Anti-inclination device for open caisson
By setting up movable positioning and weight-adding correction components on the well body using I-beams, real-time dynamic adjustment during the caisson construction process was achieved, solving the lag problem of traditional correction structures and improving construction accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional caisson correction structures cannot achieve real-time dynamic adjustment, resulting in significant correction lag, which makes it difficult to meet the demands of high-precision and high-efficiency modern construction.
The system uses I-beams mounted on the well body, equipped with movable positioning components and weight-increasing correction components. The flexible movement and position locking of the I-beams are achieved by driving the push plate and limit plate with a motor. Combined with the precise loading and friction anchoring of the concrete slab, dynamic correction is realized.
The correction response time has been shortened to the minute level, significantly reducing the risk of settlement deviation caused by caisson tilting and ensuring the controllability of the posture during construction.
Smart Images
Figure CN224031730U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of caisson construction equipment, specifically, it relates to a caisson anti-tilting device. Background Technology
[0002] A caisson is a cylindrical or box-shaped structural element that sinks to a designed elevation using its own weight to overcome the frictional resistance of the well wall. It is widely used in bridge piers, sewage pumping stations, large equipment foundations, and underground engineering projects. The construction process includes: placing the caisson in a pre-excavated wellhead; sinking it into place under gravity; pouring concrete to seal the bottom and filling the wellbore; and finally forming a stable foundation. Due to its strong adaptability, this technology can serve various complex scenarios such as shield tunnel assembly shafts, civil defense shelters, and railway station hydraulic structures, making it one of the core methods for deep foundation construction.
[0003] During the caisson lowering process, tilting can easily occur due to excavation deviations, improper hoisting control, or uneven friction distribution, severely impacting construction efficiency and quality. Current correction technologies (such as I-beam flanges with clamps and bracing rods to fix the caisson body) reduce damage to the caisson structure and improve the stability of the concrete slab through multi-point constraints, but their correction logic has significant shortcomings: the I-beams must be manually installed on the lagging side after the caisson has already tilted, a cumbersome process reliant on post-mortem intervention, making dynamic monitoring and real-time adjustment during the lowering process impossible. This passive correction mechanism results in a significant lag effect, failing to meet the demands of high-precision, high-efficiency modern construction.
[0004] Based on this, this utility model proposes a caisson anti-tilting device to achieve rapid response and adaptive correction, thereby solving the problems existing in the prior art and improving the accuracy and efficiency of caisson construction. Utility Model Content
[0005] In view of this, the main purpose of this utility model is to provide a caisson anti-tilting device to solve the problem that traditional correction structures cannot dynamically adjust the position in real time inside the caisson and have a prominent correction lag.
[0006] To achieve the above objectives, the basic concept of the technical solution adopted by this utility model is as follows:
[0007] A caisson anti-tilting device is installed on the caisson body, including an I-beam installed on the caisson body. The I-beam is equipped with a correction and adjustment mechanism. The correction and adjustment mechanism includes a movable positioning component and a weight-increasing correction component. The movable positioning component is located at the lower end of the I-beam and matches the caisson body. The weight-increasing correction component is located at the upper end of the I-beam and matches the concrete slab.
[0008] In a preferred embodiment, the movable positioning assembly includes a roller and a support frame, the support frame being disposed at the bottom end of one side wall of the I-beam, and the roller being rotatably mounted on the support frame and matching a groove pre-reserved on the outer side wall of the well body.
[0009] In a preferred embodiment, the movable positioning component further includes a motor disposed below the web of the I-beam, the output end of the motor being provided with a lead screw, a push plate being threadedly connected to the lead screw, and a limit plate being provided on one side of the push plate.
[0010] In a preferred embodiment, a locking block is provided above the limiting plate, and the locking block matches a sliding groove provided below the web of the I-beam.
[0011] In a preferred embodiment, the weight-adding and correction assembly includes a sliding sleeve disposed on the outer wall of the I-beam, and a limiting slide plate is slidably disposed on the sliding sleeve, the sliding sleeve being matched with the limiting slide plate.
[0012] In a preferred embodiment, the outer wall of the limiting slide plate is further provided with a plurality of limiting holes, the outer wall of the sliding sleeve is provided with a threaded hole, a limiting screw is threadedly connected to the threaded hole, and a handle is provided on the outer wall of the end of the limiting screw away from the threaded hole.
[0013] In a preferred embodiment, the bottom end of the limiting slide is provided with an extrusion block, which matches the concrete slab.
[0014] In a preferred embodiment, the extrusion block is a rubber component.
[0015] In a preferred embodiment, the distance between two adjacent limiting holes matches the thickness of the concrete slab.
[0016] In a preferred embodiment, the inner wall of the limiting hole is adapted to the outer wall of the limiting screw.
