A reinforcing device for diaphragm wall construction
By designing reinforcement components, the soil on both sides of the trench is uniformly compressed using components such as screw rods and movable clamps. This solves the problems of complex operation and uneven pressure in existing hydraulic cylinder reinforcement technologies, enabling rapid reinforcement and stabilization of the support guide piles, improving construction efficiency and reducing safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINQU GEOTECHNICAL ENG CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-26
AI Technical Summary
In existing diaphragm wall construction, multiple ordinary hydraulic cylinders are used to reinforce and support the guide piles and trench walls. These cylinders need to be pressurized simultaneously to prevent tilting. This process is complex and uneven pressure can easily cause the guide piles and subsequent walls to tilt, increasing safety hazards.
Reinforcement components, including screw rods, movable clamps, and cross-shaped reinforcement plates, are used to compress the soil on both sides of the trench section under uniform pressure, preventing the support guide piles from tilting, improving work efficiency and reducing safety hazards.
It enables rapid reinforcement and removal of the support guide piles, preventing wall tilting, improving construction efficiency and reducing safety risks.
Smart Images

Figure CN224412661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diaphragm wall construction technology, and in particular to a reinforcement device for diaphragm wall construction. Background Technology
[0002] A diaphragm wall is a foundation engineering project where a trenching machine is used on the ground to excavate a narrow, deep trench along the perimeter of the deep excavation project, with mud slurry as the wall support. After cleaning the trench, a steel cage is suspended inside, and then underwater concrete is poured using the tremie pipe method to form a unit trench segment. This process is repeated segment by segment to build a continuous reinforced concrete wall underground, serving as a water-cutting, seepage-proof, load-bearing, and water-retaining structure.
[0003] Existing reinforcement devices for diaphragm wall construction only use multiple ordinary hydraulic cylinders to reinforce the support guide piles and the trench walls of the trench section. Multiple hydraulic cylinders need to apply pressure synchronously to prevent the support guide piles from tilting. The operation is complicated and it is easy for the applied pressure to be different, causing the subsequently poured wall to tilt along with the support guide piles. This reduces work efficiency and increases safety hazards. Utility Model Content
[0004] This utility model discloses a reinforcement device for the construction of underground continuous walls, which aims to solve the technical problem that the existing construction of underground continuous walls relies on multiple ordinary hydraulic cylinders to reinforce and support the guide piles and trench walls. Synchronous pressure is required to prevent tilting, but the operation is complicated and uneven pressure can easily lead to tilting of the guide piles and subsequent walls.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A reinforcement device for diaphragm wall construction includes:
[0007] Support guide piles, two opposing support guide piles are fixedly connected to a fixing plate with equal internal spacing;
[0008] Lifting cylinders, two lifting cylinders are respectively set inside two fixed plates;
[0009] The reinforcement component is installed inside the support guide pile. The reinforcement component is used to reinforce the support guide pile after it is placed, maintain the stability of the trench wall, and prevent collapse.
[0010] In a preferred embodiment, the reinforcement component includes:
[0011] The lead screw is connected to the inside of the rotating hole opened on the upper side of the support guide pile through the bearing. One end of the lead screw is located on the upper outside of the support guide pile, and the other end is located inside the support guide pile.
[0012] The fixing block is fixedly connected to the upper side of the support guide pile, and a movable cylinder is fixedly connected inside the fixing block.
[0013] In a preferred embodiment, the reinforcement component further includes:
[0014] Two sliding blocks are connected to the outer walls of both ends of the lead screw via bearings. One sliding block is slidably connected to the inside of the groove opened on the upper side of the support guide pile, and the other sliding block is slidably connected to the inside of the movable groove opened on the lower inner wall of the support guide pile. The sliding block located on the upper side of the support guide pile is fixedly connected to one end of the moving cylinder.
[0015] The drive motor is fixedly connected to the upper side of one of the sliding blocks. The drive motor is located on the upper side of the support guide pile. The drive end of the drive motor is connected to the end of the lead screw located on the upper side of the support guide pile through a coupling.
