Synchronous grouting device for shield tunnel construction

Abstract

The utility model provides a synchronous grouting device for shield tunnel construction. The synchronous grouting device for shield tunnel construction comprises a first engineering vehicle and a second engineering vehicle, a concrete conveying pump is fixedly installed at the top of the first engineering vehicle, and a booster pump is fixedly installed at the top of the second engineering vehicle. According to the synchronous grouting device for shield tunnel construction, the spraying pipe is arranged, when tunnel concrete grouting is carried out, concrete materials are injected into the mixing box, the concrete conveying pump is started, the concrete conveying pump can continuously inject concrete into the booster pump through the conveying pipe, and then the concrete materials are injected into the mixing box through the spraying pipe; and at the moment, the second engineering vehicle is moved, so that the second engineering vehicle can move and spray the concrete to the ground, the remote mobile grouting effect of the concrete is achieved, the problem that manual grouting of the concrete is strenuous due to the fact that a grouting device is large in size and difficult to move is solved, and the grouting convenience of tunnel construction is improved.

Description

Technical Field

[0001] The utility model relates to the field of grouting devices, in particular to a synchronous grouting device for shield tunnel construction. Background Technique

[0002] The shield method is a fully mechanized construction method in the subaqueous tunneling method. It is to push the shield machine underground, prevent the surrounding rock from collapsing into the tunnel through the shield shell and segment support, and at the same time use a cutting device to excavate the soil body in front of the excavation face, transport it out of the tunnel by an earth removal machine, and rely on jacks to apply pressure and push forward at the rear, and assemble precast concrete segments to form a tunnel structure. A mechanized construction method. In order to reduce and prevent ground settlement, during the shield tunneling process, sufficient grouting material should be injected synchronously behind the lining segment that has exited the shield tail as soon as possible to fill the annular building gap at the shield tail. In the existing technology, the synchronous grouting process mostly performs synchronous grouting operations by setting up a synchronous grouting machine. The tunnel construction distance is relatively long, and the synchronous grouting machine mostly has a separate storage tank. The grouting is carried out through a pump body and a conveying pipeline. As the tunnel construction progresses, when the grout needs to be replenished, the machine operation needs to be stopped, and the storage tank is transported to the grout replenishment point through a track for replenishment. After replenishment, it is moved to the construction end to start the machine for synchronous grouting, which cannot achieve continuous and stable grout transportation and reduces the overall construction efficiency.

[0003] In the existing technology, such as the "synchronous grouting device for shield tunnel construction" with the Chinese authorization announcement number: CN219774144U, which includes: a synchronous grouting system, the synchronous grouting system includes a main tank body, the main tank body is fixedly connected to the shield machine body, the main tank body is divided into two stirring chambers by a transverse plate, a grouting pipe is arranged on the main tank body, and the grouting pipe is fixedly communicated with the lower stirring chamber, a stirring component is arranged in the main tank body, and the two stirring chambers are respectively arranged corresponding to the stirring component; a raw material conveying system, the raw material conveying system includes a raw material storage tank, the raw material storage tank moves in the tunnel through a track, several storage chambers are arranged in the raw material storage tank, and several storage chambers are respectively used for storing different raw materials, and several storage chambers respectively convey the raw materials to the upper stirring chamber through a conveying component. The utility model has a simple structure, realizes the continuous production of grout and the stable supply of grout during the grouting process, avoids construction interruption, and improves the overall construction efficiency.

[0004] In the existing technology, when grouting for tunnel construction, due to the large volume of the grouting device and difficulty in moving, it is difficult to evenly discharge the concrete slurry to the construction position, which further leads to the problem that tunnel grouting construction is more laborious.

[0005] Therefore, it is necessary to provide a synchronous grouting device for shield tunnel construction to solve the above technical problems. Summary of the Utility Model

[0006] The utility model provides a synchronous grouting device for shield tunnel construction, which solves the problem that it is difficult to move due to the large volume of the grouting device, making it difficult to evenly discharge the concrete slurry to the construction position, and thus making the tunnel grouting construction more laborious.

