Pile foundation casing with drawing damping function
By designing the pulling shock absorber structure on the pile foundation guard, the impact of soil disturbance on the inherent structure during the pile foundation guard is solved, and the effect of reducing vibration and improving construction safety is achieved.
Patent Information
- Application Number
- CN202420410662.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The soil disturbance caused by the pile foundation guard during the pulling process causes vibration and safety risks to nearby inherent structures such as subways.
Design a pile foundation guard with pulling and shock absorption function, adopting a pulling and shock absorption wheel structure, including a connecting rod and shock absorption wheel. The connecting rod is tilted on the groove of the pile foundation guard, and the shock absorption wheel is on the pile When the base shield is rotating and buried or pulled out, it contacts the soil and rotates to form a soil slide to reduce vibration.
Through the design of the shock absorber structure, the pile foundation guard can reduce soil disturbance during the drawing process, reduce the impact of vibration on the adjacent inherent structure, and improve construction safety.
Smart Images
Figure CN222500227U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pile foundation construction, in particular to a pile foundation casing with a pulling and shock absorbing function. Background Art
[0002] With the rapid development of my country's economic construction and the acceleration of urbanization, a large number of various types of buildings have been built in various places, especially in coastal cities with more developed economies. The advancement of urban transformation and the rapid development of urban rail transit construction have made the surrounding environment of pile foundation projects more complex and sensitive. They are often close to high-rise building basements, underground shopping malls, municipal projects such as underground parking lots, large subway stations, underground substations, large drainage and sewage treatment systems, etc. Typical projects include Nanjing Zifeng Tower, where the adjacent Nanjing Metro Line 1 tunnel is only 5m away from the foundation pit; the foundation pit of Shanghai Pacific Plaza Phase II is only 3.8m away from the outer edge of the subway Line 1 tunnel; the foundation pit of Shanghai Yueyang Plaza is close to the operating Jing'an Temple Station structure of Metro Line 2.
[0003] In summary, the current construction of pile foundation projects requires higher safety and stability. In pile foundation construction, the pile foundation casing needs to be buried in the construction area in advance to play the role of positioning the pile position and fixing protection. After the pouring is completed, the pile foundation casing needs to be pulled out as a whole. The pulling process of the pile foundation casing is often accompanied by a certain amount of soil disturbance, which often causes vibration to inherent structures such as nearby subways and causes certain safety risks. Summary of the invention
[0004] The utility model provides a pile foundation casing with a pulling and shock-absorbing function, so as to overcome the technical problem that soil disturbance occurring during the pulling process of the pile foundation casing affects adjacent inherent structures.
[0005] In order to achieve the above purpose, the technical solution of the utility model is:
[0006] A pile foundation casing with a pulling and shock-absorbing function comprises a pile foundation casing body and a pulling and shock-absorbing wheel structure; a groove is arranged on the pile foundation casing body; the pulling and shock-absorbing wheel structure comprises a connecting rod and a shock-absorbing wheel; both ends of the connecting rod are mounted on the groove wall of the groove, and the connecting rod is arranged obliquely to the axial direction of the pile foundation casing body; the shock-absorbing wheel is arranged on the connecting rod with the connecting rod as the axis, the wheel body of the shock-absorbing wheel close to the opening side of the groove exceeds the outer surface of the pile foundation casing body, and the shock-absorbing wheel contacts the soil and rotates when the pile foundation casing body is rotated to be buried in or pulled out of the working area.
[0007] Furthermore, the connecting rod is fixed on the groove wall of the groove, and the shock-absorbing wheel is rotatably connected to the connecting rod.
[0008] Furthermore, both ends of the connecting rod are rotatably arranged on the groove wall of the groove, and the shock-absorbing wheel is fixed on the connecting rod.
[0009] Furthermore, both ends of the connecting rod are connected to the groove wall of the groove via a rotary bearing structure.
[0010] Furthermore, two sides of the shock-absorbing wheel are fixed to the connecting rod by detachable fixing plates.
[0011] Furthermore, there are multiple pulling and damping wheel structures, and the multiple pulling and damping wheel structures are arranged in a spiral on the outer surface of the pile foundation casing body or in a ring on the outer surface of the lower end of the pile foundation casing body.
[0012] Furthermore, it is characterized in that the angle between the axis of the connecting rod and the axis direction of the pile foundation casing body is 15 to 30 degrees.
[0013] Furthermore, the volume of the shock-absorbing wheel is 1 / 3 to 1 / 2 of the volume of the groove space.
[0014] Furthermore, the distance that the damping wheel exceeds the outer surface of the pile foundation casing body on one side close to the groove opening is 1 / 5 to 1 / 7 of the diameter of the damping wheel.
