Synchronous grouting device for shield tunnel construction

Abstract

Disclosed in the present invention is a synchronous grouting device for a shield tunnel construction. The device comprises a mortar storage box; a mortar storage tank is formed in the inner wall of the mortar storage box; a separation structure is provided in the mortar storage tank, and is used for dividing the mortar storage tank into a plurality of partitions; each partition is provided with a stirring mechanism, a grouting mechanism, and a liquid level monitoring mechanism; the stirring mechanism comprises a U-shaped frame; the U-shaped frame is arranged in the corresponding partition, and the bottom of the U-shaped frame is in contact with the bottom of the mortar storage tank; the inner wall of the U-shaped frame is provided with a scale label; the liquid level monitoring mechanism comprises a camera; the camera is mounted on the corresponding U-shaped frame, and is located above the highest liquid level; the scale label is within the collection range of the camera; and the grouting speed is determined on the basis of the partition liquid level collected by the camera in real time and the pre-calibrated mortar volumes corresponding to different liquid levels. The present invention provides a liquid level monitoring type flow metering method, the reliability is high, and the grouting speed can be monitored.

Description

A synchronous grouting device for shield tunnel construction Technical Field

[0001] This invention relates to shield tunnel construction, and more specifically to a synchronous grouting device for shield tunnel construction. Background Technology

[0002] The shield tunneling method is a fully mechanized construction method in the cut-and-cover method. It uses shield machines to advance in the strata, and the shield shell and segments support the surrounding rock to prevent collapse into the tunnel. At the same time, cutting devices are used to excavate the soil in front of the excavation face, and the soil is transported out of the tunnel by the excavation machinery. The tunnel is then pushed forward by jacks at the rear and precast concrete segments are assembled to form the tunnel structure.

[0003] Synchronous grouting is a crucial step in shield tunneling construction. It involves injecting a suitable amount of grout material into the gap between the shield shell and the tunnel segments while the shield is being excavated. This is a key measure to reduce ground disturbance and displacement during construction. Controlling the synchronous grouting speed is essential for safe shield tunneling, especially when the shield is passing under existing buildings or structures at close intervals. A mismatch between the shield excavation speed and the synchronous grouting speed can easily lead to excessive deformation or even collapse of the existing buildings or structures.

[0004] The existing synchronous grouting devices have the following problems: (1) The grouting material is a high-solids slurry. As a contact metering method, the flow meter not only has limited metering accuracy, but is also easily damaged. The shield machine has a complex structure and a small internal space, making it difficult to replace damaged parts. (2) The existing synchronous grouting devices mostly calculate the volume by counting the number of strokes of the grouting pump and multiplying the number of strokes by the theoretical volume of a single stroke. Since there is a large error between the theoretical volume of a single stroke and the actual volume of a single stroke, the final calculation result is far from the actual situation. On the other hand, it is also impossible to monitor the grouting speed. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a synchronous grouting device for shield tunnel construction that can reliably monitor the grouting speed.

[0006] Technical Solution: The synchronous grouting device for shield tunnel construction described in this invention includes a grout storage tank, the inner wall of which forms a grout storage trough. A partition structure is provided within the grout storage trough to divide it into multiple zones. Each zone is equipped with a mixing mechanism, a grouting mechanism, and a liquid level monitoring mechanism. The mixing mechanism includes a U-shaped frame, which is positioned within the zone with its bottom in contact with the bottom of the grout storage trough. A scale label is provided on the inner wall of the U-shaped frame. The liquid level monitoring mechanism includes a camera, which is mounted on the U-shaped frame above the highest liquid level. The scale label is within the camera's acquisition range. The grouting speed is determined based on the real-time liquid level of each zone acquired by the camera and the pre-calibrated mortar volume corresponding to different liquid levels.

