A hole cleaning and mortar replacing integrated device for underground continuous wall construction

Abstract

The utility model relates to the technical field of hole cleaning and mortar replacing integration device, disclose a hole cleaning and mortar replacing integration device for underground continuous wall construction, including the tracked carrier, the tracked carrier top fixedly connected with the chassis, the chassis top fixedly connected with the collection mortar box, the tracked carrier top fixedly connected with the mortar storage box, the collection mortar box with the mortar storage box side wall all are fixedly connected with the tee bend, the tee bend outer wall is provided with control assembly, the tee bend bottom fixedly connected with the slurry pipe no.

Description

Technical Field

[0001] This utility model relates to the technical field of integrated hole cleaning and slurry replacement device, and in particular to an integrated hole cleaning and slurry replacement device for underground continuous wall construction. Background Technology

[0002] As a key support structure in deep foundation pit engineering and underground structures, the construction quality of diaphragm walls directly affects the stability and safety of the overall project. During trenching, a large amount of drill cuttings and suspended particles are generated within the trench, forming a high-concentration mud mixture. Simultaneously, localized voids or mud cake adhesion easily appear on the trench walls, severely impacting the quality of concrete pouring and the wall's load-bearing capacity. Therefore, the hole cleaning and mud replacement processes are crucial for ensuring the construction quality of diaphragm walls. Traditional processes often employ separate single-function slag removal equipment and mud circulation systems, which suffers from limitations such as poor process coordination, low equipment integration, and low operational efficiency. A specialized device is needed that can integrate hole cleaning and mud replacement operations and adapt to complex trench conditions.

[0003] Currently, most common diaphragm wall cleaning operations employ sand pumps or air-lift reverse circulation equipment. Their structure typically consists of a fixed-length slurry extraction pipe, a pump system, a mud separation device, and a reinjection pipeline. The technical principle relies primarily on negative pressure suction or gas lifting to remove sediment and thick mud from the bottom of the trench, while fresh mud is reinjected into the trench through another pipeline to maintain a stable mud level.

[0004] However, the aforementioned existing technologies have significant limitations in practical applications: because their grouting pipes are of fixed length or require manual segmentation and assembly, they cannot flexibly adapt to the requirements of diaphragm wall trenching operations at different depths. When encountering ultra-deep trenches or trenches with significant depth variations, the grouting pipes often fail to effectively reach the trench bottom or local void areas, resulting in limited cleaning range, incomplete removal of sediment and localized siltation at the trench bottom, and consequently affecting the quality of subsequent concrete pouring and the overall performance of the diaphragm wall. Therefore, an integrated grouting and cleaning device for diaphragm wall construction is proposed to solve these problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides an integrated hole cleaning and slurry replacement device for diaphragm wall construction, which aims to improve the problem that the existing technology cannot flexibly adapt to the requirements of diaphragm wall trench operations at different depths because its slurry pumping pipe is of fixed length or requires manual segmentation and assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An integrated hole cleaning and slurry replacement device for diaphragm wall construction includes a tracked vehicle, a chassis fixedly connected to the top of the tracked vehicle, a slurry collection box fixedly connected to the top of the chassis, a slurry storage box fixedly connected to the top of the tracked vehicle, a T-shaped pipe fixedly connected to the side walls of the slurry collection box and the slurry storage box, a control component provided on the outer wall of the T-shaped pipe, and a slurry flow pipe fixedly connected to the bottom of the T-shaped pipe, with a telescopic component provided inside the slurry flow pipe. The telescopic assembly includes a second flow pipe and a third flow pipe. The second flow pipe is slidably connected to the inner wall of the first flow pipe, and the third flow pipe is slidably connected to the inner wall of the second flow pipe. Both the first and second flow pipes are provided with driving assemblies on their outer walls. A fixed frame is fixedly connected inside the slurry storage tank, and a stirring assembly is provided inside the fixed frame.

