CN107090861B

CN107090861B - Partition wall device and method for producing a trench in the ground

Info

Publication number: CN107090861B
Application number: CN201710041679.2A
Authority: CN
Inventors: C.赫尔曼; L.A.胡贝尔; L.魏克斯勒
Original assignee: Bauer Maschinen GmbH
Current assignee: Bauer Maschinen GmbH
Priority date: 2016-02-17
Filing date: 2017-01-20
Publication date: 2020-02-18
Anticipated expiration: 2037-01-20
Also published as: KR101919920B1; KR20170096943A; CN107090861A; EP3208384B1; EP3208384A1

Abstract

The present invention relates to a partition wall arrangement and a method for creating a trench in the ground for a partition wall or a cut-off wall. The partition device has a carrier means on which the ground removal unit is supported in a vertically adjustable manner. The invention is characterized in that a first carrier tool and a second carrier tool are provided which are connected to each other via a transverse member and in that the ground removal unit is arranged in an adjustable manner below the transverse member.

Description

Partition wall device and method for producing a trench in the ground

Technical Field

The invention relates to a partition wall arrangement for creating trenches in the ground for partition walls or cut-off walls according to the preamble of claim 1, with a carrier tool (carrier implementation) on which a ground removal unit is supported in a vertically adjustable manner.

The invention further relates to a method for producing a trench in the ground with a partition wall arrangement according to the preamble of claim 11, wherein a ground removal unit is lowered into the ground and in doing so ground material is removed.

Background

Partition wall arrangements for creating trenches in the ground have long been known. As a soil removal unit, it has a so-called diaphragm cutter (diaphragm wall cutter) or a so-called diaphragm gripper. Typically, the ground removal unit is arranged in a vertically adjustable manner on a column or an extension arm. The posts or extension arms on the carrier tool typically have a height of 15 to 30m or more.

The partition or cutoff wall can reach depths of 100m and more. It is used, for example, to prevent horizontal water flow when excavating a construction pit (construction pit). The cutoff wall prevents groundwater from flowing laterally into the construction pit. Furthermore, water from landfills or dams is prevented from laterally penetrating into the ground by the cut-off walls.

In some cases, it may be desirable to create a cut-off wall in or near a building, in a tunnel, or under other confined space conditions. For this reason, carrier tools with larger stems are not suitable.

A particularly compact partition wall arrangement for creating a trench is known from EP 0518297B 1. The partition wall assembly has a rail guided carriage with a frame structure and an extension arm that is only slightly higher than the vertical length of the partition wall cutter. The rope drum (rope drum) for supporting the ropes and connecting the cables and the pipe drum (hose drum) for the supply pipe are supported close to the ground on a supporting frame structure. Due to its compact construction, the known partition device can be used in spaces with a limited constructional height.

From EP 2423388 a1, a method and a device for producing a partition are known, in which several rod-shaped mixing elements together with cutting elements arranged on vertical rods can be lowered vertically along a rod into the ground. For this purpose, the vertical bars must have at least a length corresponding to the depth of the groove. By means of the cutting elements, earth material can be removed simultaneously over the entire depth of the trench. In order to absorb the lateral forces generated, it is taught to provide a separate transport means (vehicle) with supporting and pressing elements in addition to the carrier means with the mixing and removal unit. The supporting and pressing elements are directly connected to the bar-shaped mixing and removal unit in the groove in order to support the unit laterally from behind.

From document GB 2374884 a, a digging device is known which has a digging implement which is rotatable about an axis and displaceable.

Disclosure of Invention

The invention aims to provide a partition wall arrangement and a method for producing a trench in the ground for a partition wall or a cut-off wall in the ground, with which the partition wall or the cut-off wall can be produced efficiently even in the case of particularly restricted spatial conditions.

According to the invention, this object is achieved on the one hand by a partition wall arrangement having the features of claim 1 and on the other hand by a method having the features of claim 11. Preferred embodiments of the invention are set forth in the corresponding dependent claims.

The partition device according to the invention is characterized in that a first carrier means and a second carrier means are provided which are interconnected via cross members (cross members) and that the ground removal unit is arranged in an adjustable manner below the cross members.

The basic idea of the invention is that the ground removing unit is supported as if it were supported on a cross member between two carrier means, which cross member is supported on both carrier means. In this way, the carrier tools themselves can each be designed in a relatively small and compact manner. The load may be distributed to both carrier means on both sides. The central suspension between the two carrier means substantially prevents the otherwise usual risk of a large angular inclination, compared to a land removal unit which is usually only suspended on one side on one carrier means. Thus, the carrier tool can be designed much smaller and to a large extent also without the otherwise usual significant balancing weights (counterbalance) in the rear region of the individual carrier tool. In summary, a particularly compact partition wall arrangement is thus achieved, which can be used, for example, in tunnels, under bridges or overpasses, and in roofed buildings. Due to the good force distribution, even particularly heavy ground removal units or higher partition wall arrangements can be operated efficiently. The two carrier means are in particular movable and can be referred to as carrier vehicles.