[0007] Furthermore, grouting materials are generally cementitious materials, which are prone to pipe blockage during grouting, delaying the tunnel boring machine (TBM) construction progress. TBM operators need to monitor the physical state of the grouting material in real time. However, currently, the grouting material status is mostly determined manually, which is highly subjective, difficult to monitor, and has significant limitations in accuracy. Therefore, the mixing mechanism also includes a motor and a torque sensor. The motor is mounted on the top of the U-shaped frame, with its output shaft passing downwards through the U-shaped frame. The torque sensor is mounted on the U-shaped frame, with one end of its measuring shaft installed on the motor's output end and the other end on a mixing shaft with spiral mixing blades. Before TBM excavation, the mapping relationship between mortar consistency and mixing torque needs to be determined through indoor tests. Turning on the motor drives the spiral mixing blades to agitate the mortar in the corresponding zone. Simultaneously, as the mortar consistency changes within a zone, the torque detected by the torque sensor changes. The torque of each zone's mixing shaft during rotation can be recorded to determine the physical state of the grout. This allows for adjustments to the spiral mixing blades' agitation speed or dilution with water based on torque changes, facilitating grout consistency monitoring.

[0008] Furthermore, each zone is also equipped with a cleaning mechanism, which includes an annular diversion pipe. The annular diversion pipe is installed on a U-shaped frame and has multiple nozzles distributed around it. A delivery pipe is connected to the annular diversion pipe, and the delivery pipe is connected to a water pipe and a water pump.

[0009] Furthermore, a filtration mechanism is installed on the grouting mechanism. The grouting mechanism includes a grouting pump, the suction end of which is connected to a grouting pipe, which is connected to the partition. The delivery end of the grouting pump is connected to a grouting pipe, and an electric three-way valve is installed on the grouting pipe. The filtration mechanism includes a filter box, in which a filter plate is installed. The filter box is connected to the other outlet of the electric three-way valve through a guide pipe, and the filtered water is sent back to the partition through a return pipe.

[0010] After the grouting work is completed, the electric three-way valve can be controlled to connect the grouting pipe and the guide pipe. Then, the delivery pipe is connected to the water pipe and the water pump to deliver water. The water is sprayed through the nozzle onto the inner wall of the grout storage tank and other locations for flushing. At the same time, the grouting pump can be turned on to extract the water and let it flow to the grouting pipe, the guide pipe and the filter box. Finally, it returns to the grout storage tank through the return pipe. During the process, the filter plate can filter out the sand and gravel and large particles in the mortar. When the water flows through the grouting pipe, it can flush out the mortar inside, preventing the mortar from solidifying in the grouting pipe and the pumping pipe and causing blockage.

[0011] Furthermore, there are multiple filter plates, spaced apart between two opposing support plates, with a sealing cover fixed to the top of each support plate; the filter box has an opening at the top, and the two support plates are inserted into the filter box from top to bottom, with the sealing cover detachably fixed to the top of the filter box.

[0012] Furthermore, the partition structure includes a first partition and a second partition. The inner walls of the left and right sides of the slurry storage tank have several pairs of first slots, and the first partition is inserted into the pairs of first slots. The inner walls of the front and rear sides of the slurry storage tank have several second slots. The first partition has third slots on both sides that are paired with the second slots on the inner walls of the front and rear sides of the slurry storage tank, and the second partition is inserted into the pairs of second slots and third slots.

[0013] Furthermore, guide frames are installed on the front and rear sides of the slurry storage tank, and connecting frames are slidably mounted on the guide frames. A U-shaped frame is installed at one end of the connecting frame; by moving the connecting frame, the mixing mechanism is positioned in the middle of the partition.

[0014] Furthermore, the guide frame is provided with a guide groove, and a guide slider is slidably connected in the guide groove. The guide slider is installed at the other end of the connecting frame.

[0015] Furthermore, rubber pads are provided in the first, second, and third slots.

[0016] Furthermore, a rinsing pipe is also installed on the U-shaped frame, with the outlet of the rinsing pipe facing the lens of the camera. The rinsing pipe is connected to a water pipe and a water pump.

