Slurry pipeline extending device for slurry shield split starting synchronous grouting

Abstract

The invention discloses a slurry pipeline extension device for slurry shield split starting synchronous grouting. The slurry pipeline extension device comprises a frame main body, wheels are arranged at the bottom of the frame main body; a coil pipe mechanism is arranged on one side of the frame main body; the pipe coiling mechanism comprises a movable support and a pipe coiling assembly. The movable bracket is arranged on the frame main body in a sliding manner; the two sides of the movable support are each provided with a coil pipe assembly used for limiting and supporting the slurry hose. And a mortar tank is arranged on the other side of the frame main body. By arranging the pipe coiling mechanism, a slurry pipeline is convenient and rapid to disassemble and assemble, the clearance distance of a tunnel is guaranteed, the frictional loss of the pipeline on the ground can be reduced, a fixed placing position is provided for a slurry hose, the extension efficiency of the slurry pipeline is improved, meanwhile, the length of the synchronous grouting pipeline can be reduced by arranging the mortar tank on the frame main body, and the construction efficiency is improved. The blockage probability of the synchronous grouting pipeline is reduced, the manual repeated pipe communicating time is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shield construction machinery and equipment, and more specifically to a mud pipeline extension device for split-body initial synchronous grouting of a mud-water shield. Background Art

[0002] The full-face tunnel boring machine is also commonly known as a shield machine. It is a special engineering machine used for tunnel excavation. The slurry shield machine is a common machine suitable for tunnel construction in complex strata. The slurry shield machine stabilizes the excavation surface by pressurizing mud. There is a sealing baffle behind the cutter head, so that a mud-water silo filled with mud is formed between the sealing baffle and the excavation surface. The slag excavated by the shield machine cutter head is mixed with the mud and transported to the outside of the tunnel by the mud pump for separation of the slag and mud. The separated mud is reused.

[0003] At present, when the slurry shield machine needs to be started in parts due to site restrictions, the No. 2 trolley carrying the mortar tank cannot be hoisted, resulting in the hose being usually disconnected after being dragged to a taut state during excavation, and the slurry inlet and outlet pipelines are extended. The mud pipe is connected to the shield machine pipeline through the hose, thereby continuously extending the synchronous grouting pipeline for synchronous grouting, which has the following disadvantages: 1. As the shield machine continues to advance, the extended grouting pipeline becomes longer and longer, and is very easy to be blocked, requiring operators to spend a lot of time on repeated pipe clearing operations. If the pipeline cannot be cleared, the shield will be shut down; 2. Since the mud pipeline cannot be extended normally, the hose of the mud pipeline is dragged with the shield body and its position is not fixed, affecting the clearance in the tunnel; 3. It takes a lot of time to fix and place the position of the mud pipeline hose, which seriously restricts the efficiency of shield excavation.

[0004] Therefore, how to provide a mud pipeline extension device for split-start synchronous grouting of a slurry shield that can improve the extension efficiency of the slurry inlet and outlet pipelines is one of the technical problems that urgently need to be solved in this field. Summary of the invention

[0005] In view of this, the present invention provides a mud pipeline extension device for split-start synchronous grouting of a mud-water shield, the purpose of which is to solve the problems existing in the prior art.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A mud pipeline extension device for split-start synchronous grouting of a mud-water shield comprises: a frame body; wheels are provided at the bottom of the frame body; a coil mechanism is provided on one side of the frame body; the coil mechanism comprises a movable bracket and a coil assembly; the movable bracket is slidably arranged on the frame body; the coil assembly for limiting the mud hose is provided on both sides of the movable bracket; a mortar tank is provided on the other side of the frame body.

[0008] The coil assembly includes a plurality of support tubes; the plurality of support tubes are vertically arranged on the movable bracket.

[0009] Preferably, the support tube is fixedly connected to the movable bracket via a connecting flange.

[0010] Preferably, sliding blocks are provided at the bottom and the top of the movable bracket; correspondingly, guide rails adapted to the sliding blocks are provided on the frame body.

[0011] Preferably, a frame hanging lug is provided on the top of the frame body.

[0012] Preferably, a traction frame is provided on the front side of the frame body.

[0013] Preferably, the frame body includes a first frame and a second frame which are symmetrically arranged on the left and right; the wheels are provided at the bottom of the first frame and the second frame; the first frame and the second frame are connected by a crossbeam; the mortar tank and the coil mechanism are respectively arranged on the first frame and the second frame.