[0016] The telescopic spring is fixedly connected to one side of the sliding block located inside the support guide pile, and the other end of the telescopic spring is fixedly connected to the inner wall of the support guide pile.
[0017] In a preferred embodiment, the reinforcement component further includes:
[0018] Multiple movable blocks are slidably connected to the outer wall of the lead screw at equal intervals. The multiple movable blocks can move up and down along the lead screw according to the different directions of the lead screw rotation. Both sides of the multiple movable blocks are provided with ratchet plates. The side of the multiple ratchet plates away from the lead screw is fixedly connected with return springs at equal intervals. The other end of the multiple return springs is fixedly connected to the inner wall of the support guide pile.
[0019] In a preferred embodiment, the reinforcement component further includes:
[0020] Multiple cross-shaped reinforcing plates are equally spaced and positioned on both sides of the support guide pile near the ratchet plate. One end of each pair of cross-shaped reinforcing plates located on the same horizontal line is fixedly connected to the corresponding ratchet plate. The multiple cross-shaped reinforcing plates are slidably connected to the interior of multiple sliding grooves opened on both sides of the corresponding support guide pile.
[0021] In a preferred embodiment, each of the lifting cylinders has a sliding connecting plate fixed to its lifting end. The sliding connecting plates are slidably connected to the slide rails inside the corresponding support guide piles. Rotary connecting rods are connected to one side of each sliding connecting plate at equal intervals via bearings. The other end of every two rotating connecting rods is connected to a fixed rod via a bearing. A rotating top plate is fixedly connected to the outer wall of the fixed rod. One end of the rotating top plate is connected to a rotating slot on one side of the support guide pile via a bearing. A pushing cylinder is fixedly connected to the lower side of the rotating top plate. One end of two pushing cylinders located on the same side is fixedly connected to a plug sleeve. The piston rod of the pushing cylinder with the plug sleeve is inserted into the plug sleeve of another pushing cylinder on the same horizontal line.
[0022] As can be seen from the above, the reinforcement device for underground continuous wall construction provided by this utility model has the technical effect of using reinforcement components to squeeze the soil on both sides of the trench section to quickly reinforce and release the support guide pile. In this process, the screw rod can drive the movable clamping block to squeeze the ratchet plate and drive the cross reinforcement plate to achieve uniform pressure on the soil on both sides of the trench section, preventing the subsequent wall to tilt along with the support guide pile due to different pressures. This improves work efficiency while reducing safety hazards. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a reinforcement device for underground continuous wall construction proposed in this utility model.
[0024] Figure 2 This is a side sectional view of a reinforcement device for underground continuous wall construction proposed in this utility model.
[0025] Figure 3 This is a side sectional view of the support guide pile of a reinforcement device for underground continuous wall construction proposed in this utility model.
[0026] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the support guide pile of the reinforcement device for underground continuous wall construction proposed in this utility model.
[0027] Figure 5 This is a schematic diagram of the internal structure of the reinforcement component of a reinforcement device for underground continuous wall construction proposed in this utility model.
[0028] Figure 6 for Figure 4 Enlarged schematic diagram of part A.
[0029] In the attached diagram: 1. Supporting guide pile; 2. Pushing cylinder; 3. Insertion sleeve; 4. Fixing rod; 5. Rotating top plate; 6. Reinforcing component; 601. Moving cylinder; 602. Fixing block; 603. Drive motor; 604. Racket plate; 605. Lead screw; 606. Cross reinforcing plate; 607. Sliding block; 608. Movable locking block; 609. Return spring; 610. Telescopic spring; 7. Sliding connecting plate; 8. Fixing plate; 9. Lifting cylinder; 10. Rotating connecting rod. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0031] The reinforcement device for diaphragm wall construction disclosed in this utility model is mainly applied to scenarios where existing diaphragm wall construction relies solely on multiple ordinary hydraulic cylinders to reinforce and support the guide piles and trench walls. Synchronous pressure is required to prevent tilting, but the operation is complex and uneven pressure can easily lead to tilting of the guide piles and subsequent walls.
