EP2917410A1 - Verfahren zum verschäumen eines schotterbetts einer eisenbahngleisanlage - Google Patents
Verfahren zum verschäumen eines schotterbetts einer eisenbahngleisanlageInfo
- Publication number
- EP2917410A1 EP2917410A1 EP13789290.7A EP13789290A EP2917410A1 EP 2917410 A1 EP2917410 A1 EP 2917410A1 EP 13789290 A EP13789290 A EP 13789290A EP 2917410 A1 EP2917410 A1 EP 2917410A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- ballast bed
- rail
- foaming
- foaming agent
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
- E01B27/02—Placing the ballast; Making ballastway; Redistributing ballasting material; Machines or devices therefor; Levelling means
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/001—Track with ballast
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/03—Injecting, mixing or spraying additives into or onto ballast or underground
Definitions
- the present invention relates to a method for foaming a ballast bed of a railway track system, with its Hil e the ballast bed of a railway track system can be solidified with sufficient elasticity.
- PU polyurethane
- the ballast bed is partially cleared ("dumped"), for example by removing 15 cm to 20 cm of the ballast bed inside the sleeper compartment.
- the evacuated sleeper compartment is filled again with tufa boulders to a nominal operating height of the ballast bed in the sleeper compartment in regular rail traffic operation so that any foam rising from the depth is covered by the later ballast to the nominal operating height.
- the top of the ballast bed is positioned at a height above a lower side of the sills facing in the direction of gravity, wherein the upper edge of the ballast layer may be located just below the top of the sill.
- a method for foaming a ballast bed of a railroad track system wherein the railroad track system has sleepers resting on the ballast bed and railways lying on the sleepers, wherein the rails are covered at least in a partial area along a region of the ballast bed that is to be glazed and a foaming agent is covered is introduced into the ballast bed while the rails are covered, wherein the ballast bed in a threshold space bounded by two subsequent thresholds a counter to the gravity Direction facing having top and the ballast bed is piled up so that the top of the ballast bed is positioned at a height above a direction in S chwerkraftraum pointing underside of the threshold.
- the upper side of the ballast bed which is positioned at a height above a lower side of the sleeper in the direction of gravity, is thus positioned at the nominal operating height of the ballast bed.
- the knowledge is exploited that, contrary to the previous assumption, it is possible to foam the ballast bed in such a way that the resulting foam, in particular of polyurethane (PU), remains within the ballast bed and does not swell out of the ballast bed and contaminate the rails.
- PU polyurethane
- a blowing agent in particular CO2
- the essentially liquid foaming agent can flow from the top of the ballast bed into the cavities of the ballast bed a significant chemical reaction takes place and the solidified foam is formed.
- a dumped sleeper compartment is not required for this purpose, so that the starting materials and / or the foam can be applied to an unchecked ballast bed.
- the working steps Auskoffern before the foaming and the filling of the ballast bed after foaming can be omitted, whereby the total duration of a construction site, for example, for new construction and / or renovation of a track section, can be significantly reduced.
- ballast bed can be sprayed with the foaming agent by the covered rails, it is not necessary to insert a distributor pipe in the ballast bed for introducing the foaming agent. This accelerates the foaming of the ballast bed and in particular allows a continuous operation during foaming of the ballast bed.
- the ballast bed is formed in particular by an irregular accumulation of sharp-edged ballast stones, wherein the geometric shape and / or the dimensions of the ballast stones can scatter in comparatively large tolerance ranges.
- the ballast bed is in the direction of travel in Cross-section in particular designed substantially trapezoidal with laterally sloping slope surfaces.
- the ballast bed can rest on a substrate ("planum"), wherein in particular between the subgrade and the ballast bed drainage, such as a drainage mat, for the removal of liquids, especially rainwater, may be provided from the ballast bed.
- the sleepers On the ballast bed, the sleepers may rest, on which in turn the rails rest in a distance corresponding to the track rail of the intended rail vehicle.
- the sleepers may be slightly embedded in the ballast bed so that not only the bottom but also the side surfaces of the sleepers may be in contact with the ballast bed.
- the rails may be fastened to the sleepers by means of fasteners, in particular Vossloh clamps.
- the foaming agent is in particular a mixture of a reactive mixture, which in particular contains isocyanate and pol yol, wherein the mixture may additionally contain at least one catalyst and / or additional blowing agent.
- the blowing agent in particular CO:, is produced by a chemical reaction of the foaming agent.
- the foaming agent may further contain additives which improve, for example, durability and / or handleability.