[0007] As a further description of the above technical solution: The slurry receiving box is fixedly connected to the side wall of the slurry discharge pipe, and the slurry storage box is fixedly connected to the top of the slurry injection port.

[0008] As a further description of the above technical solution: The control components include a suction pump and a grouting pump, both of which are installed on the outer wall of the three-way pipe. The outer wall of the three-way pipe is equipped with valve one and valve two.

[0009] As a further description of the above technical solution: The drive assembly includes an electric telescopic rod one and an electric telescopic rod two. The outer wall of the electric telescopic rod one is fixedly connected to the outer wall of the slurry pipe one, the outer wall of the electric telescopic rod two is fixedly connected to the outer wall of the slurry pipe two, the outer wall of the slurry pipe two is fixedly connected to the output end of the electric telescopic rod one, and the outer wall of the slurry pipe three is fixedly connected to the output end of the electric telescopic rod two.

[0010] As a further description of the above technical solution: The stirring assembly includes a sliding column and a drive roller. The sliding column is slidably connected to the inner wall of the fixed frame, one end of the drive roller is fixedly connected to one end of the sliding column, and a fan blade is fixedly connected to the outer wall of the drive roller.

[0011] As a further description of the above technical solution: A motor is fixedly connected to the side wall of the fixed frame, and a transmission plate is fixedly connected to the output end of the motor. The transmission plate is rotatably connected inside the sliding column. A hollow column is fixedly connected to the inner wall of the slurry tank, and the transmission roller is slidably connected to the inner wall of the hollow column.

[0012] As a further description of the above technical solution: The inner wall of the fixed frame is provided with an annular groove, and a fixed ball is fixedly connected to the outer wall of the sliding column.

[0013] As a further description of the above technical solution: The sliding column is rotatably connected to the inner wall of the fixed frame, and the fixed ball is slidably connected inside the annular groove.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the electric telescopic rod 1 on the outer wall of the grout pipe 1 drives the grout pipe 2 to slide on the inner wall of the grout pipe 1, and then the electric telescopic rod 2 on the outer wall of the grout pipe 2 drives the grout pipe 3 to slide on the inner wall of the grout pipe 2. This allows the telescopic assembly to flexibly adjust its overall length according to the depth of the underground continuous wall trench, enabling the grout pipe 3 to extend to different working positions. This achieves the effect of grouting and cleaning mud and holes at different depths, solving the problem that traditional devices cannot adapt to trenches of different depths due to their fixed length and have a limited cleaning range. This improves the adaptability of the device to different construction scenarios and the comprehensiveness of the cleaning.