[0017] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: After the surface mortar is transported to the mortar storage tank, a camera is used to capture the position of the mortar in each zone of the storage tank at the scale label, thereby determining the volume of remaining mortar in each zone. This allows for the acquisition of the change in grouting volume per unit time (i.e., grout injection speed). Using this grouting speed as a reference, the stroke frequency of the grouting pump is adjusted to change the grouting speed, matching it with the tunneling speed. This achieves zoned grouting control for different pipelines, ensuring that the grouting material fully fills and reinforces voids and cracks during tunneling. Replacing a flow meter with this level monitoring-based flow meter avoids the cumbersome replacement issues caused by flow meter damage, resulting in higher reliability. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of the synchronous grouting device for shield tunnel construction provided in an embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of the hidden filter mechanism in Figure 1;

[0020] Figure 3 is a top view of Figure 2;

[0021] Figure 4 is a schematic diagram of the stirring mechanism in an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the filter mechanism in an embodiment of the present invention;

[0023] Figure 6 is a cross-sectional view of the filter box in an embodiment of the present invention;

[0024] Figure 7 is a schematic diagram of the structure of the filter plate in an embodiment of the present invention. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. 1. Support frame; 2. Slurry storage tank; 3. Slurry storage trough; 4. Dividing structure; 401. First clamping plate; 402. First clamping slot; 403. First partition plate; 404. Second clamping plate; 405. Second clamping slot; 406. Third clamping plate; 407. Third clamping slot; 408. Second partition plate; 5. Stirring mechanism; 501. Guide frame; 502. Connecting frame; 503. U-shaped frame; 504. Motor; 505. Stirring shaft; 506. Spiral stirring blade; 507. Torque sensor; 508. Guide chute; 509. Guide slider; 6. Grouting mechanism; 601. Grouting pump; 602. Slurry extraction pipe; 603. Grouting pipe; 604. Electric three-way valve; 7. Liquid level monitoring mechanism; 701. Camera; 702. Scale label; 703. Flushing pipe; 8. Cleaning mechanism; 801. Annular diverter pipe; 802. Nozzle; 803. Delivery pipe; 9. Filtration mechanism; 901. Filter box; 902. Guide pipe; 903. Support plate; 904. Filter plate; 905. Sealing cover; 906. Return pipe; 907. Pipe rack; 908. Threaded seat; 909. Positioning block; 910. Fixing bolt.

[0026] Example 1

[0027] As shown in Figures 1 to 7, this embodiment 1 provides a synchronous grouting device for shield tunnel construction, including a grout storage tank 2. A support frame 1 is provided at the bottom of the grout storage tank 2, and a grout storage tank 3 is formed on the inner wall of the grout storage tank 2. A partition structure 4 is installed in the grout storage tank 3 to divide the grout storage tank 3 into multiple sections. Each section is equipped with a stirring mechanism 5, a grouting mechanism 6, a liquid level monitoring mechanism 7, and a cleaning mechanism 8. The stirring mechanism 5 is used to stir the mortar in the section, the grouting mechanism 6 is used to extract and transport the mortar, the liquid level monitoring mechanism 7 is used to detect the liquid level in the section to adjust the grouting speed, and the cleaning mechanism 8 is used to rinse the section after grouting. The liquid level monitoring mechanism 7 and the cleaning mechanism 8 are installed on the stirring mechanism 5. In addition, a filter mechanism 9 is installed on the grouting mechanism 6 to filter the rinsing water and send it back to the corresponding section.