- the foaming agent is environmentally compatible, preferably substantially free of amines.
- the vertical positioning of the upper side of the ballast bed in the sleeper compartment substantially corresponds to the nominal operating height of the ballast bed in the sleeper compartment in regular commercial operation.
- the ballast bed is thereby within the threshold compartment already during the foaming in its designated final state, so that a previous clearing of the sleeper compartment and / or a subsequent deterioration of the sleeper compartment with ballast stones can be completely eliminated.
- the operating height of the ballast bed may in particular extend to a rail side pointing away in the direction of gravity of the rail or may have a distance d to the rail underside of 0.5 cm ⁇ d ⁇ 10 cm.
- the foaming agent is applied at an altitude above a running surface of the rail from an outlet, wherein in particular the height level for foaming of two subsequent S chwellenf kauern is kept substantially constant.
- the foaming agent can thereby be applied to the ballast bed with and / or without a displacement of the at least one outlet relative to a rail vehicle having the at least one outlet, for example by leakage and / or spraying.
- the outlet may be movable relative to a rail vehicle having the outlet in a longitudinal direction and / or a transverse direction, wherein the at least one outlet may be movably formed beyond one end of the sills in the transverse direction.
- the outlet by a short with a mixing head form a pipe piece or nozzle piece connected to mix the components of the foaming agent, so that longer distances for dispensing the foaming agent are avoided. The risk of clogging the outlet is thereby reduced.
- At least the rail and / or the threshold is covered with at least one beveled cover aligned with respect to the direction of gravity.
- the cover may cover one or both rails and / or cover one or both adjacent to a threshold compartment sleepers.
- the cover may be formed, for example, in the form of a cover plate.
- the foaming agent may drain on the cover and pass from the rail and / or the threshold away to the ballast bed. Contamination of the rail and / or the threshold is thereby avoided, wherein the otherwise meeting the rail and / or the threshold foaming agent for foaming the ballast bed, in particular in the vicinity of the rail, preferably below the rail, can be used.
- the foaming agent can be applied substantially evenly, in particular, to the railway track system, wherein it can nevertheless be ensured that sufficient foaming agent for foaming the ballast bed can be introduced in the hard-to-reach area of the ballast bed below the rail.
- the rail and / or the threshold is covered by a cover, wherein the cover has a first cover cover plate and a second cover connected at an angle with the first cover.
- the cover may cover the rail and / or the threshold comparable to a gabled roof, wherein it is also possible that the first cover are connected to the second cover indirectly via a substantially horizontally oriented intermediate piece with each other to reduce the vertical extent of the cover ,
- the cover and / or the cover hood may be formed framed, wherein the frame-shaped cover and / or cover the rails and the thresholds of a sleeper compartment, on which the foaming agent is to apply cover. In particular, lateral slippage of the cover plate from the rail can be avoided.
- the covers can be placed on the ballast bed and / or clamp the rail between the two cover plate due to their own weight.
- the cover can thereby have sufficient stability, so that the pressure of the impact on the cover Shuummitteis the cover does not press from the rail.
- the cover and / or the cover at least one guide / on continuous Mittuhren the cover and / or the cover on the rail.
- the guide may be a guide-bound guide that allows for accurate positioning of the cover and / or the covers relative to the rails.
- the guide can be designed, for example, in the form of a frame for placement on the rails, and can len, wheels, and / or sliding shoes for contacting the rail or rails.
- the positioning of the cover and / or the cover in the direction of travel can be defined defined. Further, it is possible that the foaming agent is delivered bevelled in the direction of travel, so that the foaming agent with a force component in the direction of travel or against the direction of travel impinges on the cover and / or the cover and thereby the cover and / or the cover to be movable in a longitudinal direction can.
- the cover and / or the cover may be formed like a frame, wherein the frame-shaped cover of covers and at least one intermediate piece, for example as an open frame, may be formed. Thereby, the frame-shaped cover and / or cover the rails and the thresholds of a sleeper compartment, on which the foaming agent is applied to cover. Through the guide, a continuous entrainment of the cover and / or the cover along the rails can be made possible, whereby a continuous application of the reaction mixture can be made possible.
- the cover and / or the cover has a beading agent for blowing off foaming agent, wherein the beading agent is designed in particular as a coating, wherein preferably a plurality of peel-off films arranged one above the other are provided, each with a coating forming the beading agent.
- the bead-off agent can have a microstructure designed in a similar way to the lotus plant, resulting in a lotus-like beading effect.
- a plurality of peel-off films, which are interconnected via a removable adhesive layer may be provided, which are each provided with the bead-off agent.
