes a solution path to compact the void volume in the subsurface of reconstructed mining lands as well as in loose subsoil. It should thus Bergfolgeschaeden u. Bauschaeden be avoided. D. Method is also in already agri.forstwirtschaftl. managed terrain applicable. D. Process steps are: drilling down a hole, preferably by means of drilling rocket o. Bodenendurchstossgeraet, however, any drilling methods are applicable. Then lowering of a device in d. Borehole, d. consists of a Fuehrungsrohr, d. flexible "vibration finger" perpendicular to the device u. parallel to the earth's surface, d. with adequate frequency on d. act loose or cavity interspersed soil, such that it is dichtgeruettet. Sensors on d. "Vibrating fingers" automatically convey the measured values of the respective degree of compaction.

Description

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a) Title of the invention

Method and device for underground consolidation

b) Field of application of the invention

The invention is applicable for the underground consolidation of poured mining hill landscapes and for land, for st or to use building land with loose, holhalthaltigem, eroded or eroslonsgefährdetem underground.

c) Characteristic of the known technical solutions

Underground consolidation is of great importance in the construction, mining and agricultural and agricultural sectors. It ensures the stability of structures and prevents consequential damage, which is manifested in cutbacks of already recoverable mining dumps and the resulting consequences for people, equipment, plants and plantings

In spoof dumps of lignite mining z. For example, the void volume of the soil may be 40-50 % and may be additionally expanded by groundwater streams and grouting, such that the surface suddenly collapses

 So far, the authorization of the succession lanc ility has been mainly due to the exemption of the Schutthü: -; and compaction of the surface as well as

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Delivery of blutterbodon and / or filter ash to increase fertility. Below the surface thus treated, 30, 40 or also (in the so-called "Zukunftsfelderh", the digestion of which is now being prepared) can be over 100 or 200 m insufficiently compacted bulked waste mass, the territory can be hundreds of hectares in size.

So far, people trusted natural compaction and allowed the soil to rest for a few years before use, but after 15 or more years, unpleasant surprises may occur ·

An attempt was made to ensure drainage through so-called receiving waters, but this does not eliminate the cause or the occurrence of consequential damage,

Positive, but not sufficient, has a condensing large drop height z. For example, it has already been proposed (V / P E 02 D / 220178) to apply vibration rods during the filling process step by step and thereby preventively compact the subsoil.

Furthermore, and in addition, the injection of cavity filling and solidifying substances z. As cement, filter ash, clay and the like. Be brought into effect.

The above-mentioned vibration linkage are excellently applicable in the hitherto proposed form during the Abraumverkipp, but can not be used in already tipped overburden or in already reusable and used terrain.

d) Object of the invention

It is the object and purpose of the invention ι the sub-round compaction by adequate vibration, which was previously provided and disclosed only as a preventive measure during the tilting or pouring process, so to modify

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that the hitherto impossible compression of the subsurface of already poured and re-made surfaces can be realized

e) Presentation of the essence of the invention

The technical problem which is solved by the invention is the elimination of the underlying cavity volume or the compaction of the subsurface of heaps or mining hill landscapes and thus of consequential damages or structural damage. Techniques of the method are that holes are drilled in hazardous areas into which devices are inserted with expandable adjustable "vibrating fingers" ¹ which "horizontally into the bulk material due to the vibratory action in the bulk material measured by the device itself Inserting the slack range and compacting it or forcing a deliberate and intended safe repositioning of the earth's surface · The vibrating fingers ¹¹ can be pushed out of a vertical, inserted into the bore in one or more "floors", which is made possible for example in that they are designed as flexible hollow metal cable and / or full cable, which are deflected in the height range to be compressed by 90 °, from the vertical to the horizontal direction, by guide pieces, these "vibrating fingers" bzwe flexible cable during its vibrating state into the earth pressed and pulled out after achieved compression effect v /.

The vertical wells initiating the process, which must be drilled for lowering the device into the already dumped and eventually used soil, may be made by known drilling techniques, but preferably the Soviet-developed exploration drilling with

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It has two advantages: Firstly, it is the fastest existing drilling method, secondly, the explosive vibration promotes underground compaction.

Furthermore, the drilling comes by recoil effect, z. B. with so-called puncture devices, which work pneumatically and are manufactured in series in the Soviet Union and in the PR of Poland, into consideration. If such soldering possibilities are not available, the drill rigs customary and available to date in lignite mining can bring down the bore required for the realization of the method.

f) embodiments

In the following, the invention will be clarified with the aid of a simplified representation of the method and the device combination. In the figure, 1 means the earth's surface from which the bore 2 has been drilled to the Bochlochtiefstelle 3. In the bore 2, the guide device 4-, a guide tube or a tubular body with deflectors arranged thereon 7 is lowered · The numerals 5 and 6 symbolize "vibrating fingers", z. Be flexible, vibration transmitting cables that are vibrated by one or more frequency transmitters or vibrators 9 and by virtue of these vibrations, which can be optimally controlled by L'eß- and control devices in 9, by rolling and pressing 9 off the borehole wall 2 penetrate deeper and deeper into the ground horizontally. The vibration causes a soil compaction and elimination of the cavities and receives the interface between soil masses and "vibrating fingers" 5/6 in quasi-liquid state, that is, during the period of vibration, the vibrating fingers 5, б move, - push deeper and again de : i pull out the soil. Paragraph 8 means the introduction of ³ organs from the vibrators 9 into the

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4. numeral 10 symbolizes sensors, which are arranged on the "Vibrationsfіц§ _е гп" 5 and on the flexible cable body 5 forward the measured compaction state of the soil to display devices that can be arranged for example on the vibrator 9 and in its vicinity ·

Modifications, such as _e by arranging one or more than two planes in which "Vibration fingers" 5, 6, working simultaneously, as well as "other design options, features and details are included in the invention idea.

Variants for drilling methods, which are known per se, as well as the advantages of using the Soviet "drilling rocket", have already been mentioned. For larger hole diameter "it is advisable to fill this after completion of the process of the invention.

Claims (3)

1. Method for underground consolidation ζ. B. for culturally, agriculturally and silviculture to be used Bergbaufolgelandschaft and / or subsoil, characterized in that first by any known method a borehole (2) is brought down, but preferably by the (Soviet) method of the Bohrrakete, since then a Device or device combination consisting of guide device (4 ·), vibration fingers or flexible .Pipes (5, 6) is brought down and that the vibrating fingers (5, 6) of one or more vibrators or frequency transmitters (9) in Vibrations offset and at the same time perpendicular to the borehole wall (2) and pressed parallel to the earth's surface (1) in the soil, such that by virtue of the vibration, which is transmitted to the vibrating fingers (5, 6) and from there to the soil, the Hohlra volume in the soil-reducing, soil-improving effect is achieved « 2 · Device according to item 1, characterized in that on the guide tube (4) for the "vibrating fingers" bzv /. flexible cables (5, 6), deflection devices (7) "in one or more levels of the guide tube (4-) are provided, which force a deflection of the" vibrating fingers "(5, δ) from the vertical direction in horizontal direction, wherein the Feed from the earth's surface (1) from or from an aggregate (9) arranged there. 2 23111 ^б Erf indimgsan talks Device according to points 1 and 2, characterized in that sensors (10) for measuring the degree of soil compaction are arranged on the "vibrating fingers" (5, 6), the results of the measurements being transmitted via the flexible cables (51 6) to the display devices provided in the aggregates G) are arranged to transmit. For this 1 ssiia drawings