Basically, the ground removal unit can be any suitable apparatus, such as a partition grabber. According to an embodiment of the invention, it is particularly preferred that the ground removal unit is a partition wall cutter with at least one pair of cutting wheels, which can be driven in rotation about a horizontal axis of rotation. Particularly preferably, two pairs of cutting wheels are arranged. The partition cutters with rotating cutting wheels allow the trench to be continuously sunk into the ground. The cut-off ground material can be removed from the trench via the suction pipe or left in the trench, in which case it is mixed with the supplied fluid, in particular with the concrete suspension, in the trench. The mixture of ground material and concrete suspension thus formed can be hardened into the desired partition or cut-off wall.

Basically, the ground removal unit can be supported on a rod, more particularly a telescopic rod on the cross member. According to a further development of the invention, a particularly compact construction is achieved in that the ground removal unit is suspended from at least one supporting line. For this purpose, the partition device may have a height which substantially corresponds to or is only slightly larger than the height of the earth removal unit.

According to a further embodiment variant of the invention, it is preferred that the ground removal unit is connected to at least one supply pipe and/or at least one cable. Via the supply pipe or pipes, hydraulic fluid, stabilizing fluid, concrete suspension or other gaseous or flowable medium of the ground removal unit can be supplied into the trench. Furthermore, the removed ground material can also be pumped away from the cutting wheel towards the outside of the trench by means of a corresponding discharge pipe. By means of one or more cables, provision can be made for a corresponding power supply and data lines for controlling the land removal unit. For the purpose of power supply, an internal combustion engine which supplies all other devices (such as hydraulic drives, pumps, etc.) on the carrier means and the ground removal unit can be provided on at least one of the carrier means. Alternatively, external power may be provided, for example by electrical cables.

Preferably, the invention is further developed in that at least one rope drum is provided for the at least one support rope and/or the at least one cable and at least one tube is provided for the at least one supply tube. By means of the corresponding drum, the rope, cable or hose can be supported and actuated in an efficient and compact manner.

A preferred embodiment of the invention is that the rope drum is rotatably supported on the first carrier tool and the tube is rotatably supported on the second carrier tool. The rope reel and the tube are thus functionally separated and arranged on different carrier tools. This results in a weight distribution which is as uniform as possible and facilitates the supply of the partition device.

Basically, the preferably U-shaped or C-shaped transverse member can be designed as a rigid beam element. According to a further development of the invention, the improved movability of the partition device is achieved by providing at least one pivot joint (pivotjoint) on the transverse member. The pivot joint has a substantially vertical pivot axis so that the two carrier tools can be positioned and adjusted relative to each other. This allows for easier movement of the partition means at the corners and generally improves the handling of the entire apparatus.

According to an embodiment variant of the invention, a further improvement of the movability is achieved by the at least one carrier tool having a lower carrier (undercarriage) on which an upper carrier is rotatably supported. Preferably, both carrier tools have a lower carriage with an upper carriage rotatably supported thereon.

Basically, the carrier means can be designed as wheeled transport or rail transport. According to an embodiment of the invention, it is particularly advantageous if at least one of the carrier means is designed as a tracked vehicle with its own drive. The carrier means may be self-propelled. In the case of a single driven carrier tool, the further carrier tool can be moved passively without its own drive. It is particularly preferred, however, that both carrier tools are designed as tracked vehicles with their own drive. In this case, the carrier means or at least its lower support are designed in substantially the same way. This allows particularly good mobility and efficient movement of the entire device even in the case of very restricted spatial conditions, as can occur in tunnels.

Preferably, one or both carrier means are provided with an operating unit. The operating unit may comprise a closed driver's cabin or a simple operating console.

For a particularly compact embodiment variant of the invention, it is preferred to provide a movable operating unit. With the movable operating unit, the carrier tool can be moved remotely controlled by one or more operators. This allows a particularly precise movement of the carrier tool, since the operator can be located directly at a critical position with the movable operating unit. The movable operating unit can preferably be a control panel or, in a particularly simple embodiment variant, a tablet computer with a corresponding operating interface. The connection to the carrier means may be wireless or cabled. Preferably, the at least one operating unit is detachably fastened to the carrier means or carrier means and can be removed by an operator.

The method according to the invention is characterized in that the ground removal unit is arranged on a cross member between the first carrier tool and the second carrier tool, the carrier tools being interconnected via the cross member. The method may be carried out in particular with the aforementioned partition wall arrangement. This therefore results in the advantages mentioned above when carrying out the method.