[0028] The partition structure 4 includes several first retaining plates 401 and several second retaining plates 404. A first retaining groove 402 is formed between two adjacent first retaining plates 401, and a second retaining groove 405 is formed between two adjacent second retaining plates 404. The several first retaining plates 401 are installed on the left and right inner walls of the slurry storage tank 3, and a first partition 403 is inserted into the corresponding first retaining groove 402 on the left and right sides. Several third retaining plates 406 are installed on both sides of the first partition 403, and a third retaining groove 407 is formed between two adjacent third retaining plates 406. Several second retaining plates 404 are installed on the front and rear inner walls of the slurry storage tank 3, and a second partition 408 is inserted into the corresponding second retaining groove 405 and third retaining groove 407 on the front and rear sides. In this embodiment, rubber pads are provided in the first retaining groove 402, the second retaining groove 405, and the third retaining groove 407.

[0029] In use, first insert both ends of the second partition 403 into the first slots 402 on the left and right sides respectively. Then, select a second partition 408 of appropriate length according to the distance between the first partition 403 and the inner wall of the slurry storage tank 3. Insert both ends of the second partition 408 into the second slots 405 and the third slots 407 on the front and rear sides respectively to divide the slurry storage tank 3 into four sections.

[0030] Guide frames 501 are installed on both the front and rear sides of the slurry storage tank 2. A connecting frame 502 is slidably mounted on the guide frame 501. A U-shaped frame 503 is installed at one end of the connecting frame 502, and the bottom of the U-shaped frame 503 contacts the bottom of the slurry storage tank 3. The stirring mechanism 5 includes a motor 504, which is mounted on the top of the U-shaped frame 503. The output end of the motor 504 passes through the U-shaped frame 503. A torque sensor 507 is mounted on the U-shaped frame 503. A measuring shaft is provided on the torque sensor 507. One end of the measuring shaft is mounted on the output end of the motor 504, and the other end of the measuring shaft is mounted on a stirring shaft 505. A spiral stirring blade 506 is mounted on the stirring shaft 505.

[0031] In this embodiment, a guide groove 508 is provided on the guide frame 501, and a guide slider 509 is slidably installed in the guide groove 508. The guide slider 509 is installed at the other end of the connecting frame 502. By pushing the connecting frame 502, it can cause the guide slider 509 to slide in the guide groove 508 on the guide frame 501, thereby restricting the movement direction of the connecting frame 502. Thus, the stirring position can be adjusted according to the partition size in the slurry tank 2. By pushing the connecting frame 502, it can cause the spiral stirring blade 506 to move, so that the spiral stirring blade 506 is located in the middle position of the partition.

[0032] When stirring, motor 504 is turned on. The output of motor 504 drives the measuring shaft of torque sensor 507 to rotate, which in turn drives stirring shaft 505 and spiral stirring blades 506 to rotate, thus agitating the mortar in the corresponding zone and preventing premature setting. Each zone's motor 504 output shaft is equipped with a torque sensor 507, which records the torque of stirring shaft 505 rotating in each zone. Combined with the pre-determined mapping relationship between mortar consistency and stirring torque, the physical state of the slurry is determined.

[0033] The grouting mechanism 6 includes a grouting pump 601, which is mounted on a support frame 1. The suction end of the grouting pump 601 is connected to a grout extraction pipe 602, which is connected to a grout storage tank 2 and communicates with the grouting zone. The delivery end of the grouting pump 601 is connected to a grouting pipe 603, which is equipped with an electric three-way valve 604. Turning on the grouting pump 601 allows grout to be extracted from the grouting zone, and the grout is gradually forced into the shield tail gap through the electric three-way valve 604 and the grouting pipe 603.

[0034] Example 2

[0035] Example 2 is a further improvement based on Example 1.

[0036] As shown in Figures 1 to 4, in order to facilitate the capture of the changes in the grouting volume of each zone within the grout storage tank 2 per unit time, so as to adjust the grouting speed, a liquid level monitoring mechanism 7 is installed on the mixing mechanism 5.

[0037] The liquid level monitoring mechanism 7 includes a camera 701, which is mounted on a U-shaped frame 503 and positioned above the highest liquid level. A scale label 702 is provided on the inner wall of the U-shaped frame 503, within the acquisition range of the camera 701. A flushing pipe 703 is installed on the U-shaped frame 503, with its outlet facing the lens of the camera 701. The camera 701 can obtain the position of the mortar level within the zone at the scale label 702, and water can be sprayed onto the lens of the camera 701 by connecting the flushing pipe 703 to a water pipe to clean the lens.