[0014] Compared with the prior art, the present invention has achieved the following technical effects:

[0015] 1) The present invention provides a coil mechanism, which makes the disassembly and assembly of the mud pipeline convenient and quick, ensures the tunnel clearance distance, reduces the friction loss of the pipeline on the ground, provides a fixed placement position for the mud hose, and improves the extension efficiency of the mud pipeline. At the same time, by providing a mortar tank on the frame body, the length of the synchronous grouting pipeline can be reduced, the probability of synchronous grouting pipeline blockage can be reduced, the time for manual repeated pipe clearing can be reduced, and the construction efficiency can be improved;

[0016] 2) The present invention has the advantages of simple structure, easy manufacture, controllable size according to actual needs and convenient lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a mud pipeline extension device for split-body synchronous grouting of a mud-water shield according to the present invention;

[0018] Figure 2 It is a top view of a slurry pipeline extension device for split-body synchronous grouting of a slurry shield according to the present invention;

[0019] Figure 3 It is a side sectional view of a slurry pipeline extension device for split-body initial synchronous grouting of a slurry shield according to the present invention;

[0020] Figure 4 It is a schematic diagram of a slurry pipeline extension device for split-body initial synchronous grouting of a slurry shield in a tunnel according to the present invention;

[0021] Figure 5 - Fig.10 This is a schematic diagram of the construction process for extending the mud pipeline;

[0022] In the figure: 1. frame body; 101. first frame; 102. second frame; 103. crossbeam; 2. wheels; 3. coiling mechanism; 301. mobile bracket; 302. support pipe; 4. mortar tank; 5. frame lifting eye; 6. traction frame; 7. mud hose; 8. anti-collision mechanism; 9. shield trolley; 10. winch; 11. hand hoist; 12. segment lifting hole; 13. mud hard pipe; 14. battery car; 15. fixed pulley; 16. wire rope. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example

[0025] Reference Figure 1-10 As shown, the present invention discloses a mud pipeline extension device for split-start synchronous grouting of a mud-water shield, comprising: a frame body 1; a wheel 2 is arranged at the bottom of the frame body 1 to facilitate the movement of the device; a coil mechanism 3 is arranged on one side of the frame body 1; the coil mechanism 3 comprises a movable bracket 301 and a coil assembly; the movable bracket 301 is slidably arranged on the frame body 1; coil assemblies for limiting support of a mud hose 7 are arranged on both sides of the movable bracket 301; a mortar tank 4 is arranged on the other side of the frame body 1; when in use, the mud hose 7 is wound around the coil assembly, and when the shield machine excavates forward, the movable bracket 301 moves backward under the backward force of the mud hose 7, so that the coil mechanism 3 can support the mud hose, reduce the drag friction of the mud hose, coil and protect the mud hose, and at the same time, the mortar tank moves forward as the shield machine excavates forward, thereby reducing the length of the synchronous grouting pipeline, reducing the probability of blockage of the synchronous grouting pipeline, and thus reducing the time for manual repeated pipe clearing.

[0026] The above technical solution makes the disassembly and assembly of the mud pipeline convenient and quick by setting up a coil mechanism, ensures the tunnel clearance distance, reduces the friction loss of the pipeline on the ground, provides a fixed placement position for the mud hose, and improves the extension efficiency of the mud pipeline. At the same time, by setting a mortar tank on the frame body, the length of the synchronous grouting pipeline can be reduced, the probability of synchronous grouting pipeline blockage can be reduced, the time for manual repeated pipe clearing can be reduced, and the construction efficiency can be improved.

[0027] In this embodiment, the coil assembly includes four support tubes 302 ; the four support tubes 302 are vertically arranged on the movable bracket 301 , and the four support tubes 302 are symmetrically arranged in pairs.

[0028] In this embodiment, the support tube 302 is fixedly connected to the movable bracket 301 via a connecting flange.

[0029] In this embodiment, sliding blocks are provided at the bottom and the top of the movable bracket 301; correspondingly, guide rails matching the sliding blocks are provided on the frame body 1.

[0030] In this embodiment, a frame hanging lug 5 is provided on the top of the frame body 1 .

[0031] In this embodiment, a traction frame 6 is provided on the front side of the frame body 1 .

[0032] In this embodiment, the frame body 1 includes a first frame 101 and a second frame 102 which are symmetrically arranged on the left and right; wheels 2 are provided at the bottom of the first frame 101 and the second frame 102; the first frame 101 and the second frame 102 are connected by a crossbeam 103; the mortar tank 4 and the coil mechanism 3 are respectively arranged on the first frame 101 and the second frame 102.

[0033] In this embodiment, anti-collision mechanisms 8 are provided on both the front and rear sides of the top of the second frame 102 .

[0034] In this embodiment, the anti-collision mechanism 8 is a buffer.

[0035] In this embodiment, the main structure of the first frame 101, the main structure of the second frame 102 and the crossbeam are made of steel sections, which has the advantages of simple manufacturing, controllable frame body size according to actual needs and convenient lifting.