[0015] 2. In this utility model, after starting the motor in the slurry storage tank, the motor output drives the transmission plate to rotate, the transmission plate drives the sliding column to rotate on the inner wall of the fixed frame, the sliding column drives the transmission roller to rotate on the inner wall of the hollow column, and the transmission roller simultaneously drives the fan blade to rotate. This causes the slurry inside the slurry storage tank to be axially stirred by the rotation of the fan blade and to tumble by the rotation of the transmission roller, thereby achieving the effect of uniform slurry composition and avoiding particle sedimentation. This solves the problem of easy stratification of slurry in traditional slurry storage tanks, which affects the quality of subsequent slurry replacement, and improves the stability of slurry and the reliability of slurry replacement operations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an integrated hole cleaning and slurry replacement device for underground continuous wall construction proposed in this utility model; Figure 2 This is a schematic diagram of the three-way pipe structure of an integrated hole cleaning and slurry replacement device for underground continuous wall construction proposed in this utility model; Figure 3 This is a cross-sectional structural diagram of the slurry storage tank of an integrated hole cleaning and slurry replacement device for underground continuous wall construction proposed in this utility model. Figure 4 This is a schematic diagram of the fan blade structure of an integrated hole cleaning and slurry replacement device for underground continuous wall construction proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0017] Legend: 1. Tracked vehicle; 2. Chassis; 3. Slurry collection box; 4. Slurry storage box; 5. Grouting port; 6. Slurry discharge pipe; 7. T-pipe; 8. Slurry suction pump; 9. Grouting pump; 10. Valve 1; 11. Valve 2; 12. Slurry flow pipe 1; 13. Slurry flow pipe 2; 14. Slurry flow pipe 3; 15. Electric telescopic rod 1; 16. Electric telescopic rod 2; 17. Motor; 18. Fixing frame; 19. Drive roller; 20. Fan blade; 21. Hollow column; 22. Sliding column; 23. Fixed ball; 24. Annular groove; 25. Transmission plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 5 This utility model provides an embodiment of an integrated hole cleaning and slurry replacement device for diaphragm wall construction, comprising a tracked vehicle 1, which provides mobility for the entire device, enabling flexible transfer and positioning on the construction site. A chassis 2 is fixedly connected to the top of the tracked vehicle 1, serving as the main load-bearing and mounting base for the entire device. A slurry collection tank 3 is fixedly connected to the top of the chassis 2, used to collect and temporarily store the turbid slurry extracted from the trench. A slurry storage tank 4 is fixedly connected to the top of the tracked vehicle 1. The slurry storage tank 4 is used to store fresh or treated slurry to be injected into the slot. The slurry receiving tank 3 and the slurry storage tank 4 are both fixedly connected to a three-way pipe 7. The three-way pipe 7 realizes the convergence and divergence of the pipeline and controls the flow direction of the slurry. The outer wall of the three-way pipe 7 is equipped with a control component, which is used to regulate the start, stop and direction of slurry transportation. The bottom of the three-way pipe 7 is fixedly connected to a slurry flow pipe 12. The slurry flow pipe 12 serves as the main pipeline for slurry transportation and the guide outer pipe for the expansion joint. The expansion joint is installed inside the slurry flow pipe 12. The telescopic assembly includes a second flow pipe 13 and a third flow pipe 14, which together form a telescopic pipeline system to achieve vertical depth adjustment. The second flow pipe 13 is slidably connected to the inner wall of the first flow pipe 12, and the third flow pipe 14 is slidably connected to the inner wall of the second flow pipe 13. Both the first flow pipe 12 and the second flow pipe 13 have drive components on their outer walls, which provide power for the telescopic movement of the pipelines. A fixed frame 18 is fixedly connected inside the slurry storage tank 4, providing a stable installation and support foundation for the mixing assembly. The mixing assembly is installed inside the fixed frame 18 to continuously mix the slurry in the storage tank 4, preventing segregation and sedimentation. A discharge pipe 6 is fixedly connected to the side wall of the collection tank 3, used to discharge the waste slurry collected in the collection tank 3 to an external treatment system. A grouting port 5 is fixedly connected to the top of the storage tank 4, used to replenish the storage tank 4 with fresh slurry. The control components for the slurry include a suction pump 8 and an injection pump 9. The suction pump 8 provides negative pressure suction power to extract the slurry from the trench, and the injection pump 9 provides positive pressure delivery power to inject the slurry from the storage tank 4 into the trench. Both the suction pump 8 and the injection pump 9 are installed on the outer wall of the three-way pipe 7. The outer wall of the three-way pipe 7 is equipped with valve 10 and valve 21. Valve 10 and valve 21 are used to manually or automatically switch the on / off state of the pipeline to control the operation mode. The drive components include an electric telescopic rod 15 and an electric telescopic rod 26. The electric telescopic rod 15 and electric telescopic rod 26 are linear actuators that drive the extension and retraction of the pipeline. The outer wall of the electric telescopic rod 15 is fixedly connected to the outer wall of the slurry pipe 12, the outer wall of the electric telescopic rod 26 is fixedly connected to the outer wall of the slurry pipe 23, the outer wall of the slurry pipe 213 is fixedly connected to the output end of the electric telescopic rod 15, and the outer wall of the slurry pipe 314 is fixedly connected to the output end of the electric telescopic rod 216.