[0007] To solve the above technical problems, a synchronous grouting device for shield tunnel construction provided by the utility model includes a first engineering vehicle and a second engineering vehicle. A concrete delivery pump is fixedly installed on the top of the first engineering vehicle, a booster pump is fixedly installed on the top of the second engineering vehicle, a spraying pipe is fixedly sleeved on the side of the booster pump, a support frame is fixedly connected to the top of the concrete delivery pump, a mixing tank is fixedly sleeved inside the support frame, a feed hopper is fixedly sleeved on the top of the mixing tank, a filter screen is fixedly sleeved inside the feed hopper, a delivery pipe is fixedly sleeved on the side of the concrete delivery pump, a mixing mechanism is arranged inside the mixing tank, a stabilizing mechanism is arranged at the bottom of the first engineering vehicle, and a connecting mechanism is arranged on the side of the first engineering vehicle.

[0008] Preferably, the spraying pipe is located in the exact middle of the side of the booster pump, and the front shape of the spraying pipe is an inverted Y shape.

[0009] Preferably, the bottom of the mixing tank is fixedly sleeved on the side of the concrete delivery pump, and the front shape of the mixing tank is conical.

[0010] Preferably, one end of the delivery pipe is fixedly sleeved on the side of the booster pump, and the material of the delivery pipe is rubber material.

[0011] Preferably, the number of the feed hoppers is two, and the two feed hoppers are symmetrically distributed with the mixing tank as the axis of symmetry.

[0012] Preferably, the material of the filter screen is stainless steel material, and the filter screen is adapted to the feed hopper.

[0013] Preferably, the mixing mechanism includes a rotating motor, the rotating motor is fixedly installed on the top of the mixing tank, and a stirring impeller is fixedly connected to the output shaft of the rotating motor.

[0014] Preferably, the stabilizing mechanism includes a hydraulic column, the hydraulic column is fixedly installed at the bottom of the first engineering vehicle, and an anti-slip tooth plate is fixedly connected to the bottom of the hydraulic column.

[0015] Preferably, the connecting mechanism includes a positioning column, the positioning column is fixedly connected to the side of the first engineering vehicle, and a connecting clamping column is movably sleeved on the side of the second engineering vehicle.

[0016] Compared with the related technology, a synchronous grouting device for shield tunnel construction provided by the utility model has the following beneficial effects:

[0017] The utility model provides a synchronous grouting device for shield tunnel construction. By setting a spraying pipe, when grouting the tunnel concrete, the concrete material is injected into the mixing box and the concrete delivery pump is started, so that the concrete delivery pump can continuously inject the concrete into the booster pump through the delivery pipe. At this time, the second engineering vehicle is moved, so that the second engineering vehicle can move and spray the concrete onto the ground, thus achieving the effect of remote mobile grouting of concrete. Furthermore, it avoids the problem that the grouting device is large in volume and difficult to move, resulting in laborious manual grouting of concrete, thereby improving the convenience of tunnel construction grouting.

[0018] By setting a feed hopper, when mixing and processing concrete, the concrete material is put into the feed hopper, so that the feed hopper can simultaneously convey various materials into the mixing box, thus achieving the effect of synchronous mixing and processing of concrete, that is, achieving the effect of continuous mixing and processing of concrete, thereby facilitating the continuous supply of concrete. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a preferred embodiment of a synchronous grouting device for shield tunnel construction provided by the utility model;

[0020] Figure 2 It is Figure 1 the front view of a synchronous grouting device for shield tunnel construction shown;

[0021] Figure 3 It is Figure 1 the front view of the first engineering vehicle in a synchronous grouting device for shield tunnel construction shown;

[0022] Figure 4 It is Figure 1 the front view of the second engineering vehicle in a synchronous grouting device for shield tunnel construction shown.