[0036] In this embodiment, the wheels 2 are shield-type wheelsets.

[0037] In some other embodiments, the number of support tubes 302 can be designed according to actual conditions.

[0038] The construction method of this device:

[0039] Step 1, on-site construction preparation, including the following steps: Step 1.1, prepare a winch 10 and three hand chain hoists 11; Step 1.2, arrange a winch 10 at the starting point of the shield machine. When the mud pipeline needs to be extended, a fixed pulley 15 is fixed on the right column of the rear of the shield trolley 9 with a wire rope 16, and the wire rope 16 of the winch 10 is passed around the fixed pulley 15 to assist in pulling the mud pipeline on the frame body 1 located behind the shield trolley 9; Step 1.3, hang two hand chain hoists 11 on the two mud hoses 7 (slurry inlet pipe and slurry discharge pipe) at the rear of the device respectively, and another hand chain hoist 11 is hung on the 3-point segment lifting hole 12. During the entire mud pipeline extension process, the positions of the three hand chain hoists 11 are never moved until the pipeline connection is completed and then removed;

[0040] Step 2, the mud pipeline extension construction, includes the following steps: Step 2.1, first close the mud valve, then fix the wire rope 16 connected to the winch 10 on the mud hose 7, and use the hand chain hoist 11 suspended on the pipe segment lifting hole 12 to lift one end of the pipeline to be extended (here refers to the mud hard pipe 13 connected to the mud hose 7) to a certain height; Step 2.2, after the previous step of preparation is completed, remove the bolts at the connection between the mud hose 7 and the mud hard pipe 13, and then use the winch to drag the joint position of the mud hose 7 to the coil mechanism 3; Step 2.3, use the battery car 14 to transport a section of the mud hard pipe 13 used to extend the mud pipeline to a suitable position, and use the two hand chain hoists 11 at the tail of the device to transport the section of the mud hard pipe 1 3, thereby lifting the section of the mud hard pipe 13 from the battery car 14; step 2.4, after the section of the mud hard pipe 13 is unloaded from the battery car, use the two hand-pulled hoists 11 at the rear of the device to lift the section of the mud hard pipe 13, so that one end of it slowly approaches the mud hard pipe 13 to be extended, and connects it with bolts, and then connects the other end with the mud hose with bolts; step 2.5, move the coil mechanism 3 to the front end of the device, and then open the mud valve to see if there is slurry leakage at both ends of the extended pipeline; step 2.6, if slurry leakage occurs at the pipeline connection, tighten the bolts. If there is no leakage, remove the hand-pulled hoist 11, the fixed pulley 15 and the wire rope 16 connected to the winch 10, and resume propulsion.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A slurry pipeline extension device for split-start synchronous grouting of a slurry shield, characterized in that: include: A vehicle frame body (1); wheels (2) are provided at the bottom of the vehicle frame body (1); a coil mechanism (3) is provided on one side of the vehicle frame body (1); the coil mechanism (3) comprises a movable bracket (301) and a coil assembly; the movable bracket (301) is slidably arranged on the vehicle frame body (1); the coil assembly for limiting the position of a mud hose (7) is provided on both sides of the movable bracket (301); a mortar tank (4) is provided on the other side of the vehicle frame body (1).

2. A slurry pipeline extension device for split-start synchronous grouting of a slurry shield according to claim 1, characterized in that: The coil assembly comprises a plurality of support tubes (302); the plurality of support tubes (302) are vertically arranged on the movable bracket (301).

3. A slurry pipeline extension device for split-start synchronous grouting of a slurry shield according to claim 2, characterized in that: The support tube (302) is fixedly connected to the movable bracket (301) via a connecting flange.

4. A slurry pipeline extension device for split-start synchronous grouting of a slurry shield according to claim 1, characterized in that: The bottom and top of the movable bracket (301) are both provided with sliding blocks; correspondingly, the frame body (1) is provided with guide rails adapted to the sliding blocks.

5. A slurry pipeline extension device for split-start synchronous grouting of a slurry shield according to claim 1, characterized in that: A frame hanging lug (5) is provided on the top of the frame body (1).

6. A slurry pipeline extension device for split-start synchronous grouting of a slurry shield according to claim 1, characterized in that: A traction frame (6) is provided on the front side of the frame body (1).

7. A slurry pipeline extension device for split-body synchronous grouting of a slurry shield according to claim 1, characterized in that: The frame body (1) comprises a first frame (101) and a second frame (102) which are symmetrically arranged on the left and right; the wheels (2) are arranged at the bottom of the first frame (101) and the second frame (102); the first frame (101) and the second frame (102) are connected via a crossbeam (103); the mortar tank (4) and the coil mechanism (3) are respectively arranged on the first frame (101) and the second frame (102).

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