Dynamic counterweight vehicle in tunnel for anti-floating measures in pipe jacking tunnel construction

Abstract

The present invention relates to a counterweight vehicle used in a tunnel, a dynamic counterweight vehicle in a tunnel for anti-floating measures in pipe jacking tunnel construction. The invention aims to solve the technical defect of few anti-floating measures in pipe jacking tunnel construction in the prior art. The bottom of the present invention is slidably mounted on the travel trolley track in the tunnel, including at least two load-bearing boxes, a connecting oil cylinder group is provided between the load-bearing boxes, a hydraulic weighing shoe is provided between the load-bearing boxes and the tunnel, a counterweight block is installed in the load-bearing box; an isolation liquid tank is provided between the counterweight block and the load-bearing box, the isolation liquid tank is barrel-shaped, made of rubber, and is clamped between the load-bearing box and the counterweight block, and a liquid tank bracket is provided in the isolation liquid tank; a pipe and wire channel is provided between the load-bearing boxes, and the pipe and wire channel includes two pads installed between the load-bearing boxes. The advantages are: high flexibility, good anti-floating effect, and long equipment life.

Description

Technical Field

[0001] The invention relates to a counterweight vehicle used in a tunnel, in particular to an in-tunnel dynamic counterweight vehicle used as an anti-floating measure in pipe-jacking tunnel construction. Background Art

[0002] Tunnels are engineering structures buried in the ground, and are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mining tunnels. The tunnel conference held by the Organization for Economic Cooperation and Development in 1970 combined various factors and defined tunnels as: "a cavern with a cross-sectional area greater than 2 square meters that is built for a certain purpose and in any way under the ground with a specified shape and size." The anti-floating anchor rods used in tunnel construction, also called anti-floating piles, are a kind of anti-floating measure for underground structures in construction projects. Anti-floating anchor rods are different from general foundation piles and have their own unique properties. The biggest difference from general foundation piles is that foundation piles are usually compression piles, and the pile body bears the pressure of the building load. The force is transmitted from the top of the pile to the bottom of the pile, and the force of the pile body changes with the change of the building load; while anti-floating piles are tensile piles that bear tensile force. The force of ordinary anti-floating piles is also transmitted from the top of the pile to the bottom of the pile, and the force of the pile body changes with the change of the groundwater level, but the force mechanism of the two is exactly opposite.

[0003] Regarding the anti-floating construction of pipelines, in the published Chinese patent documents, the patent with application number 2019108014772, entitled A pipeline anti-displacement and anti-floating mechanism and pipeline anti-floating construction method, uses diagonal pipes to assist in positioning to form a stable connection between the internal components of the pipeline to achieve the anti-floating effect. However, the applicant believes that the structure still has the problem of difficult recycling and low equipment life.

[0004] In summary, we can know that anti-floating measures are widely used in tunnel construction, and their purpose is to ensure the safety of tunnel structure. However, the current anti-floating measures for tunnels are mainly focused on the design of anti-floating anchors, and the means are single. In particular, when each set of pipe segments is installed, counterweights need to be added to the pipe segments in real time. This process takes a long time and is inefficient, making it difficult to meet construction needs. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of low installation efficiency and poor effect of anti-floating equipment during pipe segment installation in the prior art.

[0006] The specific scheme of the present invention is: designing an in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction, the bottom of which is slidably mounted on a walking trolley track in the tunnel, comprising at least two bearing boxes, a connecting cylinder group is arranged between the bearing boxes, a hydraulic bearing shoe is arranged between the bearing boxes and the tunnel, and a counterweight block is mounted in the bearing box;

[0007] An isolation liquid tank is provided between the counterweight block and the load-bearing box. The isolation liquid tank is barrel-shaped, made of rubber, and is clamped between the load-bearing box and the counterweight block. A liquid tank bracket is provided in the isolation liquid tank.

[0008] A pipe and wire channel is provided between the load-bearing boxes. The pipe and wire channel includes two pads installed between the load-bearing boxes. Hollow through holes are provided in an array on the side of the load-bearing box.

[0009] In a specific implementation, a cylindrical roller is installed on the bottom surface of the tube and wire channel, and the axis of the cylindrical roller is perpendicular to the side surface of the tube and wire channel.

