Shield tunnel compaction grouting equipment

Abstract

The utility model discloses a shield tunnel compaction grouting device which comprises an electric drive trolley, a first air cylinder and a mortar pump are fixed to the upper surface of the electric drive trolley, a connecting plate is connected to the extending end of the first air cylinder through a bearing, and a rotatable rotating ring is connected to the front face of the connecting plate. A supporting plate is fixedly connected to an opening in one end of the rotating ring, an electric push rod is fixed to the supporting plate, a fixing plate is fixed to the extending end of the electric push rod, a mortar spraying pipe is inserted and fixed to the fixing plate, a mortar conveying hose is connected to the inner end of the mortar spraying pipe, and the bottom end of the mortar conveying hose is connected with the discharging end of a mortar pump; second air cylinders are further fixed to the four corners of the bottom of the electric drive trolley, and base plates are fixed to the extending ends of the second air cylinders. The compaction grouting equipment for the shield tunnel not only is convenient to transfer quickly, but also is convenient to support firmly, and has relatively high flexibility, so that efficient compaction grouting is realized.

Description

Technical Field

[0001] The utility model relates to the field of tunnel compaction grouting equipment, in particular to shield tunnel compaction grouting equipment. Background Art

[0002] Shield tunneling is a fully mechanized construction method in the underground excavation method. It pushes the shield machine into the ground, and uses the shield shell and segments to support the surrounding rock to prevent collapse into the tunnel. At the same time, a cutting device is used to excavate the soil in front of the excavation face, and the soil is transported out of the cave by excavation machinery. It is then pressurized and pushed forward at the rear by jacks, and precast concrete segments are assembled to form a mechanized construction method of the tunnel structure.

[0003] Shield tunnel compaction grouting refers to the process of pouring a very thick slurry into holes drilled in the foundation soil in advance and squeezing it towards the soil, forming slurry bubbles at the grouting site. The diffusion of the slurry compresses the surrounding soil, and the slurry completely replaces the soil within the grouting range. There is a large plastic deformation zone in the vicinity of the grouting, and the soil in the area far from the slurry bubble undergoes elastic deformation, thereby significantly increasing the density of the soil. The current shield tunnel compaction grouting equipment is not convenient for rapid transfer and firm support, and it is not convenient to quickly and firmly insert the mortar nozzle into holes in different directions. It has poor flexibility and is not conducive to efficient compaction grouting operations.

[0004] In order to solve the above problems, we propose a shield tunnel compaction grouting equipment to improve the shortcomings of the existing technology. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a shield tunnel compaction grouting equipment. In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model discloses a shield tunnel compaction grouting equipment, comprising an electric-driven trolley, an upper surface of which is fixed with a cylinder 1 and a mortar pump, a protruding end of the cylinder 1 is connected to a connecting plate via a bearing, a rotatable swivel is connected to the front of the connecting plate, a support plate is fixedly connected to the opening at one end of the swivel, an electric push rod is fixed on the support plate, a fixing plate is fixed on the protruding end of the electric push rod, and a mortar nozzle is inserted and fixed on the fixing plate, the inner end of the mortar nozzle is connected to a mortar delivery hose, the bottom end of the mortar delivery hose is connected to the discharge end of the mortar pump, and a cylinder 2 is also fixed at the four corners of the bottom of the electric-driven trolley, and a base plate is fixed on the protruding end of the cylinder 2.

[0007] Preferably, a controller is also provided on the handle of the electric-driven trolley, and the controller is electrically connected to the driving motor, cylinder 1, mortar pump, electric push rod and cylinder 2 of the electric-driven trolley.

[0008] Preferably, the four cylinders operate synchronously.

[0009] Preferably, a plurality of baffles are evenly fixed between the inner walls on both sides of the swivel, and the mortar delivery hose passes through the bottom of the baffles and is wrapped around the swivel.

[0010] Preferably, a handle is fixedly connected to the side of the swivel directly facing the support plate.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0012] An electric-driven trolley is used to move the shield tunnel compaction grouting equipment. Cylinders 2 are provided at the four corners of the bottom of the shield tunnel compaction grouting equipment, and a base plate is provided on the protruding end of cylinder 2. When using this equipment for compaction grouting, cylinder 2 can be extended to allow the base plate to be firmly pressed on the ground, which can stabilize the electric-driven trolley and improve the overall stability. The electric-driven trolley can also be used to push the equipment for rapid movement. The height and direction of the mortar nozzle are adjusted by combining cylinder 1, swivel and electric push rod, so that it can be quickly and firmly inserted into holes in different directions. The shield tunnel compaction grouting equipment with this structural design is convenient for rapid transfer and firm support, and has strong flexibility, thereby achieving efficient compaction grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when performing compaction grouting operation;

[0016] Figure 3 It is a partial three-dimensional structural diagram of the transfer ring of the utility model.

[0017] In the figure: 1. Electric-driven trolley; 2. Cylinder 1; 3. Mortar pump; 4. Bearing; 5. Connecting plate; 6. Swivel; 7. Support plate; 8. Electric push rod; 9. Fixed plate; 10. Mortar nozzle; 11. Mortar delivery hose; 12. Cylinder 2; 13. Base plate; 14. Controller; 15. Gear lever; 16. Turn handle. DETAILED DESCRIPTION

[0018] 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.