[0020] Reference Figure 1 - Figure 5The mixing assembly includes a sliding column 22 and a drive roller 19. The sliding column 22 is used to transmit power and allow axial movement to adapt to position changes during transmission. The sliding column 22 is slidably connected to the inner wall of the fixed frame 18. One end of the drive roller 19 is fixedly connected to one end of the sliding column 22. The drive roller 19, as the core rotating component, is used to directly drive the fan blade 20 to rotate. The fan blade 20 is fixedly connected to the outer wall of the drive roller 19. When rotating, the fan blade 20 generates shearing and thrust on the mud, realizing the stirring and mixing function. A motor 17 is fixedly connected to the side wall of the fixed frame 18. The motor 17 provides the original rotational power for the entire mixing assembly. A transmission plate 25 is fixedly connected to the output end of the motor 17. The transmission plate 25 converts the rotational motion of the motor 17 into the rotation of the sliding column. Driven by 22, the transmission plate 25 is rotatably connected inside the sliding column 22. A hollow column 21 is fixedly connected to the inner wall of the slurry tank 4. The hollow column 21 provides radial support and guidance for the transmission roller 19, limiting its movement trajectory. The transmission roller 19 is slidably connected to the inner wall of the hollow column 21. An annular groove 24 is opened on the inner wall of the fixed frame 18. The annular groove 24 cooperates with the fixed ball 23 to form a kinematic pair that allows the sliding column 22 to both rotate and slide within a limited range. A fixed ball 23 is fixedly connected to the outer wall of the sliding column 22. The fixed ball 23 rolls in the annular groove 24, transmitting the rotational force of the transmission plate 25 to the sliding column 22, while allowing it to slide axially. The sliding column 22 is rotatably connected to the inner wall of the fixed frame 18, and the fixed ball 23 is slidably connected inside the annular groove 24.

[0021] Working Principle: When a diaphragm wall construction integrated hole cleaning and slurry replacement device is in operation, the tracked vehicle 1 first moves the chassis 2, the slurry collection box 3 on top of the chassis 2, and the slurry storage box 4 on top of the tracked vehicle 1 to the working position. If the depth of the slurry pipe needs adjustment, the electric telescopic rod 15 on the outer wall of slurry pipe 12 drives slurry pipe 2 13 to slide on the inner wall of slurry pipe 12. Then, the electric telescopic rod 16 on the outer wall of slurry pipe 2 13 drives slurry pipe 3 14 to slide on the inner wall of slurry pipe 2 13, adjusting the telescopic component to match the hole depth. Subsequently, the suction pump 8 on the outer wall of the three-way pipe 7 in the control component is started, and the corresponding valve 10 is opened. The suction pump 8 drives the slurry containing slag in the trench through slurry pipe 3 14, slurry pipe 2 13, slurry pipe 1 12, and three-way pipe 7 into the slurry collection box 3. The slurry in the slurry collection box 3 can be solidified through the side wall. The slurry is discharged through the fixed discharge pipe 6. At the same time, the motor 17 on the side wall of the fixed frame 18 inside the slurry storage tank 4 is started. The output end of the motor 17 drives the transmission plate 25 to rotate. The transmission plate 25 drives the sliding column 22 to rotate on the inner wall of the fixed frame 18. The fixed ball 23 on the outer wall of the sliding column 22 slides in the annular groove 24 on the inner wall of the fixed frame 18. The sliding column 22 drives the transmission roller 19 to rotate on the inner wall of the hollow column 21 on the inner wall of the slurry storage tank 4. The transmission roller 19 drives the fan blade 20 on the outer wall to rotate and stir the mud in the slurry storage tank 4. Then, the grouting pump 9 on the outer wall of the three-way pipe 7 is started and the corresponding valve 2 11 is opened. The grouting pump 9 drives the qualified mud in the slurry storage tank 4 to be injected into the tank through the three-way pipe 7, the first slurry pipe 12, the second slurry pipe 13, and the third slurry pipe 14 to achieve hole cleaning and slurry replacement. If the mud in the slurry storage tank 4 is insufficient, mud can be added through the grouting port 5 at the top.