[0010] In a specific implementation, the hydraulic load-bearing shoe includes a lateral support cylinder and an oblique travel cylinder installed with two central axes at an staggered angle of 30-120°. The piston ends of the lateral support cylinder and the oblique travel cylinder are connected via a hinge connection, and the hinge connection is located on the load-bearing box. The bottom of the cylinder body of the lateral support cylinder and the oblique travel cylinder are respectively connected to a bottom positioning block via a rotating shaft, and the bottom positioning block is mounted against the side of the tunnel.

[0011] In a specific implementation, the counterweight block is in a rectangular shape, and a square recess is provided on its edge. One end of the connecting block is clamped in the square recess, and the other end is clamped on the side frame of the load-bearing box.

[0012] In a specific implementation, the liquid silo support comprises at least 8 groups of vertical poles evenly distributed in the isolated liquid silo, the vertical poles are equipped with floating balls of different densities, and horizontal connecting rods are arranged between the floating balls of the same density between the vertical poles to form a floating horizontal fixing ring (14).

[0013] Alternatively, the isolation liquid tank is of square barrel type, including frame tanks made of rubber at four corners and an adjustment tank in the middle, wherein the adjustment tank in the middle includes wave-shaped supports and a pillow-shaped deformation tank installed between the wave-shaped supports.

[0014] At least three slots are arranged on the side of the load-bearing box, and the side of the pad is clamped in the slots.

[0015] The installation position of the top pad is flush with the horizontal position of the top counterweight to form a construction work platform. The connecting cylinder group includes four connecting cylinders with piston ends fixed at one point, and the bottom surface of the connecting cylinder is fixed to the side of the load-bearing box via a hinge connection.

[0016] The beneficial effects of the present invention are:

[0017] 1. High flexibility, easy to assemble, transfer and disassemble;

[0018] 2. The designed isolation liquid tank can be filled with water to achieve flexible connection between devices. On the one hand, it prolongs the service life of the equipment, and on the other hand, it has a variety of combinations and provides auxiliary strength guarantee for the equipment;

[0019] 3. The hydraulic weighing shoe can realize automatic entry and exit, which greatly liberates manpower and improves construction efficiency;

[0020] 4. The whole equipment leaves space for pipelines, which does not affect the front and rear processes at all. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of the structure of the present invention;

[0022] Figure 2 It is a front view of the structure of the present invention;

[0023] Figure 3 It is a cross-sectional view in the side view direction;

[0024] Figure 4 yes Figure 3 Middle AA section view;

[0025] Figure 5 It is a schematic diagram of the internal structure of the isolation liquid tank;

[0026] Figure 6 It is a top view of the isolation liquid tank;

[0027] Figure 7 It is a top view of another structural isolation liquid tank;

[0028] Figure 8 yes Figure 7 The front view of the structure isolation liquid tank shown;

[0029] The names of the components in the figure are: 1. Traveling trolley track; 2. Load-bearing box; 3. Connecting cylinder group; 4. Counterweight block; 5. Pad; 6. Lateral support cylinder; 7. Oblique travel cylinder; 8. Cylindrical roller; 9. Bottom positioning block; 10. Wave-shaped support; 11. Float; 12. Frame bin; 13. Adjustment bin; 14. Horizontal fixing ring; 15. Connecting block. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] A dynamic counterweight vehicle in the tunnel for anti-floating measures in pipe jacking tunnel construction, see Figures 1 to 4The bottom is slidably mounted on the trolley track 1 in the tunnel, and includes at least two load-bearing boxes 2, a connecting cylinder group 3 is provided between the load-bearing boxes 2, a hydraulic load-bearing shoe is provided between the load-bearing box 2 and the tunnel, and a counterweight block 4 is installed inside the load-bearing box 2;

[0032] An isolation liquid tank is provided between the counterweight block 4 and the load-bearing box 2. The isolation liquid tank is barrel-shaped, made of rubber, and is clamped between the load-bearing box 2 and the counterweight block 4. A liquid tank bracket is provided in the isolation liquid tank;

[0033] The two load-bearing boxes are provided with a pipe and wire channel, and the pipe and wire channel includes two pads 5 installed between the load-bearing boxes, and the side of the load-bearing box is provided with hollow through holes in an array. The interior of the isolation liquid tank can be filled with liquid, which increases the weight of the equipment on the one hand, and forms a flexible support to protect the frame equipment itself on the other hand. The hollow design facilitates the deformation of the rubber inside. On the one hand, it increases the volume of the isolation liquid tank. On the other hand, the protruding isolation liquid tank is equivalent to being mounted in the load-bearing box, and the shear force between them is large, which effectively prevents slippage and falling off. On the other hand, it appropriately protrudes from the load-bearing box, adding a layer of flexible support to the outside of the load-bearing box to avoid collision with other equipment, further extending the service life of related equipment.