[0017] Compared with the prior art, the present invention provides a caisson anti-tilting device, which has the following beneficial effects:
[0018] By setting up the active positioning component, it is possible to: facilitate the release of limit and movement control, start the motor to drive the push plate and limit plate to move in the opposite direction to the inner wall of the well, and release the squeezing constraint between the H-beam and the well body; form a rolling migration mechanism, move the H-beam, and use its bottom rollers to roll in the limit groove with low resistance, so as to drive the H-beam to move flexibly along the circumference of the well body to the target tilt position, which facilitates the adjustment of the position of the H-beam on the well body; dynamically reset and lock, the motor runs in the opposite direction to push the limit plate to reset, and form a rigid limit through the squeezing of the outer wall and the inner wall of the well body, and complete the locking of the H-beam position; this component breaks through the bottleneck of the lag of traditional manual installation, shortens the correction response time to the minute level, and significantly reduces the risk of settlement deviation caused by the tilt of the caisson.
[0019] By incorporating the weight-adjusting component, the following can be achieved: Limit release and concrete slab loading are realized; the limit screw is rotated to disengage from the limit hole to release constraint, and the concrete slab is precisely placed after the limit slide plate is lifted; pressure self-balancing locking is achieved; the release of the slide plate allows it to drive the extrusion block to press down on the concrete slab under gravity, and then the forward rotation of the limit screw engages with the limit hole, forming a three-stage pressure transmission chain of "slide plate-extrusion block-concrete slab"; anti-displacement protection is ensured by effectively suppressing concrete slab slippage caused by construction vibration or load changes through the frictional anchoring effect between the concrete slab and the I-beam; this component overcomes the problem of traditional correction structures being unable to dynamically counterweight, achieving simultaneous optimization of weight-adjusting and positional stability, ensuring controllable attitude during the caisson sinking process. It solves the problems of traditional correction structures, such as the inability to dynamically adjust the position in real time within the caisson and the significant lag in correction. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a diagram showing the working condition of the well body tilting in the foundation pit before the use of the anti-tilting device for the caisson of this utility model;
[0022] Figure 2 This is a diagram showing the working condition of the caisson anti-tilt device after the tilt of the caisson body in the foundation pit has been corrected.
[0023] Figure 3 This is a schematic diagram of the anti-tilting device for caissons of this utility model;
[0024] Figure 4 This is an exploded view of the anti-tilting device for caissons of this utility model;
[0025] Figure 5This is a schematic diagram of the structure of the movable positioning component of this utility model;
[0026] Figure 6 This is a schematic diagram of the structure of the weight-adding and correction component of this utility model.
[0027] [Explanation of Key Component Symbols]
[0028] 1. Well body; 11. Groove; 2. I-beam; 3. Correction and adjustment mechanism; 31. Movable positioning component; 311. Roller; 312. Support frame; 313. Motor; 314. Screw; 315. Push plate; 316. Limiting plate; 317. Slide groove; 32. Weight-increasing correction component; 321. Sliding sleeve; 322. Limiting slide plate; 323. Limiting hole; 324. Limiting screw; 325. Handle; 326. Extrusion block; 4. Concrete slab. Detailed Implementation
[0029] The structure of this anti-tilting device for caissons will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.
[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0033] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 9 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0034] The following is combined Figures 1 to 6 The structure of the anti-tilting device for caissons of this utility model is described.
[0035] A caisson anti-tilting device is installed on the caisson body 1 and can move along the edge of the upper opening of the caisson body 1. It includes an I-beam 2 installed on the caisson body 1. A correction adjustment mechanism 3 is installed on the I-beam 2. The correction adjustment mechanism 3 includes a movable positioning component 31 and a weight-increasing correction component 32. The movable positioning component 31 is located at the lower end of the I-beam 2 and matches the caisson body 1. It is used to adjust the position of the I-beam 2 at the edge of the upper opening of the caisson body 1 during use. The weight-increasing correction component 32 is located at the upper end of the I-beam 2. It is used to add a concrete slab 4 as needed during use to correct the tilt of the slow-settling part of the caisson body 1.
[0036] In the above description, the I-beam 2 is fitted and installed at the upper opening edge of the well body 1 and can move on the well body 1. The well body 1 can be an arc-shaped cylindrical caisson structure or a rectangular cylindrical caisson structure. When it is an arc-shaped cylindrical caisson structure, the I-beam 2 is installed on the side of the well body 1 where settlement is slow. In use, since the well body 1 is a large-volume reinforced concrete structure, it is not convenient to lift and adjust the position of the well body 1 when it is tilted. Therefore, when the well body 1 tilts in the foundation pit, the I-beam 2 is installed at the upper opening edge of the well body 1, and then it is adjusted to the position where the well body 1 settles slowly using equipment such as excavators. Then it is locked, and the position of the well body 1 where settlement is slow is corrected by adding a concrete slab 4 on the upper side of the I-beam 2.