A preferred method variant of the invention consists in that the trench is implemented in a tunnel, rail or other space with a limited ceiling height. Furthermore, the method may also be effectively implemented in a channel or other space with lateral boundaries.

Furthermore, it is provided according to an embodiment variant of the invention that a partition or a cut-off wall is formed, wherein the groove is designed in a continuous manner and is filled with a hardenable substance. For this purpose, the grooves are initially produced spaced apart from one another and filled with a hardenable substance. In a second sequence, the spaces between the individual partition wall sections are excavated and filled with a hardenable substance. The individual trenches and partition wall sections are thus interconnected and may form a continuous partition wall or cut-off wall. Each partition wall section may be provided with a metal reinforcement as long as the filling substance comprising the concrete material has not hardened.

Drawings

The invention is further illustrated by the preferred embodiments shown schematically in the drawings, in which:

FIG. 1 shows a side view of a partition device according to the present invention;

FIG. 2 shows a plan view from above of the partition device of FIG. 1; and is

Figures 3a to 3h show plan views of a partition wall arrangement according to the present invention during movement at a corner.

Detailed Description

The partition wall arrangement 10 according to fig. 1 and 2 has a first carrier means 20 and a second carrier means 30, each having a crawler-type chassis as a

lower carriage

22, 32. A first upper support 24 with a first upper structure 26 of frame-like construction is arranged on the first lower support 22 via a swivel bearing 23. Correspondingly, a second upper carriage 34 is rotatably supported on the second lower carriage 32 of the second carrier vehicle 30 via a rotary bearing 33. A second superstructure 36 of a frame-like construction is fixed to the second upper support 34.

The first carrier vehicle 20 and the second carrier vehicle 30 are connected to each other via a beam-shaped cross member 12. For this purpose, a horizontally projecting first transverse member 17 is mounted in the upper region of the first superstructure 26 of the first carrier vehicle 20, which is coupled to the second transverse member 18 via a pivot joint 19 with a vertically directed pivot axis. Correspondingly, the projecting second transverse element 18 is firmly fixed in the upper region of the second superstructure 36 of the second carrier vehicle 30. The cross member 12 together with the two

superstructures

26, 36 of the two

carrier vehicles

20, 30 forms a door-like assembly with a free space or gap in which the ground working unit 50 is suspended.

In the embodiment shown, the ground removal unit 50 is designed as a partition wall cutter with an approximately rectangular frame 56, at the lower end of which two cutter wheel pairs 51, 52 are supported rotatably about horizontal

rotational axes

53, 54. On the frame 56 of the ground removal unit 50, a pump 58 is arranged, via which hardened suspension can be injected into the region between the cutting wheel pairs 51, 2 or via which removed ground material with surrounding stabilizing fluid can be sucked away from the cutting trench. Furthermore, a hydraulic drive (not shown) is mounted on the frame 56 for driving the pair of cutting

wheels

51, 52.

The pump 58 is connected to the supply pipe 16, which is guided to the tube 38 via a quarter-circular roller bow 37 on the cross member 12. The tubes 38 are supported on the second superstructure 36 of the second carrier vehicle 30 in a rotatable manner about a horizontal axis of rotation.

The suspension of the ground removal unit 50 on the transverse members 12 is effected by at least one support line 14 which is secured to a suspension 57 at the upper end of the frame 56. Together with several cables 15 containing power and data lines, the support line 14 is guided in a belt-like manner via rotatable diverting rollers 27 on the transverse members 12 to a line drum 28 on the first carrier tool 20. The rope drum 28 is supported in a rotatable manner about a horizontally directed rotation axis in the first superstructure 26 of the first carrier tool 20.

A trench can be created in the ground by the wall partition means 10, in the course of which the ground removal unit 50 is lowered into the ground with the rotating pair of cutting

wheels

51, 52. In doing so, support line 14, cable 15, and supply tube 16 are followed by deployment from line drum 28 or tube 38. The gutters formed in the ground are therefore preferably filled with a stable suspension which is introduced into the gutters via a pump which is not depicted. After the final depth is reached, the ground removal unit 50 is pulled up again when the support line 14, cable 15 and supply pipe 16 are rolled up again. Thereafter, the partition means 10 continues to advance to create additional gutters. Once the filling substance hardens, the thus created and filled trench forms a continuous partition or cut-off wall in the ground.

From fig. 3a to 3h it can be seen that the partition wall arrangement 10 according to the invention with two

carrier vehicles

20, 30 is very easy to move and manipulate even in the case of restricted spatial conditions. According to fig. 3a, the partition wall arrangement 10 according to the invention is located in a tunnel-like main road 5, into which cross roads 7 are introduced at approximately right angles. Between the walls 8, approximately right-angled corner regions 6 are designed.