[0034] A cylindrical roller 8 is installed on the bottom surface of the pipe and wire channel, and the axis of the cylindrical roller 8 is perpendicular to the side surface of the pipe and wire channel, so as to form a rolling support.

[0035] The hydraulic load-bearing shoe includes a lateral support cylinder 6 and an oblique travel cylinder 7 installed with two central axes at an staggered angle of 30-120°. The piston ends of the lateral support cylinder 6 and the oblique travel cylinder 7 are connected via a hinge connection, and the hinge connection is on the load-bearing box 2. The bottom of the cylinder body of the lateral support cylinder 6 and the oblique travel cylinder 7 are respectively connected to a bottom positioning block 9 via a rotating shaft, and the bottom positioning block 9 is installed against the side of the tunnel.

[0036] The counterweight block 4 is a rectangular block with a square concave platform on its edge. One end of the connecting block 15 is clamped in the square concave platform, and the other end is clamped on the side frame of the load-bearing box 2. This design provides a connection between the counterweight block 4 and the load-bearing box 2. When the equipment tilts, the connecting block 15 can first pull and deform the side frame of the load-bearing box 2, which is convenient for the staff to observe and then perform equipment maintenance or pressurize the counterweight to ensure the anti-floating effect.

[0037] The liquid silo support comprises at least 8 groups of vertical poles evenly distributed in the isolated liquid silo, on which float balls 11 of different densities are mounted, and between the float balls 11 of the same density between the vertical poles, a transverse connecting rod is arranged to form a floating transverse fixing ring 14. The design of the float balls 11 can, on the one hand, help the staff to observe the position of the liquid surface, whether the liquid surface is parallel to the ground, and whether the position needs to be adjusted, and on the other hand, it is convenient to strengthen the skeleton function of the liquid silo support support.

[0038] The installation position of the top pad 5 is flush with the horizontal position of the top counterweight 4 to form a construction work platform.

[0039] The connecting cylinder group 3 includes four connecting cylinders whose piston ends are fixed at one point, and the bottom surfaces of the connecting cylinders are fixed to the side surfaces of the load-bearing box 2 via hinged connections.

[0040] Example 2

[0041] The principle of this embodiment is the same as that of embodiment 1, except that Figure 7 and Figure 8 The isolation liquid tank is a square barrel type, including a frame tank 12 made of rubber at four corners and an adjustment tank 13 in the middle. The adjustment tank 13 in the middle includes a wave-shaped support 10 and a pillow-shaped deformation tank installed between the wave-shaped supports 10. The wave-shaped design is convenient for using its own arch to provide a relatively strong support. For example, the two upward arches in the embodiment drawings still have good support performance after neutralizing the reaction force of a downward arch.

[0042] The side of the load-bearing box 2 is provided with at least three slots, and the side of the pad 5 is clamped in the slots. The number of the slots is greater than the number of the pads 5. During installation, the appropriate position and number can be selected in combination with the pipeline position and the counterweight height to achieve on-site matching.

[0043] The position of the counterweight car is calculated according to the width of the inner wall of the pipe segment, and rails are laid at the bottom of the inner wall of the completed jacking hole. The length of the rails should be consistent with the length of the pipe segment.

[0044] The counterweight vehicles one and two are hoisted into the hole, and wheels are installed at the bottom of the counterweight vehicles, which are seated on the rails at predetermined positions.

[0045] The respective support shoe cylinder group is installed on the counterweight vehicle. The support shoe cylinder group consists of a transverse support cylinder 6 and an oblique travel cylinder 7. The travel mode is similar to the hydraulic propulsion mode at the top of the shield machine.

[0046] The counterweight vehicle 1 and the 2nd counterweight vehicle are connected in an articulated manner by using the connecting oil cylinder group 3. The distance between the counterweight vehicle 1 and the 2nd counterweight vehicle is controlled by adjusting the extension of the connecting oil cylinder to adapt to the inner wall width of the pipe segment. The scope of use is expanded.