[0015] Furthermore, the casing top of the pile foundation casing body is connected to the extension casing.
[0016] Beneficial effects of this program:
[0017] The pile foundation casing with a pulling and damping function disclosed in the utility model has the following effects because a pulling and damping wheel structure is arranged on the pile foundation casing:
[0018] (1) When the pile foundation casing is rotated and buried in the working area, the pull-out damping wheel structure set on the casing cuts the soil through which it moves, leaving a running soil slideway. Under the rolling of the damping wheel, the pile foundation casing can be accelerated to be buried in the predetermined position, thereby improving the working efficiency;
[0019] (2) When the pile casing is slowly pulled out after the operation is completed, the shock-absorbing wheel will be pulled out smoothly along the soil slide left during insertion, reducing vibration, avoiding impact on adjacent inherent structures, and ensuring the safety of the construction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0021] Figure 1 The utility model discloses a pile foundation casing with a pull-out shock-absorbing function, in which the pile foundation casing is buried in a construction foundation.
[0022] Figure 2 The utility model discloses a schematic diagram of the operating principle of a pile foundation casing with a pulling and shock absorbing function, in which the pile foundation casing is pulled out from a construction foundation by rotation.
[0023] Figure 3 The utility model discloses a connection structure diagram of a pile foundation casing with a pulling and shock absorbing function.
[0024] Figure 4 The utility model discloses a front view of a pulling and damping wheel structure of a pile foundation casing with a pulling and damping function.
[0025] Figure 5 The utility model discloses a side view of a pulling and damping wheel structure of a pile foundation casing with a pulling and damping function.
[0026] In the figure: 1, subway station; 2, uncast area; 3, cast area; 4, pile foundation casing body; 5, extension casing; 6, connection structure; 41, soil slide; 42, casing top; 43, pulling shock-absorbing wheel structure; 431, connecting rod; 432, fixing plate; 433, shock-absorbing wheel; 434, groove; 435, fixing nut; 436, rotating bearing structure. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1-5The pile foundation casing with pulling and shock absorbing function disclosed in the utility model comprises a pile foundation casing body 4 and a pulling and shock absorbing wheel structure 43; a groove 434 is arranged on the pile foundation casing body 4; the pulling and shock absorbing wheel structure 43 comprises a connecting rod 431 and a shock absorbing wheel 433; both ends of the connecting rod 431 are mounted on the groove wall of the groove 434, and the connecting rod 431 is inclined to the axial direction of the pile foundation casing body 4; the shock absorbing wheel 433 is arranged on it with the connecting rod 431 as the axis, and the wheel body of the shock absorbing wheel 433 close to the opening side of the groove 434 exceeds the outer surface of the pile foundation casing body 4, and the shock absorbing wheel 433 rotates by contacting the soil when the pile foundation casing body 4 is rotated to be buried or pulled out of the working area.
[0029] In this embodiment, Figure 1-2 The application of a pile foundation casing with a pulling and shock-absorbing function in the operation around a subway station 1 is demonstrated. After the construction work starts, when the pile foundation casing body 4 rotates at a uniform speed and is buried in the unfilled area 2 of the construction work area, the shock-absorbing wheel 433 arranged on the pile foundation casing body 4 rotates after contacting the soil, which produces a cutting effect on the soil. During the falling process of the pile foundation casing body 4, the shock-absorbing wheel 433 also leaves a spiral motion track, and leaves a soil slide 41 on its motion track; when the pouring operation is completed and the concrete solidifies, the pile foundation casing body 4 is pulled out from the poured area 3 at the same speed in the opposite direction as when it was buried, and the shock-absorbing wheel 433 arranged on it slides out along the soil slide 41 generated during the burial, which greatly reduces the soil disturbance caused by the pile foundation casing when it is pulled out. The smooth pulling out of the pile foundation casing body 4 reduces the impact on the surrounding operating subway stations and ensures the safety of construction.
[0030] Specifically, the connecting rod 431 is fixed on the groove wall of the groove 434 , and the shock-absorbing wheel 433 is rotatably connected to the connecting rod 431 .
[0031] In this embodiment, in order to ensure the effective operation of the shock-absorbing wheel 433, the pile foundation casing body 4 is provided with a groove 434 integrally arranged therewith, and the groove 434 can be in a hemispherical shape or other cubic structure, and the two ends of the connecting rod 431 can be welded and fixed on the groove wall of the groove 434, and the shock-absorbing wheel 433 can rotate with the connecting rod 431 as the axis through a rotating structure such as a rotating bearing. At this time, when the pile foundation casing is running, the connecting rod 431 remains relatively still with the pile foundation casing body 4, and the shock-absorbing wheel 433 rotates with the connecting rod 431 as the axis. As the pile foundation casing body 4 is buried and pulled out, the shock-absorbing wheel 433 performs corresponding cutting of the soil and moves along the soil slide 41, which can effectively reduce the disturbance of the soil during the pulling process of the pile foundation casing, and reduce its vibration impact on the surrounding operating subway stations.