[0038] The liquid level monitoring mechanism 7 can capture the changes in grouting volume in each zone within the grout storage tank 2 per unit time, i.e., the grout injection rate, V. 注浆 =(V t1 -V t2 ) / (t2-t1), where t1 and t2 are the recording times, V t1 V t2 Let V be the volume of grout in storage tank 2 at times t1 and t2. Using this grouting speed as a reference, the stroke frequency of grouting pump 601 is adjusted to change the grouting speed, making it match the tunneling speed. The grouting speed should satisfy: V注浆 =V 掘进 ×Π(Dd) / 4, where V 掘进 Where is the tunneling speed of the tunnel boring machine, D is the diameter of the cutterhead of the tunnel boring machine, and d is the diameter of the tail shield of the tunnel boring machine.

[0039] Example 3

[0040] Example 3 is a further improvement based on Example 2.

[0041] As shown in Figures 1 to 7, in order to prevent the remaining mortar from solidifying and clogging the grouting pipe 603 after grouting is completed, a cleaning mechanism 8 is installed on the mixing mechanism 5 and a filtering mechanism 9 is installed on the grouting mechanism 6.

[0042] The cleaning mechanism 8 includes an annular diversion pipe 801, which is mounted on a U-shaped frame 503. Multiple nozzles 802 are mounted on the annular diversion pipe 801 and distributed around the U-shaped frame 503. A delivery pipe 803 is connected to the annular diversion pipe 801 and is connected to the annular diversion pipe 801. The delivery pipe 803 is connected to a water pipe and a water pump.

[0043] The filtration mechanism 9 includes a filter box 901, with a guide pipe 902 connected to the filter box 901. The other end of the guide pipe 902 is connected to the other outlet of an electric three-way valve 604. Two support plates 903 are movably installed on the inner wall of the filter box 901, and several filter plates 904 are arranged vertically between the two support plates 903. A sealing cover 905 is fixed to the top of the two support plates 903, and the sealing cover 905 contacts the top of the filter box 901. A return pipe 906 is connected to the filter box 901. One end of the return pipe 906 is located below the filter plates 904, and the other end of the return pipe 906 is located above the slurry storage tank 2. A pipe rack 907 is installed on the return pipe 906, and the pipe rack 907 is installed on one side of the guide frame 501. A threaded seat 908 is installed on the filter box 901, and a positioning block 909 is installed on the sealing cover 905. One end of a fixing bolt 910 is movably installed on the positioning block 909, and the other end of the fixing bolt 910 passes through the positioning block 909 and is threaded into the threaded seat 908.

[0044] After the grouting work is completed, the delivery pipe 803 can be connected to a water pipe and a water pump to draw water into the annular diversion pipe 801. Then, the water is sprayed onto the inner wall of the grout storage tank 2 and the first baffle 403 and the second baffle 408 through the nozzle 802 for flushing, while diluting the remaining mortar in the grout storage tank 2. At this time, the electric three-way valve 604 can be controlled to connect the grouting pipe 603 and the guide pipe 902, and then the grouting pump 601 can be turned on to draw out the water and mortar from the grout storage tank 2, allowing the water and mortar to flow through the filter plate 904, thereby filtering out sand and large particles. The remaining water returns to the grout storage tank 2 through the return pipe 906, allowing the water to be recycled. When the water flows through the grouting pipe 603, it can flush out the mortar inside, preventing the mortar from solidifying inside the grouting pipe 603 and causing blockage.