[0032] Reference Figures 1-3 A reinforcement device for diaphragm wall construction, comprising:
[0033] Supporting guide piles 1, two opposing supporting guide piles 1 are fixedly connected to a fixing plate 8 with equal internal spacing;
[0034] Lifting cylinder 9, two lifting cylinders 9 are respectively arranged opposite to each other inside the two fixed plates 8;
[0035] The reinforcement component 6 is installed inside the support guide pile 1. The reinforcement component 6 is used to reinforce the support guide pile 1 after it is placed, maintain the stability of the trench wall and prevent collapse.
[0036] Reference Figures 1-6 In a preferred embodiment, the reinforcement component 6 includes:
[0037] The lead screw 605 is connected to the inside of the rotating hole opened on the upper side of the support guide pile 1 through the bearing. One end of the lead screw 605 is located on the upper outside of the support guide pile 1, and the other end is located inside the support guide pile 1.
[0038] The fixing block 602 is fixedly connected to the upper side of the support guide pile 1, and the moving cylinder 601 is fixedly connected inside the fixing block 602.
[0039] In this solution, reinforcement component 6 also includes:
[0040] Sliding block 607, two sliding blocks 607 are respectively connected to the outer walls of both ends of the lead screw 605 through bearings. One sliding block 607 is slidably connected to the inside of the groove opened on the upper side of the support guide pile 1, and the other sliding block 607 is slidably connected to the inside of the movable groove opened on the lower inner wall of the support guide pile 1. The sliding block 607 located on the upper side of the support guide pile 1 is fixedly connected to one end of the moving cylinder 601.
[0041] A drive motor 603 is fixedly connected to the upper side of one of the sliding blocks 607. The drive motor 603 is located on the upper side of the support guide pile 1. The drive end of the drive motor 603 is connected to the end of the lead screw 605 located on the upper side of the support guide pile 1 through a coupling.
[0042] The telescopic spring 610 is fixedly connected to one side of the sliding block 607 located inside the support guide pile 1, and the other end of the telescopic spring 610 is fixedly connected to the inner wall of the support guide pile 1.
[0043] In this solution, reinforcement component 6 also includes:
[0044] Multiple movable blocks 608 are slidably connected to the outer wall of the lead screw 605 at equal intervals. The multiple movable blocks 608 can move up and down along the lead screw 605 according to the rotation of the lead screw 605 in different directions. Both sides of the multiple movable blocks 608 are provided with ratchet plates 604. The side of the multiple ratchet plates 604 away from the lead screw 605 is fixedly connected with return springs 609 at equal intervals. The other end of the multiple return springs 609 is fixedly connected to the inner wall of the support guide pile 1.
[0045] In this solution, reinforcement component 6 also includes:
[0046] A cross-shaped reinforcing plate 606 is provided. Multiple cross-shaped reinforcing plates 606 are equally spaced and arranged on both sides of the support guide pile 1 near the ratchet plate 604. One end of each pair of cross-shaped reinforcing plates 606 located on the same horizontal line is fixedly connected to the corresponding ratchet plate 604. Multiple cross-shaped reinforcing plates 606 are slidably connected to the interior of multiple sliding grooves opened on both sides of the corresponding support guide pile 1.
[0047] When using the reinforcement device for diaphragm wall construction, the screw rod 605 drives the movable locking block 608 to press the ratchet plate 604, which in turn drives the cross reinforcement plate 606. This allows the cross reinforcement plate 606 to apply uniform pressure to the soil on both sides of the trench section, preventing uneven pressure from causing the subsequently poured wall to tilt along with the support guide pile 1. By activating the moving cylinder 601, the sliding block 607 drives the screw rod 605 to move. During this process, the telescopic spring 610 prevents the screw rod 605 from tilting during movement. Under this action, the movable locking block 608 disengages from the ratchet plate 604, releasing the lock. This process achieves quick contact locking, facilitating subsequent work and improving work efficiency.