[0023] Reference numerals in the figure: 1, first engineering vehicle; 2, second engineering vehicle; 3, concrete delivery pump; 4, booster pump; 5, spraying pipe; 6, support frame; 7, mixing box; 8, feed hopper; 9, filter screen; 10, delivery pipe; 11, mixing mechanism; 111, rotating motor; 112, stirring impeller; 12, stabilizing mechanism; 121, hydraulic column; 122, anti-slip tooth plate; 13, connecting mechanism; 131, positioning column; 132, connecting clamping column. Detailed Description of the Embodiment

[0024] The following further explains the utility model in conjunction with the drawings and embodiments.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of a synchronous grouting device for shield tunnel construction provided by the present utility model; Figure 2 is Figure 1 a front view of a synchronous grouting device for shield tunnel construction shown in the figure; Figure 3 is Figure 1 a front view of the first engineering vehicle in a synchronous grouting device for shield tunnel construction shown in the figure; Figure 4 is Figure 1 a front view of the second engineering vehicle in a synchronous grouting device for shield tunnel construction shown in the figure. A synchronous grouting device for shield tunnel construction includes a first engineering vehicle 1 and a second engineering vehicle 2. A concrete delivery pump 3 is fixedly installed on the top of the first engineering vehicle 1, a booster pump 4 is fixedly installed on the top of the second engineering vehicle 2, a spraying pipe 5 is fixedly sleeved on the side of the booster pump 4, a support frame 6 is fixedly connected to the top of the concrete delivery pump 3, a mixing tank 7 is fixedly sleeved inside the support frame 6, a feeding hopper 8 is fixedly sleeved on the top of the mixing tank 7, a filter screen 9 is fixedly sleeved inside the feeding hopper 8, a delivery pipe 10 is fixedly sleeved on the side of the concrete delivery pump 3, a mixing mechanism 11 is arranged inside the mixing tank 7, a stabilizing mechanism 12 is arranged at the bottom of the first engineering vehicle 1, and a connecting mechanism 13 is arranged on the side of the first engineering vehicle 1.

[0026] The spraying pipe 5 is located at the exact middle of the side of the booster pump 4, and the front shape of the spraying pipe 5 is an inverted Y shape; by setting the spraying pipe 5, when tunnel concrete grouting is carried out, concrete materials are injected into the inside of the mixing tank 7 and the concrete delivery pump 3 is started, so that the concrete delivery pump 3 can continuously inject the concrete into the inside of the booster pump 4 through the delivery pipe 10. At this time, the second engineering vehicle 2 is moved, so that the second engineering vehicle 2 can move and spray the concrete onto the ground, thus achieving the effect of remote moving grouting of concrete, and further avoiding the problem that the grouting device is large in volume and difficult to move, resulting in laborious manual grouting of concrete, thereby improving the convenience of tunnel construction grouting.

[0027] The bottom of the mixing tank 7 is fixedly sleeved on the side of the concrete delivery pump 3, and the front shape of the mixing tank 7 is conical; by setting the mixing tank 7, when tunnel concrete grouting is carried out, the concrete delivery pump 3 is started, so that the concrete delivery pump 3 can absorb the concrete inside the mixing tank 7 and then perform remote transportation through the delivery pipe 10, thus bringing convenience to the long-distance transportation of concrete.

[0028] One end of the delivery pipe 10 is fixedly sleeved on the side of the booster pump 4, and the delivery pipe 10 is made of rubber material; by setting the delivery pipe 10, when remotely transporting concrete, the booster pump 4 is started, so that the booster pump 4 can suck the concrete inside the delivery pipe 10 and then discharge it through the spraying pipe 5, thus avoiding the problem that the pressure drops when the concrete transportation distance is relatively long, resulting in a relatively slow concrete discharge speed, thereby improving the efficiency of concrete grouting.

[0029] The number of the feed hoppers 8 is two, and the two feed hoppers 8 are symmetrically distributed with the mixing box 7 as the axis of symmetry; by setting the feed hoppers 8, when mixing concrete, the concrete materials are put into the interior of the feed hoppers 8, so that the feed hoppers 8 can simultaneously convey various materials into the interior of the mixing box 7, thereby achieving the effect of synchronous mixing and processing of concrete, and further achieving the effect of continuous mixing and processing of concrete.

[0030] The filter screen 9 is made of stainless steel material, and the filter screen 9 is adapted to the feed hopper 8; by setting the filter screen 9, when mixing concrete, the filter screen 9 can filter the concrete materials, so as to avoid the problem that larger gravel enters the interior of the mixing box 7, resulting in blockage during concrete transportation.