[0037] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 5As shown, the movable positioning component 31 includes a roller 311 and a support frame 312. The support frame 312 is installed at the bottom of one side wall of the I-beam 2. The roller 311 is rotatably installed on the support frame 312 and cooperates with the groove 11 reserved on the outer side wall of the well body 1.
[0038] In the above description, by engaging the roller 311 in the groove 11, the I-beam 2 can be movably connected to the well body 1, so that the position of the I-beam 2 on the well body 1 can be adjusted as needed during use.
[0039] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 5 As shown, the movable positioning component 31 also includes a motor 313 disposed below the web of the I-beam 2. The output end of the motor 313 is provided with a lead screw 314. The outer wall of the lead screw 314 is threadedly connected to a push plate 315. A limit plate 316 is fixedly disposed on one side of the outer wall of the push plate 315, and a locking block is disposed above the limit plate 316 to cooperate with the sliding groove 317 disposed below the web of the I-beam 2.
[0040] In the above description, motor 313 is a servo motor. When the well body 1 tilts in the pit, motor 313 is started first. Its output end will drive the lead screw 314 to reverse. As the lead screw 314 reverses, it will drive the push plate 315 to move towards the side closer to motor 313. As the push plate 315 moves, it will drive the limiting plate 316 to move. At this time, one side of the outer wall of the limiting plate 316 can be released from the contact and limitation with the inner wall of the well body 1. At this time, the limitation on the H-beam 2 can be released. Then, the H-beam 2 can be moved by using an excavator or other tools. As the force generated by moving the H-beam 2 is generated, the H-beam 2 can drive the roller 311 to rotate in the groove 11. This allows the I-beam 2 to rotate around the well body 1, enabling it to move to any position within the well body 1. Based on the tilt angle of the well body 1, the I-beam 2 can be moved to the end where the sinking is slower. Once in the appropriate position, the motor 313 can be started to drive the lead screw 314 to rotate forward. The lead screw 314 then drives the push plate 315 and the limiting plate 316 to move towards one side of the inner wall of the well body 1. Ultimately, one outer wall of the limiting plate 316 is pressed tightly against the inner wall of the well body 1, thus squeezing and limiting the I-beam 2 and preventing displacement during subsequent weight correction, which would affect the sinking process.
[0041] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 6As shown, the weight-adding and correction component 32 includes a sliding sleeve 321 installed on the outer wall of the I-beam 2. A limiting slide plate 322 is slidably provided on the sliding sleeve 321. The concrete slab 4 can be limited by the cooperation between the sliding sleeve 321 and the limiting slide plate 322.
[0042] In the above description, the concrete slab 4 is placed on the upper side of the web of the I-beam 2 and positioned between the two sliding sleeves 321. The limiting slide plate 322 is adjusted to press and limit it, so as to ensure that the position of the I-beam 2 changes during the process of weight increase and correction.
[0043] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 6 As shown, the outer wall of the limiting slide plate 322 is also provided with a plurality of limiting holes 323, the outer wall of the sliding sleeve 321 is provided with a threaded hole, the threaded hole is internally connected to a limiting screw 324, a handle 325 is provided on the outer wall of the limiting screw 324 away from the threaded hole, and a pressing block 326 is provided at the bottom end of the limiting slide plate 322.
[0044] In the above description, the distance between adjacent limiting holes 323 is equal to the thickness of a concrete slab 4. Thus, each time a concrete slab 4 is added, there is a corresponding limiting hole 323, which makes it easier to adjust the position of the limiting slide plate 322 and improve the compression limiting stability of the concrete slab 4.
[0045] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 6 As shown, the inner wall of the limiting hole 323 fits snugly against the outer wall of the limiting screw 324, and the extrusion block 326 is made of rubber, which ensures the stability of the limiting screw 324 after it is engaged with the inner wall of the limiting hole 323. By making the extrusion block 326 of rubber, the limiting friction between it and the concrete slab 4 can be increased, thereby improving the limiting stability of the concrete slab 4.