[0048] Reference Figures 1-3 In a preferred embodiment, the lifting ends of multiple lifting cylinders 9 are all fixed with sliding connecting plates 7. The multiple sliding connecting plates 7 are all slidably connected to the slide rails provided inside the corresponding support guide piles 1. Rotary connecting rods 10 are connected at equal intervals on one side of the multiple sliding connecting plates 7 via bearings. The other end of every two rotating connecting rods 10 is connected to a fixed rod 4 via a bearing. A rotating top plate 5 is fixedly connected to the outer wall of the fixed rod 4. One end of the rotating top plate 5 is connected to the rotating slot hole opened on one side of the support guide pile 1 via a bearing. A pushing cylinder 2 is fixedly connected to the lower side of the rotating top plate 5. One end of two pushing cylinders 2 located on the same side is fixedly connected to a plug sleeve 3. The piston rod of the pushing cylinder 2 with the plug sleeve 3 is inserted into the plug sleeve 3 of another pushing cylinder 2 on the same horizontal line.
[0049] When using the reinforcement device for diaphragm wall construction, the supporting guide piles 1 are pressed against the soil on both sides of the trench wall by the interaction of the opposing pushing cylinders 2, so as to fix the two supporting guide piles 1 laterally. The plug sleeve 3 prevents the opposing pushing cylinders 2 from being misaligned when they push each other. After the supporting guide piles 1 are fixed, the lifting cylinder 9 is opened and the rotating top plate 5 that fixes the pushing cylinder 2 is rotated back into the supporting guide pile 1 through the sliding connecting plate 7, so as to avoid the subsequent work being unable to be carried out due to the rotating top plate 5.
[0050] Working Principle: When using the reinforcement device for diaphragm wall construction, firstly, a trench section is excavated using a trenching machine. Then, the opposing pushing cylinders 2 on two pairs of support guide piles 1 are activated, bringing the opposing pushing cylinders 2 into contact. One end of each pair of pushing cylinders 2 is inserted into the insertion sleeve 3 on the opposing pushing cylinder 2. The insertion sleeve 3 prevents the opposing pushing cylinders 2 from misaligning when pushing against each other. After the opposing pushing cylinders 2 are brought into contact, workers use a crane to lift the two pairs of support guide piles 1 into both ends of the trench section. Then, the pushing cylinders are activated... Cylinder 2, under the interaction of the opposing pushing cylinders 2, presses the support guide pile 1 against the soil on both sides of the trench wall. After the two support guide piles 1 are horizontally fixed, the drive motor 603 is then turned on to drive the lead screw 605 to rotate. At the same time as the lead screw 605 rotates, multiple movable locking blocks 608 slidably connected to the outer wall of the lead screw 605 move downward. During this process, the multiple movable locking blocks 608 continuously squeeze the ratchet plate 604 that is in contact with them. As the movable locking blocks 608 squeeze the ratchet plate 604, the ratchet plate 604 overcomes the elastic force of the return spring 609 and the cross fixedly connected to it is released. The reinforcing plate 606 moves outward and continuously compresses the soil on both sides of the trench. After the soil is appropriately compressed and the trench wall becomes stable, the drive motor 603 is turned off, and the movable locking block 608 engages with the ratchet teeth of the ratchet plate 604 to lock it in place, ensuring the stability of the reinforcement during operation. After the support guide pile 1 is reinforced, the pushing cylinder 2 is opened to retract it. Then, the lifting cylinder 9 is opened to rotate the rotating top plate 5, which fixes the pushing cylinder 2, back into the support guide pile 1 via the sliding connecting plate 7, preventing subsequent work from being impossible due to the rotating top plate 5. Then, the support protection is restored. Next, the steel cage is hoisted, the concrete guide pipe is installed, and the concrete is poured. After the concrete reaches a certain strength, the sliding block 607 is driven by the moving cylinder 601 to move the lead screw 605. During this process, the telescopic spring 610 prevents the lead screw 605 from tilting during movement. Under this action, the movable locking block 608 is disengaged from the ratchet plate 604, and the locking is released. The ratchet plate 604 is reset under the action of the return spring 609, and at the same time, the cross reinforcement plate 606 is removed from the soil, and the reinforcement is canceled. Then, the workers use a crane to lift out the two support guide piles 1 and move them to the next trench section.