[0031] The mixing mechanism 11 includes a rotating motor 111, the rotating motor 111 is fixedly installed on the top of the mixing box 7, and a stirring impeller 112 is fixedly connected to the output shaft of the rotating motor 111; by setting the mixing mechanism 11, when processing concrete, the concrete materials are put into the interior of the mixing box 7, and at this time the rotating motor 111 is started, so that the rotating motor 111 can drive the stirring impeller 112 to rotate, thereby enabling the stirring impeller 112 to mix and stir the concrete, and further achieving the effect of concrete mixing and processing.

[0032] The stabilizing mechanism 12 includes a hydraulic column 121, the hydraulic column 121 is fixedly installed at the bottom of the first engineering vehicle 1, and an anti-slip tooth plate 122 is fixedly connected to the bottom of the hydraulic column 121; by setting the stabilizing mechanism 12, when pouring concrete, the hydraulic column 121 is started, so that the hydraulic column 121 can drive the anti-slip tooth plate 122 to tightly press on the ground, thereby enabling the hydraulic column 121 to support the first engineering vehicle 1, achieving the effect of supporting and fixing the first engineering vehicle 1, and thus avoiding the problem that the first engineering vehicle 1 shakes violently during concrete mixing and processing.

[0033] The connecting mechanism 13 includes a positioning column 131 which is fixedly connected to the side of the first engineering vehicle 1, and a connecting clamping column 132 is movably sleeved on the side of the second engineering vehicle 2. By setting the connecting mechanism 13, when the first engineering vehicle 1 is moving for transportation, the connecting clamping column 132 is flipped so that the connecting clamping column 132 can be sleeved inside the positioning column 131, enabling the first engineering vehicle 1 to drive the second engineering vehicle 2 to move horizontally through the connecting clamping column 132, thus facilitating the moving transportation of the grouting device.

[0034] The working principle of a synchronous grouting device for shield tunnel construction provided by the present utility model is as follows:

[0035] First step: Firstly, when grouting the tunnel concrete, inject the concrete material into the mixing box 7 and start the concrete delivery pump 3, so that the concrete delivery pump 3 can continuously inject the concrete into the booster pump 4 through the delivery pipe 10. At this time, move the second engineering vehicle 2 so that the second engineering vehicle 2 can move and spray the concrete onto the ground, thus achieving the effect of remote moving grouting of the concrete, and further avoiding the problem that the grouting device is too large to move, resulting in laborious manual grouting of the concrete, thereby improving the convenience of tunnel construction grouting. When grouting the tunnel concrete, start the concrete delivery pump 3, so that the concrete delivery pump 3 can absorb the concrete inside the mixing box 7 and then conduct remote transportation through the delivery pipe 10, thus facilitating the long-distance transportation of the concrete. When conducting the long-distance transportation of the concrete, start the booster pump 4, so that the booster pump 4 can absorb the concrete inside the delivery pipe 10 and then discharge it through the spraying pipe 5, avoiding the problem that the pressure decreases when the concrete transportation distance is relatively long, resulting in a relatively slow concrete discharge speed, thereby improving the efficiency of concrete grouting. When processing and mixing the concrete, put the concrete material into the feed hopper 8, so that the feed hopper 8 can simultaneously guide various materials into the mixing box 7, thus achieving the effect of synchronous mixing and processing of the concrete, and further achieving the effect of continuous mixing and processing of the concrete. When mixing and processing the concrete, the filter screen 9 can filter the concrete material, avoiding the problem that large-volume sand and gravel enter the mixing box 7, resulting in blockage during concrete transportation;

[0036] Step 2: When processing concrete, put the concrete materials into the interior of the mixing box 7. At this time, start the rotating motor 111, so that the rotating motor 111 drives the stirring impeller 112 to rotate, thereby enabling the stirring impeller 112 to mix and stir the concrete, and thus achieving the effect of concrete mixing and processing. When pouring concrete, start the hydraulic column 121, so that the hydraulic column 121 drives the anti-slip tooth plate 122 to tightly press on the ground, thereby enabling the hydraulic column 121 to support the first engineering vehicle 1, and further achieving the effect of supporting and fixing the first engineering vehicle 1, thus avoiding the problem of severe shaking of the first engineering vehicle 1 during the concrete mixing and processing. When the first engineering vehicle 1 is moving and transporting, flip the connecting clamping column 132, so that the connecting clamping column 132 is sleeved inside the positioning column 131, enabling the first engineering vehicle 1 to drive the second engineering vehicle 2 to move horizontally through the connecting clamping column 132, thus facilitating the moving and transporting of the grouting device.