[0045] The working principle of this invention is as follows:

[0046] Before tunneling, it is necessary to determine the mapping relationship between mortar consistency and mixing torque through indoor tests, and calibrate the volume corresponding to different liquid levels in each zone. When using this device, the first baffle 403 and the second baffle 408 must be adjusted to appropriate positions based on the grouting status of each pipeline. Unless there are special circumstances, the baffles are adjusted to the middle position by default, dividing the grout storage tank 3 into four equal parts.

[0047] After the ground mortar is transported to the storage tank 2, the mixing mechanisms 5 of each zone begin to work. During the process, the mixing position can be adjusted to the middle position of the zone according to the size of the zones in the storage tank 2. The output end of the motor 504 can drive the measuring shaft of the torque sensor 507 to rotate, so that the measuring shaft drives the mixing shaft 505 to rotate. The rotating mixing shaft 505 drives the spiral mixing blades 506 to stir the mortar in the corresponding zone. By stirring the mortar, premature setting can be avoided. At the same time, the torque sensor 507 installed on the output shaft of the motor 504 at the corresponding position of each zone can record the torque when the mixing shaft 505 of each zone rotates, thereby judging the physical state of the mortar.

[0048] When the tunnel boring machine (TBM) begins excavation, the grouting pump 601 can be activated to extract grout from the grout storage tank 2, allowing the grout to be gradually injected into the tail shield gap through the electric three-way valve 604 and the grouting pipe 603. A camera 701 can be used to obtain the position of the grout level within each zone on the scale label 702 (the liquid level is obtained through an image recognition algorithm, which is existing technology). Water can be sprayed onto the lens of the camera 701 by connecting the flushing pipe 703 to a water pipe to clean the lens and prevent grout from contaminating it and affecting the measurement accuracy. Furthermore, the grouting speed of each zone is obtained using the aforementioned formula. Using this grouting speed as a reference, the stroke frequency of the grouting pump 601 is adjusted to change the grouting speed, making it match the tunneling speed.

[0049] After the grouting work is completed, the delivery pipe 803 can be connected to a water pipe and a water pump to pump water into the annular diversion pipe 801. Then, the water is sprayed onto the inner wall of the grout storage tank 2 and the first baffle 403 and the second baffle 408 through the nozzle 802 for rinsing, while diluting the remaining mortar in the grout storage tank 2. At this time, the electric three-way valve 604 can be controlled to switch the flow direction, so that the grouting pipe 603 is connected to the guide pipe 902. Then, the grouting pump 601 is turned on to extract the water and mortar from the grout storage tank 2, so that the water and mortar flow into the filter box 901 through the grouting pipe 603 and the guide pipe 902. The water and mortar will flow through the filter plate 904, which will block the sand and large particles in the mortar. The remaining water will return to the grout storage tank 2 through the return pipe 906, so that the water can be recycled. Furthermore, when water flows through the grouting pipe 603, it can flush out the mortar inside, preventing the mortar from solidifying inside the grouting pipe 603 and causing blockage, so that it can be used later.

[0050] After rinsing is complete, the fixing bolt 910 at the corresponding position can be rotated and unscrewed from the threaded seat 908 and the positioning block 909. At this time, the restriction on the sealing cover 905 can be released. Pulling the sealing cover 905 will allow the support plate 903 and the filter plate 904 to be pulled out from the filter box 901 so that the sand and gravel particles remaining on the filter plate 904 can be cleaned.

Claims

1. A synchronous grouting device for shield tunneling, comprising a grout storage tank (2), the inner wall of which forms a grout storage groove (3), characterized in that, The slurry storage tank (3) is provided with a partition structure (4) to divide the slurry storage tank (3) into multiple partitions; each partition is equipped with a stirring mechanism (5), a grouting mechanism (6) and a liquid level monitoring mechanism (7); the stirring mechanism (5) includes a U-shaped frame (503), which is set in the partition and the bottom of the U-shaped frame (503) is in contact with the bottom of the slurry storage tank (3), and a scale label (702) is set on the inner wall of the U-shaped frame (503); the liquid level monitoring mechanism (7) includes a camera (701), which is installed on the U-shaped frame (503) and located above the highest liquid level, and the scale label (702) is within the acquisition range of the camera (701); the grouting speed is determined according to the partition liquid level collected in real time by the camera (701) and the mortar volume corresponding to the different liquid levels pre-calibrated.