To move into the cross lane 7, the partition device 10 moves along the main lane 5 when the first carrier vehicle 20 and the second carrier vehicle 30 are aligned. Once the second carrier vehicle 30 (in this case located forward in the direction of travel) is located at the height of the center of the merged cross-lane 7, the lower carriage 32 of the second carrier vehicle 30 is rotated by 90 ° with respect to the upper carriage 34 arranged in an unchanged manner by a corresponding actuation of the crawler track, as shown in fig. 3 b.

The second carrier vehicle 30 can now move in the direction of the cross-lane 7 and enter therein.

During this movement, the first lower carriage 22 of the first carrier tool 20 maintains its longitudinal alignment with the main lane 5. However, as the second carrier vehicle 30 is progressively moved into the cross-over 7, the two

upper brackets

24, 34 are adjusted relative to their respective

lower brackets

22, 32 with deflection occurring at the pivot joints 19 on the cross member 12 of the wall partitioning apparatus 10. In the process, the first transverse member 17 is bent at an increasing angle with respect to the second transverse member 18, as shown in fig. 3c to 3 f.

Fig. 3f shows a right-angled arrangement of the first carrier vehicle 20 relative to the second carrier vehicle 30, and in this right-angled positioning position, the respective

upper rack

24, 34 is again oriented in longitudinal alignment in the same manner with respect to the respective

lower rack

22, 32.

The second carrier vehicle 30 can now move parallel to the intersection 7 and enter therein, while the first carrier vehicle 20 continues to move parallel to the longitudinal direction of the main track 5 until the first carrier vehicle 20 is located at the height of the center of the merged intersection 7, as shown in fig. 3 g. During this movement, the first upper carriage 24 of the first carrier vehicle 20 pivots into the cross lane 7.

Upon reaching the position depicted in fig. 3g, the first lower carriage 22 of the first carrier vehicle 20 is now rotated 90 ° relative to the upper carriage 24 by a corresponding reverse actuation of the tracks of the first lower carriage 22 until the first lower carriage 22 is also aligned with the longitudinal direction of the intersection 7 and the second carrier vehicle 30 just as the first upper carriage 24. From this position shown in fig. 3h, the wall partition means 10 (again aligned in line) can now continue to be moved into the cross-over 7, in which case a trench or a wall partition can be created along the cross-over 7.

Claims

1. A partition wall arrangement for producing trenches in the ground for partition walls or cut-off walls, with a carrier means on which a ground removal unit is supported in a vertically adjustable manner,

wherein a first carrier means and a second carrier means are provided which are connected to each other via a transverse member, and

wherein the ground removal unit is arranged in an adjustable manner below the transverse member,

wherein the content of the first and second substances,

at least one pivot joint is provided on the cross member, having a substantially vertical pivot axis,

wherein the pivot joint is adapted to adjust the two carrier tools relative to each other.

2. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

the ground removal unit is a partition wall cutter with at least one pair of cutting wheels which can be driven in rotation about a horizontal axis of rotation.

3. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

the ground removal unit is suspended from at least one support line.

4. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

the ground removal unit is connected to at least one supply pipe and/or at least one cable.

5. A partition wall assembly as claimed in claim 3,

wherein the content of the first and second substances,

at least one rope drum is provided for the at least one support rope and/or at least one cable and at least one pipe drum is provided for the at least one supply pipe.

6. A partition wall assembly as claimed in claim 5,

wherein the content of the first and second substances,

the rope drum is rotatably supported on the first carrier means and the tube is rotatably supported on the second carrier means.

7. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

at least one carrier tool has a lower carriage on which an upper carriage is rotatably supported.

8. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

at least one of the carrier means is designed as a tracked vehicle with its own drive.

9. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

one or both carrier means are provided with an operating unit.

10. The partition wall assembly of claim 1,

wherein the content of the first and second substances,

at least one mobile operating unit is provided.

11. A method for producing a trench in the ground with a partition wall arrangement, wherein a ground removal unit is lowered into the ground and in doing so ground material is removed,

wherein the ground removal unit is arranged on a cross member between a first carrier tool and a second carrier tool, which carrier tools are connected to each other via the cross member,

wherein the content of the first and second substances,

for the adjustment of the two carrier tools relative to each other, at least one pivot joint with a substantially vertical pivot axis is arranged on the transverse member.

12. The method of claim 11, wherein the first and second light sources are selected from the group consisting of,

wherein the content of the first and second substances,

the grooves are implemented in tunnels, rails or other spaces with limited roof height.

13. The method of claim 11, wherein the first and second light sources are selected from the group consisting of,

wherein the content of the first and second substances,

a partition or cut-off wall is formed, wherein the trench is designed in a continuous manner and filled with a hardenable substance.

14. The method of claim 11, wherein the first and second light sources are selected from the group consisting of,

wherein the partition means is according to claim 1.