[0019] Example

[0020] like Figure 1-3 The figure shows a shield tunnel compaction grouting equipment, comprising an electric-driven trolley 1, a cylinder 2 and a mortar pump 3 are fixed on the upper surface of the electric-driven trolley 1, a connecting plate 5 is connected to the protruding end of the cylinder 2 through a bearing 4, a rotatable swivel 6 is connected to the front of the connecting plate 5, a support plate 7 is fixed to the opening at one end of the swivel 6, an electric push rod 8 is fixed on the support plate 7, a fixing plate 9 is fixed on the protruding end of the electric push rod 8, and a mortar nozzle 10 is inserted and fixed on the fixing plate 9, the inner end of the mortar nozzle 10 is connected to a mortar delivery hose 11, the bottom end of the mortar delivery hose 11 is connected to the discharge end of the mortar pump 3, and a cylinder 2 12 is also fixed at the four corners of the bottom of the electric-driven trolley 1, and a base plate 13 is fixed on the protruding end of the cylinder 2 12, forming an integrated shield tunnel compaction grouting equipment, which is convenient for rapid transfer and firm support, and has strong flexibility, thereby achieving efficient compaction grouting.

[0021] In this embodiment, a controller 14 is also provided on the handle of the electric-driven trolley 1, and the controller 14 is electrically connected to the driving motor, cylinder 1 2, mortar pump 3, electric push rod 8 and cylinder 2 12 of the electric-driven trolley 1, so as to facilitate the operation of the equipment.

[0022] In this embodiment, the four cylinders 12 operate synchronously to ensure that the electric-driven trolley 1 is lifted and lowered smoothly.

[0023] In this embodiment, a plurality of baffles 15 are evenly fixed between the inner walls on both sides of the swivel 6, and the mortar delivery hose 11 passes through the bottom of the baffle 15 and is wrapped around the swivel 6. When the direction of the mortar nozzle 10 is adjusted, the mortar delivery hose 11 will not be bent, thereby ensuring that the mortar delivery hose 11 is unobstructed.

[0024] In this embodiment, a turning handle 16 is fixedly connected to the side of the rotating ring 6 directly facing the supporting plate 7, so as to facilitate manual adjustment of the direction of the mortar nozzle 10.

[0025] The principle and advantages of this utility model: Connect the controller 14 to the power supply, and then Figure 2As shown, the electric trolley 1 is used to push the equipment into the tunnel and stop near the grouting hole. Then, the air cylinder 2 12 is turned on to extend it, so that the base plate 13 is supported on the ground and the rollers of the electric trolley 1 are off the ground, thereby firmly supporting the electric trolley 1 to avoid movement due to collision. Then, the mortar pump 3 is connected to the slurry supply pipe, and then the air cylinder 1 2 is turned on to push the swivel 6 up, and the height of the electric push rod 8 on the connecting plate 5 is adjusted. At the same time, the mortar nozzle 10 also rises accordingly. The air cylinder 2 12 can also slightly raise and lower the height of the swivel 6, which is helpful for flexible height adjustment. Then the worker holds the handle 16 with both hands and turns it. The movable ring 6 adjusts the direction of the mortar nozzle 10, extends the electric push rod 8 to insert the mortar nozzle 10 into the grouting hole, and finally turns on the mortar pump 3 to send the filler into the grouting hole at high pressure, thereby performing the compaction grouting operation. After the grouting is completed, the mortar pump 3 is turned off, the electric push rod 8 is retracted, the mortar nozzle 10 is pulled out of the grouting hole, and then the cylinder 2 12 is retracted to raise the base plate 13, and the rollers of the electric-driven trolley 1 are allowed to touch the ground, and the equipment can be pushed to move. The shield tunnel compaction grouting equipment using this structural design is convenient for rapid transfer and firm support, and has strong flexibility, thereby achieving efficient compaction grouting.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A shield tunnel compaction grouting device, comprising an electric powered trolley (1), characterized in that: The upper surface of the electric-driven trolley (1) is fixed with a cylinder 1 (2) and a mortar pump (3), the protruding end of the cylinder 1 (2) is connected to a connecting plate (5) through a bearing (4), the front of the connecting plate (5) is connected to a rotatable swivel (6), the opening of one end of the swivel (6) is fixedly connected to a support plate (7), an electric push rod (8) is fixed to the support plate (7), the protruding end of the electric push rod (8) is fixed with a fixing plate (9), and a mortar nozzle (10) is inserted and fixed on the fixing plate (9), the inner end of the mortar nozzle (10) is connected to a mortar conveying hose (11), the bottom end of the mortar conveying hose (11) is connected to the discharge end of the mortar pump (3), and the four corners of the bottom of the electric-driven trolley (1) are also fixed with a cylinder 2 (12), and the protruding end of the cylinder 2 (12) is fixed with a base plate (13).

2. The shield tunnel compaction grouting equipment according to claim 1, characterized in that: A controller (14) is also provided on the push handle of the electric-driven trolley (1), and the controller (14) is electrically connected to the driving motor, cylinder 1 (2), mortar pump (3), electric push rod (8) and cylinder 2 (12) of the electric-driven trolley (1).

3. The shield tunnel compaction grouting equipment according to claim 2, characterized in that: The four cylinders (12) operate synchronously.

4. The shield tunnel compaction grouting equipment according to claim 1, characterized in that: A plurality of baffles (15) are evenly fixed between the inner walls on both sides of the rotating ring (6), and the mortar delivery hose (11) passes through the bottom of the baffles (15) and is wound around the rotating ring (6).

5. The shield tunnel compaction grouting equipment according to claim 1, characterized in that: A turning handle (16) is fixedly connected to the side of the rotating ring (6) directly facing the supporting plate (7).

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