- the uppermost release liner can be removed, so that the underlying release liner or the underlying Abperlstoff can be used for further use.
- the purging agent adhesion of the foaming agent to the cover and / or the cover hood can be avoided, so that the foaming agent can be passed quickly to the ballast bed, preferably before foaming of the foaming agent commences.
- the cover and / or the cover can be protected from contamination by the foaming agent.
- the cover and / or the cover can thereby be used several times wi ederv. For example, it is possible to first cover a rail with the cover and / or the cover.
- the cover and / or the covering hood can be taken up again and used to cover another area of the scissors, while foaming agent is still applied in an area following the previous area, for which another set Covers and / or covers is used.
- This can cover a large distance of the rails during foaming with a low material usage for covers and / or covers become.
- the cover plate can be cleaned by compressed air, in particular a compressed air pressure surge, possibly still adhering reaction mixture.
- the foaming agent is introduced into the ballast bed far enough that, after foaming of the foaming agent, the resulting foam essentially remains completely below the upper side of the ballast bed in the sleeper compartment.
- the beginning and end of the foaming process may be adjusted accordingly so that a desired height of rise of the resulting foam may be provided such that the foam does not extend beyond the top of the ballast bed. An unnecessary use of material of the foaming agent is avoided.
- the delivery of the foaming agent is interruptible at a transition via a rail and / or from a threshold compartment to a subsequent threshold compartment.
- An interruption of the application of the foaming agent can be provided, for example, in an application of the foaming agent without a cover and / or cover.
- the application of the foaming agent can be interrupted when the Ausiass is guided over a rail and / or threshold. By the brief interruption of the application can be avoided that the foaming agent wets the rail, in particular the top of the rail, and / or the threshold between two subsequent threshold compartments. An unnecessary use of material of the foaming agent is avoided.
- the delivery of the foaming agent is carried out by a reciprocating movement of an outlet in a transverse and / or longitudinal direction for applying the foaming agent, in particular transversely to the direction of travel of the railway track systems, wherein the delivery of the foaming agent can be interrupted in the rail.
- the leak can be guided in a U-shape around the end of the sleeper, which can improve the bedding of the sleepers in the ballast bed. The risk of contamination of the rail is thereby reduced.
- the cover and / or cover is brought into contact with a lesser mass of foaming agent, thereby increasing the service life of the covers and / or covers.
- the foaming agent is applied by a rail vehicle traveling on the rails of the railway track system, wherein the rail vehicle for the foaming of the ballast bed of the railway track system is substantially continuous, in particular at a constant driving speed.
- the at least one Ausiass is independent of a movement of the rail vehicle in the longitudinal direction and the transverse direction with respect to the direction of travel of the rail vehicle movable.
- the at least one escape route can be moved substantially parallel to the threshold during a movement of the rail vehicle, in particular by a simultaneous movement in the longitudinal direction coordinated with the speed of the rail vehicle. direction and transverse direction.
- FIG. 1 shows a schematic plan view of a railway track system
- Fig. 2 is a schematic sectional view of a detail of the Eisenbalmgleisstrom during a foaming
- FIG. 3 is a schematic plan view of the railway track system from FIG. 2;
- FIG. Fig. 4 is a perspective view of a continuously mitschreibbaren cover;
- Fig. 5a a schematic plan view of a cover;
- Fig. 5b a schematic plan view of a railway track system with a cover
- Fig. 6 a side view of a railway track system with two covers.
- the railway track system 10 shown in FIG. 1 has a ballast bed 12, on which several sleepers 14 rest.
- the sleepers 14 carry two rails 16 which are aligned in the direction of travel, in the longitudinal direction X, and which are arranged spaced from each other according to the intended track width. Between two sleepers 14 and the two rails 16, a sleeper compartment 18 is formed.
- the rail 16 during foaming of the ballast bed 12 can be covered with a cover 20.
- the cover 20 has a first cover 22 and a second cover 24, which are connected to each other at an angle like a gable.
- the cover 20 has at least one intermediate piece 38, which is arranged in the transverse direction Y, substantially perpendicular to the rail 16, on the covers 22, 24.
- the intermediate piece 38 may be designed in the form of a one-sided cover with a slope towards the sleeper compartment.
- the intermediate piece 38 can be designed in the form of a plate with two inclinations.
- the cover 20 spaced to a top 26 of the ballast bed 12 in the region of the threshold compartment 18.