[0037] Compared with the related technology, a synchronous grouting device for shield tunnel construction provided by the present utility model has the following beneficial effects:

[0038] By setting the spraying pipe 5, when grouting tunnel concrete, inject the concrete materials into the interior of the mixing box 7 and start the concrete delivery pump 3, so that the concrete delivery pump 3 continuously injects the concrete into the interior of the booster pump 4 through the delivery pipe 10. At this time, move the second engineering vehicle 2, so that the second engineering vehicle 2 moves and sprays the concrete onto the ground, thereby achieving the effect of remote moving grouting of the concrete, and further avoiding the problem that the grouting device is large in volume and difficult to move, resulting in laborious manual grouting of the concrete, thus improving the convenience of tunnel construction grouting.

[0039] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A synchronous grouting device for shield tunnel construction, comprising a first engineering vehicle (1) and a second engineering vehicle (2), characterized in that: A concrete delivery pump (3) is fixedly installed on the top of the first engineering vehicle (1). A booster pump (4) is fixedly installed on the top of the second engineering vehicle (2). A spraying pipe (5) is fixedly sleeved on the side of the booster pump (4). A support frame (6) is fixedly connected to the top of the concrete delivery pump (3). A mixing tank (7) is fixedly sleeved inside the support frame (6). A feed hopper (8) is fixedly sleeved on the top of the mixing tank (7). A filter screen (9) is fixedly sleeved inside the feed hopper (8). A delivery pipe (10) is fixedly sleeved on the side of the concrete delivery pump (3). A mixing mechanism (11) is arranged inside the mixing tank (7). A stabilizing mechanism (12) is arranged at the bottom of the first engineering vehicle (1). A connecting mechanism (13) is arranged on the side of the first engineering vehicle (1).

2. The synchronous grouting device for shield tunnel construction according to claim 1, characterized in that, The spraying pipe (5) is located exactly in the middle of the side of the booster pump (4), and the front shape of the spraying pipe (5) is an inverted Y shape.

3. The synchronous grouting device for shield tunnel construction according to claim 1, characterized in that, The bottom of the mixing tank (7) is fixedly sleeved on the side of the concrete delivery pump (3), and the front shape of the mixing tank (7) is conical.

4. A synchronous grouting device for shield tunnel construction according to claim 1, characterized in that, One end of the delivery pipe (10) is fixedly sleeved on the side of the booster pump (4), and the material of the delivery pipe (10) is rubber material.

5. The synchronous grouting device for shield tunnel construction according to claim 1, wherein The number of the feed hoppers (8) is two, and the two feed hoppers (8) are symmetrically distributed with the mixing tank (7) as the axis of symmetry.

6. The synchronous grouting device for shield tunnel construction according to claim 1, characterized in that The material of the filter screen (9) is stainless steel material, and the filter screen (9) is adapted to the feed hopper (8).

7. The synchronous grouting device for shield tunnel construction according to claim 1, characterized in that, The mixing mechanism (11) includes a rotary motor (111). The rotary motor (111) is fixedly installed on the top of the mixing tank (7). A stirring impeller (112) is fixedly connected to the output shaft of the rotary motor (111).

8. A synchronous grouting device for shield tunnel construction according to claim 1, characterized in that, The stabilizing mechanism (12) includes a hydraulic column (121). The hydraulic column (121) is fixedly installed at the bottom of the first engineering vehicle (1). An anti-slip toothed plate (122) is fixedly connected to the bottom of the hydraulic column (121).

9. The synchronous grouting device for shield tunnel construction according to claim 1, wherein, The connecting mechanism (13) includes a positioning column (131). The positioning column (131) is fixedly connected to the side of the first engineering vehicle (1). A connecting clamping column (132) is movably sleeved on the side of the second engineering vehicle (2).

Images