2. The simultaneous grouting device according to claim 1, characterized in that The mixing mechanism (5) also includes a motor (504) and a torque sensor (507). The motor (504) is mounted on the top of the U-shaped frame (503), and its output shaft passes downward through the U-shaped frame (503). The torque sensor (507) is mounted on the U-shaped frame (503). One end of the measuring shaft of the torque sensor (507) is mounted on the output end of the motor (504), and the other end of the measuring shaft is mounted on the mixing shaft (505). The mixing shaft (505) is equipped with a spiral mixing blade (506). The consistency of the slurry is determined based on the mixing torque detected in real time by the torque sensor (507) and the pre-determined mapping relationship between the slurry consistency and the mixing torque.

3. The simultaneous grouting device according to claim 1, characterized in that Each zone is also equipped with a cleaning mechanism (8), which includes an annular diversion pipe (801). The annular diversion pipe (801) is installed on a U-shaped frame (503) and multiple nozzles (802) are distributed around the annular diversion pipe (801). A delivery pipe (803) is connected to the annular diversion pipe (801), and the delivery pipe (803) is connected to a water pipe and a water pump.

4. The simultaneous grouting device according to claim 3, characterized in that The grouting mechanism (6) is equipped with a filtration mechanism (9). The grouting mechanism (6) includes a grouting pump (601), the suction end of which is connected to a grouting pipe (602), which is connected to the partition. The delivery end of the grouting pump (601) is connected to a grouting pipe (603), which is equipped with an electric three-way valve (604). The filtration mechanism (9) includes a filter box (901), which is equipped with a filter plate (904). The filter box (901) is connected to the other outlet of the electric three-way valve (604) through a guide pipe (902), and the filtered water is sent back to the partition through a return pipe (906).

5. The simultaneous grouting device according to claim 4, characterized in that The filter plates (904) are multiple pieces, spaced apart between two opposing support plates (903), and the top of the two support plates (903) is fixed with a sealing cover (905); the filter box (901) has an opening at the top, and the two support plates (903) are inserted into the filter box (901) from top to bottom, and the sealing cover (905) is detachably fixed to the top of the filter box (901).

6. The simultaneous grouting device of claim 1, wherein, The partition structure (4) includes a first partition (403) and a second partition (408). The inner walls of the left and right sides of the slurry storage tank (3) have several pairs of first slots (402). The first partition (403) is inserted into the pairs of first slots (402). The inner walls of the front and rear sides of the slurry storage tank (3) have several second slots (405). The first partition (403) has third slots (407) on both sides that are paired with the second slots (405) on the front and rear sides of the slurry storage tank (3). The second partition (408) is inserted into the pairs of second slots (405) and third slots (407).

7. The simultaneous grouting device according to claim 6, characterized in that The slurry storage tank (2) is equipped with a guide frame (501) on the front and rear sides. A connecting frame (502) is slidably installed on the guide frame (501). A U-shaped frame (503) is installed at one end of the connecting frame (502). The stirring mechanism (5) is positioned in the middle of the partition by moving the connecting frame (502).

8. The simultaneous grouting device according to claim 7, characterized in that The guide frame (501) is provided with a guide groove (508), and a guide slider (509) is slidably connected in the guide groove (508). The guide slider (509) is installed at the other end of the connecting frame (502).

9. The simultaneous grouting device according to claim 6, characterized in that Rubber pads are installed in the first, second, and third slots.

10. The simultaneous grouting device of claim 1, wherein, The U-shaped frame (503) is also equipped with a flushing pipe (703), the outlet of which faces the lens of the camera (701), and the flushing pipe (703) is connected to a water pipe and a water pump.

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