- the cover 20 can be centered by the side of a rail head 28 of the rail 16 adjacent cover 22, 24 and jammed by its own weight with the rail 16. A trained by the rail head 28 facing the direction of gravity facing running surface 30 of the rail 16 is thereby substantially completely covered. By the intermediate piece 38, the threshold 14 is covered.
- a foaming agent is applied from a mixing head 32 provided in a transverse direction Y via an outlet 34 at a height level provided in the direction of gravity above the running surface 30 of the rail 16 and optionally above the cover 20, the substantially liquid foaming agent may be applied on the covers 22, 24 of the cover 20 and the intermediate piece 38 of the running surface 30 of the rail 16 and the threshold 14 flow away and instead get to the ballast bed 12.
- the sleeper compartment 18 is bagged so that the upper side 26 of the ballast bed 12 in the region of the sleeper compartment 18 can already correspond to the nominal operating height of the ballast bed 12 in regular rail operation.
- the upper side 26 of the ballast bed 12 in the region of the sleeper compartment 18 can thereby be at a height level, which is provided in the direction of gravity above an underside 36 of the sleeper 14 facing the planum.
- the cover 20 has at least one intermediate piece 38 arranged transversely to the direction of travel.
- the inter mediate piece pieces 38 may be arranged in the direction of travel or against the direction of travel on the covers 22, 24 and at least partially protect the threshold (not shown) and at least partially a fastener 40, for example in the form of a Vossioh clamp from contamination by the foaming agent ,
- the rail 16 can be protected in a movement of the mixing head 34 in the transverse direction Y from contamination.
- the cover 20 in Fig. 4 has covers 22,24 and two spacers 38, wherein the intermediate pieces 38 have at least the width of the thresholds.
- the cover 20 has a rail-related guide 42 / to continuously entrain the cover 20 in the form of rollers, which roll on the rails 16 in the longitudinal direction X.
- the rollers 42 are connected via a linkage 44, on which the cover 20 rests.
- the mixing head 32 can be moved both in the transverse and in the longitudinal direction X relative to the rail vehicle (not shown) and / or the cover 20. Thereby, in a continuous movement of the rail vehicle and / or the cover 20 of the mixing head 32 are moved substantially parallel to the clamps 14 for applying the foaming agent in the threshold compartment 18.
- the mixing head 32 can perform about a rail 16 a pendulum movement in the transverse direction Y, wherein the pendulum movement can end around the threshold 14 around.
- FIG. 5 a shows a covering hood 20 arranged on two rails 16 with the first and second covers 22, 24 and two intermediate pieces 38.
- the covering hood 20 is illustrated in FIG. 5 b on a railway track system 10, two mixing heads 32, one for each rail 16 , are provided.
- the mixing heads 32 can be moved independently of one another both in the longitudinal direction X and in the transverse direction Y.
- the mixing heads 32 can each oscillate about a rail 16 and thereby follow a U-shaped travel path 46 with components in the longitudinal direction X and transverse direction Y, wherein the travel path 46 in each case to the outside end of the thresholds 14th can be guided.
- the foaming agent can predominantly be introduced into the ballast bed 12 in the region of the rails 16.
- FIG. 20 An arrangement of two covers 20, each of which may have one or two mixing heads 32, is shown in FIG. Via the outlets 34 of Mischlcöpfe 32, the foaming agent 48 on the ballast bed 12, in particular in the S chwellenfumbleern 18, are applied.
- the cover hoods 20 can be moved continuously along the rails 16 in the longitudinal direction X by guides 42.