[0046] The construction and use of the caisson anti-tilting device described in this embodiment are as follows:
[0047] When the well body 1 tilts in the pit, the motor 313 is started first. Its output end will drive the lead screw 314 to reverse. As the lead screw 314 reverses, it will drive the push plate 315 to move towards the side closer to the motor 313. As the push plate 315 moves, it will drive the limiting plate 316 to move. At this time, one side of the outer wall of the limiting plate 316 can be released from the contact and limitation with the inner wall of the well body 1. At this time, the limitation on the H-beam 2 can be released. Then, the H-beam 2 can be moved by using an excavator or other tools. As the force generated by moving the H-beam 2 is generated, the H-beam 2 will drive the roller 311 to rotate in the groove 11, thereby moving the H-beam. 2. The I-beam 2 rotates around the well body 1, allowing it to move freely within the well body 1. Based on the tilt angle of the well body 1, the I-beam 2 can be moved to the end where the sinking is slower. After reaching the appropriate position, the motor 313 is activated to drive the lead screw 314 to rotate forward. The lead screw 314 then drives the push plate 315 and the limiting plate 316 to move towards one side of the inner wall of the well body 1. This ensures that one outer wall of the limiting plate 316 is tightly pressed against the inner wall of the well body 1, thus squeezing and limiting the I-beam 2 and preventing displacement during subsequent weight correction, which would affect the sinking process.
[0048] When placing the concrete slab 4, first reverse the handle 325, causing it to rotate the limiting screw 324, thus displacing it outwards. As the limiting screw 324 rotates, it disengages from the inner wall of the limiting hole 323 on the outer wall of the limiting slide plate 322, releasing the limiting position between the limiting slide plate 322 and the sliding sleeve 321. Then, pull the limiting slide plate 322 upwards, and place the concrete slab 4 between the top of the I-beam 2 and the sliding sleeve 321. The placement can be adjusted according to the sinking speed. After the same number of concrete slabs 4 are placed, the limiting slide plate 322 can be released. At this time, the limiting slide plate 322 moves downward, causing the extrusion block 326 to contact the top surface of the top concrete slab 4. Then, the limiting screw 324 is rotated forward, so that the outside of the limiting screw 324 is engaged with the inner wall of the limiting hole 323, thereby completing the limiting of the limiting slide plate 322. At the same time, the extrusion block 326 extrudes and limits the concrete slab, thereby preventing the concrete slab 4 from shifting on the I-beam 2 and affecting the sinking of the well body 1.
[0049] It should be noted that the motor 313 mentioned above is a device with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, its power supply method can be selected according to different working conditions, which will not be elaborated here.
[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.
Claims
1. A caisson anti-tilting device, installed on the caisson body (1), characterized in that: The system includes an I-beam (2) mounted on the well body (1), and a correction adjustment mechanism (3) mounted on the I-beam (2). The correction adjustment mechanism (3) includes a movable positioning component (31) and a weight-increasing correction component (32). The movable positioning component (31) is mounted on the lower end of the I-beam (2) and is matched with the well body (1). The weight-increasing correction component (32) is mounted on the upper end of the I-beam (2) and is matched with the concrete slab (4).
2. The anti-tilting device for a caisson as described in claim 1, characterized in that: The movable positioning component (31) includes a roller (311) and a support frame (312). The support frame (312) is located at the bottom of one side wall of the I-beam (2). The roller (311) is rotatably mounted on the support frame (312) and matches the groove (11) reserved on the outer side wall of the well body (1).
3. The anti-tilting device for caissons as described in claim 1, characterized in that: The movable positioning component (31) also includes a motor (313) disposed below the web of the I-beam (2). The output end of the motor (313) is provided with a lead screw (314), and a push plate (315) is threadedly connected to the lead screw (314). A limit plate (316) is provided on one side of the push plate (315).
4. The anti-tilting device for a caisson as described in claim 3, characterized in that: A locking block is provided above the limiting plate (316), and the locking block matches the sliding groove (317) provided below the web of the I-beam (2).
5. The anti-tilting device for a caisson as described in claim 1, characterized in that: The weight-adding and correction component (32) includes a sliding sleeve (321) disposed on the outer wall of the I-beam (2), and a limiting slide plate (322) is slidably disposed on the sliding sleeve (321), and the sliding sleeve (321) matches the limiting slide plate (322).
6. The anti-tilting device for a caisson as described in claim 5, characterized in that: The outer wall of the limiting slide plate (322) is also provided with several limiting holes (323), and the outer wall of the sliding sleeve (321) is provided with a threaded hole. The threaded hole is connected to a limiting screw (324), and a handle (325) is provided on the outer wall of the limiting screw (324) away from the threaded hole.
7. The anti-tilting device for a caisson as described in claim 6, characterized in that: The bottom end of the limiting slide plate (322) is provided with an extrusion block (326), which is matched with the concrete slab (4).
8. The anti-tilting device for a caisson as described in claim 7, characterized in that: The extrusion block (326) is a rubber component.
9. A caisson anti-tilting device as described in claim 6, characterized in that: The distance between two adjacent limiting holes (323) is matched with the thickness of the concrete slab (4).
10. A caisson anti-tilting device as described in claim 6, characterized in that: The inner wall of the limiting hole (323) is adapted to the outer wall of the limiting screw (324).