[0032] Specifically, both ends of the connecting rod 431 are rotatably arranged on the groove wall of the groove 434, and the shock-absorbing wheel is fixed on the connecting rod.
[0033] This implementation Figure 5 As shown, in order to ensure the effective operation of the shock-absorbing wheel 433, the pile foundation casing body 4 is provided with a groove 434 integrally arranged therewith, and the groove 434 can be in a hemispherical shape or other cubic structure, and the two ends of the connecting rod 431 are rotatably arranged on the groove wall of the groove 434, and the shock-absorbing wheel 433 is fixed on the connecting rod 431. During the embedding and pulling process of the pile foundation casing body 4, the connecting rod 431 moves relative to the pile foundation casing body 4 and the groove 434, thereby driving the shock-absorbing wheel 433 fixed thereon to cut the soil and move along the soil slide 41, which can effectively reduce the disturbance of the soil during the pulling process of the pile foundation casing, and reduce its vibration impact on the surrounding operating subway stations.
[0034] Specifically, two ends of the connecting rod 431 are connected to the groove wall of the groove 434 via a rotary bearing structure.
[0035] In this embodiment, Figure 5 As shown, the pull-out damping wheel structure 43 is further optimized, and the connecting rod 431 can be set on the groove 434 by a rotating bearing structure 436 and a nut 435, and the damping wheel 433 is fixed on the connecting rod 431. The structural optimization is designed based on the problem that the pull-out damping wheel structure 43 may be damaged during operation. The connecting rod 431, the rotating bearing structure 436, and the nut 435 in this solution are detachable devices, which are easy to replace and carry, and improve the reuse rate of the equipment.
[0036] Specifically, two sides of the shock-absorbing wheel 433 are fixed to the connecting rod by detachable fixing plates 432 .
[0037] In this embodiment, Figure 5 As shown, the pull-out damping wheel structure 43 is further optimized, and the two ends of the connecting rod 431 are rotatably arranged on the groove wall of the groove 434, and the damping wheel 433 is fixed to the connecting rod 431 by means of a fixing plate 432 and the like. The structural optimization is designed based on the problem that the pull-out damping wheel structure 43 may be damaged during operation. The damping wheel 433 and the fixing plate 432 in this solution are both detachable devices, which are easy to replace and carry, and improve the reuse rate of the equipment.
[0038] Specifically, there are a plurality of pulling and damping wheel structures 43 , and the plurality of pulling and damping wheel structures 43 are arranged in a spiral on the outer surface of the pile foundation casing body or in a ring on the outer surface of the lower end of the pile foundation casing body.
[0039] In this embodiment, Figure 1-5As shown, three pulling and damping wheel structures 43 are arranged on the pile foundation casing body 4, and are evenly arranged in a ring along the outer surface of the lower end of the pile foundation casing 4. During the process of the pile foundation casing body 4 being rotated and buried, the three pulling and damping wheel structures 43 cooperate with each other to form three stable and smooth spiral soil slideways 41, which makes the process of pulling out the pile foundation casing body 4 more stable and smooth, further reduces the disturbance of the soil during the pulling process of the pile foundation casing, and reduces its vibration impact on the surrounding operating subway stations.
[0040] Specifically, the angle between the axis of the connecting rod 431 and the axis of the pile foundation casing body 4 is 15-30°.
[0041] In this embodiment, Figure 1-5 As shown, the angle between the axis of the connecting rod 431 and the axis direction of the pile foundation casing body 4 is 22.5°. During the process of the pile foundation casing body 4 being rotated and buried, the inclination of the pulling shock-absorbing wheel structure 43 has a better effect when cutting the soil, and it is easier to form a stable and smooth soil slide 41, which is more stable and smooth during the process of pulling out the pile foundation casing body 4, further reducing the disturbance of the soil during the pulling process of the pile foundation casing, and reducing its vibration impact on the surrounding operating subway stations.
[0042] Specifically, the volume of the shock-absorbing wheel is 1 / 3 to 1 / 2 of the volume of the groove space.
[0043] In this embodiment, Figure 1-5 As shown, the volume of the damping wheel 433 is 5 / 12 of the volume of the groove 434. When the pile casing body 4 is rotated and buried in the working area, the damping wheel 433 rotates and cuts the soil in contact, and the cut soil is temporarily stored in the groove 434. The preferred volume relationship between the damping wheel 433 and the groove 434 in this embodiment ensures that the groove 434 has enough space to store the soil without affecting the normal operation of the damping wheel 433.