[0047] The counterweight vehicles 1 and 2 are connected with a pad 5A above the connecting cylinder group 3 to form a platform.

[0048] A pad 5B is laid at the level of the frame above the counterweight vehicle to connect the first and second counterweight vehicles to form a platform.

[0049] The space formed by the two pads 5 is used as a special channel for various supporting pipelines of the pipe jacking machine. The rolling friction formed by the cylindrical roller 8 can guide the translation of the pipeline.

[0050] When in use, according to the calculated counterweight, the counterweight block 4 is transported to the frame of the counterweight vehicle by a forklift. Each time a set of pipe sections is pushed in, a set of counterweight vehicles is installed at the jacking hole. When all pipe sections are pushed in, the counterweight vehicles are withdrawn and disassembled.

[0051] When the pipe segment needs to be withdrawn, the horizontal support hydraulic cylinder of the support shoe group is used to push the support shoe against the inner wall of the pipe segment, and the oblique travel cylinder 7 is extended to move the counterweight vehicle. After multiple trips, the counterweight vehicle is transported to the tunnel entrance. Then the counterweight blocks 4 are transported out one by one, and the counterweight vehicle is disassembled and transported out in blocks.

[0052] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dynamic counterweight vehicle in a tunnel for anti-floating measures in pipe jacking tunnel construction, characterized in that: The bottom is slidably mounted on a trolley track (1) in the tunnel, and comprises at least two load-bearing boxes (2), a connecting oil cylinder group (3) is provided between the load-bearing boxes (2), a hydraulic load-bearing shoe is provided between the load-bearing box (2) and the tunnel, a counterweight block (4) is installed inside the load-bearing box (2), and hollow through holes are provided in an array on the side surface of the load-bearing box; An isolation liquid tank is provided between the counterweight block (4) and the load-bearing box (2); the isolation liquid tank is barrel-shaped, made of rubber, and is clamped between the load-bearing box (2) and the counterweight block (4); a liquid tank bracket is provided in the isolation liquid tank; A pipe and wire passage is provided between the load-bearing boxes (2), and the pipe and wire passage comprises two pads (5) installed between the load-bearing boxes.

2. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: A cylindrical roller (8) is installed on the bottom surface of the tube and wire channel, and the axis of the cylindrical roller (8) is perpendicular to the side surface of the tube and wire channel.

3. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: The hydraulic load-bearing shoe comprises a transverse support cylinder (6) and an oblique travel cylinder (7) which are installed with two central axes at an intersecting angle of 30-120 degrees, the piston ends of the transverse support cylinder (6) and the oblique travel cylinder (7) are connected via a hinge connection, and the hinge connection is located on the load-bearing box (2), and the bottom of the cylinder body of the transverse support cylinder (6) and the oblique travel cylinder (7) are respectively connected to a bottom positioning block (9) via a rotating shaft, and the bottom positioning block (9) is mounted on the side of the tunnel.

4. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: The counterweight block (4) is in the shape of a rectangular parallelepiped, and a square recess is provided on its edge. One end of the two ends of the connecting block (15) is clamped in the square recess, and the other end is clamped on the side frame of the load-bearing box (2).

5. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 4, characterized in that: The liquid silo support comprises at least 8 groups of vertical poles evenly distributed in the isolated liquid silo, the vertical poles are provided with floating balls (11) of different densities, and horizontal connecting rods are provided between the floating balls (11) of the same density between the vertical poles to form a floating horizontal fixing ring (14).

6. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: The isolation liquid tank is of a square barrel type, comprising frame tanks (12) at four corners made of rubber and an adjustment tank (13) in the middle, wherein the adjustment tank (13) in the middle comprises wave-shaped supports (10) and a pillow-shaped deformation tank installed between the wave-shaped supports (10).

7. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: At least three slots are provided on the side of the load-bearing box (2), and the side of the pad (5) is mounted in the slots.

8. The in-hole dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: The installation position of the top pad (5) is flush with the horizontal position of the top counterweight (4) to form a construction work platform.

9. The in-tunnel dynamic counterweight vehicle for anti-floating measures in pipe jacking tunnel construction as claimed in claim 1, characterized in that: The connecting oil cylinder group (3) comprises four connecting oil cylinders whose piston ends are fixed at one point, and the bottom surfaces of the connecting oil cylinders are fixed to the side surfaces of the load-bearing box (2) via hinged connections.

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