Claims

1. A hole cleaning and mortar replacing integrated device for diaphragm wall construction, comprising a caterpillar vehicle (1), characterized in that: The tracked vehicle (1) is fixedly connected to a chassis (2) on top. The chassis (2) is fixedly connected to a slurry collection box (3) on top. The tracked vehicle (1) is fixedly connected to a slurry storage box (4) on top. The slurry collection box (3) and the slurry storage box (4) are both fixedly connected to a three-way pipe (7) on their side walls. The three-way pipe (7) is provided with a control component on its outer wall. The three-way pipe (7) is fixedly connected to a first slurry pipe (12) at its bottom. The first slurry pipe (12) is provided with a telescopic component inside its interior. The telescopic assembly includes a second flow pipe (13) and a third flow pipe (14). The second flow pipe (13) is slidably connected to the inner wall of the first flow pipe (12), and the third flow pipe (14) is slidably connected to the inner wall of the second flow pipe (13). Both the first flow pipe (12) and the second flow pipe (13) are provided with driving components on their outer walls. The storage tank (4) is fixedly connected to a fixed frame (18), and a stirring component is provided inside the fixed frame (18).

2. The hole cleaning and mortar replacing integrated device for diaphragm wall construction according to claim 1, characterized in that: The slurry collection box (3) is fixedly connected to the side wall of the slurry discharge pipe (6), and the slurry storage box (4) is fixedly connected to the top of the slurry injection port (5).

3. The integrated hole cleaning and slurry replacement device for diaphragm wall construction according to claim 1, characterized in that: The control components include a suction pump (8) and a grouting pump (9), both of which are located on the outer wall of the three-way pipe (7). The outer wall of the three-way pipe (7) is provided with valve one (10) and valve two (11).

4. The integrated hole cleaning and slurry replacement device for diaphragm wall construction according to claim 1, characterized in that: The drive assembly includes an electric telescopic rod one (15) and an electric telescopic rod two (16). The outer wall of the electric telescopic rod one (15) is fixedly connected to the outer wall of the slurry pipe one (12). The outer wall of the electric telescopic rod two (16) is fixedly connected to the outer wall of the slurry pipe two (13). The outer wall of the slurry pipe two (13) is fixedly connected to the output end of the electric telescopic rod one (15). The outer wall of the slurry pipe three (14) is fixedly connected to the output end of the electric telescopic rod two (16).

5. The integrated hole cleaning and slurry replacement device for diaphragm wall construction according to claim 1, characterized in that: The stirring assembly includes a sliding column (22) and a drive roller (19). The sliding column (22) is slidably connected to the inner wall of the fixed frame (18). One end of the drive roller (19) is fixedly connected to one end of the sliding column (22). A fan blade (20) is fixedly connected to the outer wall of the drive roller (19).

6. The integrated hole cleaning and slurry replacement device for diaphragm wall construction according to claim 5, characterized in that: A motor (17) is fixedly connected to the side wall of the fixed frame (18), and a transmission plate (25) is fixedly connected to the output end of the motor (17). The transmission plate (25) is rotatably connected inside the sliding column (22). A hollow column (21) is fixedly connected to the inner wall of the slurry tank (4), and the transmission roller (19) is slidably connected to the inner wall of the hollow column (21).

7. The integrated hole cleaning and slurry replacement device for diaphragm wall construction according to claim 6, characterized in that: The inner wall of the fixed frame (18) is provided with an annular groove (24), and the outer wall of the sliding column (22) is fixedly connected with a fixed ball (23).

8. The integrated hole cleaning and slurry replacement device for diaphragm wall construction according to claim 7, characterized in that: The sliding column (22) is rotatably connected to the inner wall of the fixed frame (18), and the fixed ball (23) is slidably connected inside the annular groove (24).

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