[0044] Specifically, the distance that the damping wheel 433 protrudes from the outer surface of the pile foundation casing body 4 on the side close to the opening of the groove 434 is 1 / 5 to 1 / 7 of the diameter of the damping wheel 433 .
[0045] In this embodiment, Figure 1-5As shown, the distance that the damping wheel 433 exceeds the outer surface of the pile foundation casing body 4 near the opening of the groove 434 is 1 / 6 of the diameter of the damping wheel 433. During the process of the pile foundation casing body 4 being rotated and buried, the setting of the damping wheel 433 exceeding the outer surface of the pile foundation casing body 4 avoids the wheel body from exceeding too much and causing a large obstacle during the embedding process of the pile foundation casing body 4, and also makes the pulling damping wheel structure more effective in cutting the soil, and more easily forms a stable soil slide 41, which is more stable and smooth during the process of pulling out the pile foundation casing body 4, further reducing the disturbance of the soil during the pulling process of the pile foundation casing, and reducing its vibration impact on the surrounding operating subway stations.
[0046] Specifically, the casing top 42 of the pile foundation casing body 4 is connected to the extension casing 5 .
[0047] In this embodiment, Figure 3 As shown, when the pile foundation is deep and the required pile foundation casing is long during pile foundation operation, an extension casing 5 is connected to the casing top 42 of the pile foundation casing body 4 through a connecting structure 6, and a secondary extension casing can be further connected to the extension casing 5 according to application needs. The diameter of the extension casing 5 is larger than the pile foundation casing body 5. In non-operating states such as storage and transportation, the pile foundation casing body 4 and the extension casing 5 can be sleeved together, which can reduce the occupied space and save various costs such as transportation.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A pile foundation casing with pull-out shock-absorbing function, characterized in that: It comprises a pile foundation casing body (4) and a pulling shock-absorbing wheel structure (43); The pile foundation casing body (4) is provided with a groove (434); The pulling shock-absorbing wheel structure (43) comprises a connecting rod (431) and a shock-absorbing wheel (433); Both ends of the connecting rod (431) are mounted on the groove wall of the groove (434), and the connecting rod (431) is arranged obliquely with respect to the axial direction of the pile foundation casing body (4); The shock absorbing wheel (433) is arranged on the connecting rod (431) with the connecting rod (431) as an axis, and the wheel body of the shock absorbing wheel (433) close to the opening side of the groove (434) exceeds the outer surface of the pile foundation casing body (4). When the pile foundation casing body (4) is rotated to be buried in or pulled out of the working area, the shock absorbing wheel (433) contacts the soil and rotates.
2. The pile foundation casing with pull-out shock-absorbing function according to claim 1 is characterized in that: The connecting rod (431) is fixed on the groove wall of the groove (434), and the shock-absorbing wheel (433) is rotationally connected to the connecting rod (431).
3. The pile foundation casing with pull-out shock-absorbing function according to claim 1 is characterized in that: Both ends of the connecting rod (431) are rotatably arranged on the groove wall of the groove (434), and the shock-absorbing wheel (433) is fixed on the connecting rod (431).
4. The pile foundation casing with pull-out shock-absorbing function according to claim 3 is characterized in that: The two ends of the connecting rod (431) are connected to the groove wall of the groove (434) via a rotating bearing structure (436).
5. The pile foundation casing with pull-out shock-absorbing function according to claim 3 is characterized in that: The two sides of the shock-absorbing wheel (433) are fixed on the connecting rod (431) by detachable fixing plates (432).
6. The pile foundation casing with pull-out shock-absorbing function according to claim 4 or 5, characterized in that: The pulling and damping wheel structures (43) are multiple, and the multiple pulling and damping wheel structures (43) are arranged in a spiral on the outer surface of the pile foundation casing body (4) or in a ring on the outer surface of the lower end of the pile foundation casing body (4).
7. The pile foundation casing with pull-out shock-absorbing function according to claim 6 is characterized in that: The angle between the axis of the connecting rod (431) and the axis of the pile foundation casing body (4) is 15 to 30 degrees.
8. The pile foundation casing with pull-out shock-absorbing function according to claim 7 is characterized in that: The volume of the shock-absorbing wheel (433) is 1 / 3 to 1 / 2 of the spatial volume of the groove (434).
9. The pile foundation casing with pull-out shock-absorbing function according to claim 8 is characterized in that: The distance that the damping wheel (433) protrudes from the outer surface of the pile foundation casing body (4) on one side close to the opening of the groove (434) is 1 / 5 to 1 / 7 of the diameter of the damping wheel (433).
10. The pile foundation casing with pull-out shock-absorbing function according to claim 1, characterized in that: The casing top (42) of the pile foundation casing body (4) is connected to the extension casing (5).