[0051] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A reinforcement device for diaphragm wall construction, characterized in that, include: Supporting guide piles (1), two opposing supporting guide piles (1) are fixedly connected to a fixing plate (8) with equal internal spacing. Lifting cylinders (9), two lifting cylinders (9) are respectively arranged opposite to each other inside two fixed plates (8); The reinforcement component (6) is installed inside the support guide pile (1). The reinforcement component (6) is used to reinforce the support guide pile (1) after it is placed, maintain the stability of the trench wall and prevent collapse.
2. The reinforcement device for diaphragm wall construction according to claim 1, characterized in that, The reinforcement component (6) includes: The lead screw (605) is connected to the inside of the rotating hole opened on the upper side of the support guide pile (1) through the bearing. One end of the lead screw (605) is located on the upper outside of the support guide pile (1), and the other end is located inside the support guide pile (1). The fixing block (602) is fixedly connected to the upper side of the support guide pile (1), and the fixing block (602) is fixedly connected to the moving cylinder (601).
3. The reinforcement device for diaphragm wall construction according to claim 2, characterized in that, The reinforcement component (6) also includes: Sliding blocks (607) are connected to the outer walls of both ends of the lead screw (605) via bearings. One sliding block (607) is slidably connected to the inside of the groove opened on the upper side of the support guide pile (1), and the other sliding block (607) is slidably connected to the inside of the movable groove opened on the lower inner wall of the support guide pile (1). The sliding block (607) located on the upper side of the support guide pile (1) is fixedly connected to one end of the moving cylinder (601). A drive motor (603) is fixedly connected to the upper side of one of the sliding blocks (607). The drive motor (603) is located on the upper side of the support guide pile (1). The drive end of the drive motor (603) is connected to the end of the lead screw (605) located on the upper side of the support guide pile (1) through a coupling. The telescopic spring (610) is fixedly connected to one side of the sliding block (607) located inside the support guide pile (1), and the other end of the telescopic spring (610) is fixedly connected to the inner wall of the support guide pile (1).
4. The reinforcement device for diaphragm wall construction according to claim 3, characterized in that, The reinforcement component (6) also includes: Movable blocks (608) are slidably connected to the outer wall of the lead screw (605) at equal intervals. The multiple movable blocks (608) can move up and down along the lead screw (605) according to the rotation of the lead screw (605) in different directions. Both sides of the multiple movable blocks (608) are provided with ratchet plates (604). The side of the multiple ratchet plates (604) away from the lead screw (605) is fixedly connected with return springs (609) at equal intervals. The other end of the multiple return springs (609) is fixedly connected to the inner wall of the support guide pile (1).
5. A reinforcement device for diaphragm wall construction according to claim 4, characterized in that, The reinforcement component (6) also includes: A cross-shaped reinforcing plate (606) is provided at equal intervals on both sides of the support guide pile (1) near the ratchet plate (604). One end of each pair of cross-shaped reinforcing plates (606) located on the same horizontal line is fixedly connected to the corresponding ratchet plate (604). The multiple cross-shaped reinforcing plates (606) are slidably connected to the multiple sliding grooves opened on both sides of the corresponding support guide pile (1).
6. A reinforcement device for diaphragm wall construction according to claim 1, characterized in that, Each of the lifting cylinders (9) has a sliding connecting plate (7) fixed at its lifting end. Each sliding connecting plate (7) is slidably connected to the slide rail inside the corresponding support guide pile (1). Each of the sliding connecting plates (7) has a rotating connecting rod (10) connected at equal intervals on one side by a bearing. The other end of each pair of rotating connecting rods (10) is connected to a fixed rod (4) by a bearing.
7. A reinforcement device for diaphragm wall construction according to claim 6, characterized in that, The outer wall of the fixed rod (4) is fixedly connected to a rotating top plate (5). One end of the rotating top plate (5) is connected to the rotating slot hole opened on one side of the support guide pile (1) through a bearing. The lower side of the rotating top plate (5) is fixedly connected to a pushing cylinder (2). One end of the two pushing cylinders (2) located on the same side is fixedly connected to a plug sleeve (3). The piston rod of the pushing cylinder (2) with the plug sleeve (3) is inserted into the plug sleeve (3) of another pushing cylinder (2) on the same horizontal line.