- the foaming agent 48 can be applied continuously, the rails 16 and the thresholds 14 are protected by the covers 20 from contamination.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Railway Tracks (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13789290.7A EP2917410B1 (de) | 2012-11-09 | 2013-11-08 | Verfahren zum verschäumen eines schotterbetts einer eisenbahngleisanlage |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12192106.8A EP2730699A1 (de) | 2012-11-09 | 2012-11-09 | Verfahren zum Verschäumen eines Schotterbetts einer Eisenbahngleisanlage |
PCT/EP2013/073361 WO2014072460A1 (de) | 2012-11-09 | 2013-11-08 | Verfahren zum verschäumen eines schotterbetts einer eisenbahngleisanlage |
EP13789290.7A EP2917410B1 (de) | 2012-11-09 | 2013-11-08 | Verfahren zum verschäumen eines schotterbetts einer eisenbahngleisanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2917410A1 true EP2917410A1 (de) | 2015-09-16 |
EP2917410B1 EP2917410B1 (de) | 2017-12-27 |
Family
ID=47172518
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12192106.8A Withdrawn EP2730699A1 (de) | 2012-11-09 | 2012-11-09 | Verfahren zum Verschäumen eines Schotterbetts einer Eisenbahngleisanlage |
EP13789290.7A Not-in-force EP2917410B1 (de) | 2012-11-09 | 2013-11-08 | Verfahren zum verschäumen eines schotterbetts einer eisenbahngleisanlage |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12192106.8A Withdrawn EP2730699A1 (de) | 2012-11-09 | 2012-11-09 | Verfahren zum Verschäumen eines Schotterbetts einer Eisenbahngleisanlage |
Country Status (5)
Country | Link |
---|---|
US (1) | US9822491B2 (de) |
EP (2) | EP2730699A1 (de) |
CN (1) | CN104769184B (de) |
DK (1) | DK2917410T3 (de) |
WO (1) | WO2014072460A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR112014004851A2 (pt) * | 2011-09-01 | 2017-04-04 | Bayer Ip Gmbh | processo para a produção de balastro |
CN108131162B (zh) * | 2018-02-11 | 2023-06-13 | 中铁二院工程集团有限责任公司 | 一种隧道排水装置及隧道整体道床 |
CN111254761B (zh) * | 2020-03-18 | 2024-10-29 | 成都东日瑞姆机械有限公司 | 用于聚氨酯道床固化的免烘干多枪头双流道浇注设备 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0718608A (ja) * | 1993-06-30 | 1995-01-20 | Railway Technical Res Inst | 軌道の道床砕石飛散防止方法 |
DE19929283A1 (de) * | 1999-06-25 | 2000-12-28 | Gudehus Gerd | Sanierung von Gleisbettwellen durch Injektion |
EP1619305B1 (de) | 2004-07-23 | 2009-05-06 | MSB-Management GmbH | Teilverschäumter Gleisoberbau und Verfahren für dessen Herstellung |
WO2007090901A2 (de) * | 2006-02-10 | 2007-08-16 | Msb-Management Gmbh | Verfahren zur herstellung eines teilverschäumten gleisoberbaus |
DE102007019669A1 (de) * | 2007-04-24 | 2008-11-06 | Hennecke Gmbh | Verfahren und Vorrichtung zum Ausschäumen von Schotterbetten |
DE102007057064A1 (de) | 2007-11-27 | 2009-05-28 | Hennecke Gmbh | Verfahren zum Verfestigen eines Schotterbetts und Vorrichtung zur Durchführung des Verfahrens |
CN102191730B (zh) * | 2010-03-09 | 2015-08-26 | 拜耳材料科技(中国)有限公司 | 聚氨酯弹性体道砟垫及其制备方法 |
BR112012026894A2 (pt) * | 2010-04-21 | 2016-07-19 | Bayer Materialscience Ag | camada de lastro de poliuretano, método para preparar a mesmo e uso da mesma |
DE102010016733B4 (de) | 2010-04-30 | 2012-09-20 | Bayer Materialscience Aktiengesellschaft | Konditioniervorrichtung und Verfahren zum Trocknen und Temperieren eines Schotterbetts |
DE102011053368A1 (de) * | 2011-09-07 | 2013-03-07 | Bayer Materialscience Aktiengesellschaft | Raupenkette, Konditioniervorrichtung, Verfahren zum Temperieren eines Schotterbetts sowie Verwendung eines Schaumstoffs |
-
2012
- 2012-11-09 EP EP12192106.8A patent/EP2730699A1/de not_active Withdrawn
-
2013
- 2013-11-08 CN CN201380058617.2A patent/CN104769184B/zh not_active Expired - Fee Related
- 2013-11-08 EP EP13789290.7A patent/EP2917410B1/de not_active Not-in-force
- 2013-11-08 WO PCT/EP2013/073361 patent/WO2014072460A1/de active Application Filing
- 2013-11-08 US US14/441,015 patent/US9822491B2/en not_active Expired - Fee Related
- 2013-11-08 DK DK13789290.7T patent/DK2917410T3/en active
Non-Patent Citations (1)
Title |
---|
See references of WO2014072460A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104769184B (zh) | 2017-10-13 |
EP2730699A1 (de) | 2014-05-14 |
CN104769184A (zh) | 2015-07-08 |
EP2917410B1 (de) | 2017-12-27 |
US20150292167A1 (en) | 2015-10-15 |
WO2014072460A1 (de) | 2014-05-15 |
US9822491B2 (en) | 2017-11-21 |
DK2917410T3 (en) | 2018-04-16 |
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