Foundation pit prestressed pipe pile supporting device
Through innovative design of support pipes, support seats, through rods and positioning adjustment components, the problems of vertical pressing and displacement of pipe piles in foundation pit construction were solved, improving the stability of foundation pit support and the vertical correction capability of pipe piles.
Patent Information
- Application Number
- CN202423242529.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing pipe pile support devices are difficult to ensure vertical driving of pipe piles during foundation pit construction and are prone to displacement, especially in silty soil layers where stability is poor, leading to construction difficulties.
A prestressed pipe pile support device for foundation pits was designed, including a support pipe, a support seat, a through rod, an arc plate, a positioning adjustment component, and a clamping component. By using the combination of the support spring, the positioning adjustment component, and the clamping component, the vertical pressing of the pipe pile and the correction of deviation are ensured, thereby improving stability.
It enables rapid installation and vertical driving of pipe piles, reduces reliance on driving structures, and enhances the stability of foundation pit support and the vertical correction effect of pipe piles.
Smart Images
Figure CN223813761U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a prestressed pipe pile support structure, in particular to a foundation pit prestressed pipe pile support device. BACKGROUND
[0002] The prestressed concrete pipe pile of the pre-tensioning method is currently widely used in railway systems and is expanded to the fields of industrial and civil buildings, municipal administration, metallurgy, port, highway and the like. In the engineering construction of river and coastal areas, the lower silt soil layer presents a flow-plastic saturated state, has low strength, great thixotropy and poor permeability, and is prone to cause the deviation or displacement fracture of the pipe pile during the pile pressing or foundation pit excavation process. Therefore, the support device is arranged at the pipe pile driving position before the construction of the pipe pile to increase the support stability of the pipe pile on the ground.
[0003] At present, the support mode of the pipe pile support device is to place the base at the position of the pipe pile driven into the foundation pit, the base is attached to the foundation pit, the drill bit structure is driven by the base to penetrate into the foundation pit, and the support of the outer pipe pile is realized. However, the support device needs to use the motor as the driving structure, which is not conducive to the fixation of the position during the actual operation of the pipe pile, cannot ensure the vertical support of the pipe pile, and is prone to cause the deviation of the pipe pile. Based on the above reasons, it is necessary to design a support device which is simple in structure, can be quickly fixed in the foundation pit, and is convenient for the vertical pressing of the pipe pile. CONTENT OF THE UTILITY MODEL
[0004] In view of the above problems existing in the prior art, the utility model aims at providing a foundation pit prestressed pipe pile support device, which can be quickly fixed in the foundation pit and is convenient for the vertical pressing of the pipe pile.
[0005] To achieve the above-mentioned purpose, the utility model technical scheme is as follows:
[0006] A foundation pit prestressed pipe pile support device, which comprises a support pipe, a support base arranged on the outer side of the support pipe, and a plurality of penetrating rods, the lower end of the support base is provided with a supporting spring, the penetrating rods are rotationally arranged on the support base and are connected with the supporting spring, the lower end of the support pipe is provided with a plurality of arc-shaped plates, the upper end of the support pipe is provided with a pressing end, the outer sides of the support pipe are provided with positioning and adjusting assemblies on the upper and lower sides, which are used for the vertical correction of the pipe pile and the penetration of the foundation pit.
[0007] Preferably, the inner side of the lower end of the arc-shaped plate is provided with a sharp part, and the plurality of arc-shaped plates are annularly distributed on the support base.
[0008] Preferably, the inner side of the upper end of the support pipe is provided with a plurality of clamping assemblies, the clamping assemblies are provided with elastic plates at the ends away from the support pipe, the lower end of the elastic plate is inwardly inclined, and the plurality of elastic plates are annularly distributed in the support pipe.
[0009] As preferred, the clamping assembly comprises a sleeve pipe fixed on the support pipe, the inner side of the sleeve pipe is provided with a damping pad, the damping pad is provided with a platform spring, the wide end of the platform spring is provided with a rubber block connected with the elastic plate.
[0010] As preferred, the positioning and adjusting assembly comprises an adjusting bolt threaded through the support pipe and a positioning piece provided through the support pipe.
[0011] As preferred, the adjusting bolt comprises a threaded pipe provided through the support pipe, a threaded rod is threadedly connected in the threaded pipe, and the end of the threaded rod outside the support pipe is a power driving end.
[0012] As preferred, the positioning piece comprises a movable pipe fixed on the support pipe, a tubular spring is fixed in the middle of the inner side of the movable pipe, a jacking rod is sleeved on the middle part of the tubular spring, a positioning rod is fixed on the end of the jacking rod, and the jacking rod and the positioning rod are both slidably connected with the movable pipe.
[0013] Compared with the prior art, the foundation pit prestressed pipe pile support device provided by the utility model can be quickly fixed in the foundation pit, the vertical pressing of the pipe pile is facilitated, and the offset pipe pile can be corrected. Specifically, the setting of the upper end jacking end and the lower end multiple arc-shaped plates of the support pipe facilitates the fixing of the position of the support device by the static pressure equipment of the pipe pile directly used by the support device, reduces the setting of other driving structures, and simplifies the structure of the support device; the gaps provided between the multiple arc-shaped plates facilitate the penetration of the arc-shaped plates into the foundation pit during the penetration of the support device, the inclined setting of the penetration rod and the support seat can enlarge the contact area of the device and the foundation pit, improve the use stability of the device, ensure the horizontal setting of the foundation pit, and are beneficial to the vertical pressing of the pipe pile.
[0014] In addition, the setting of the positioning and adjusting assembly on the upper and lower sides of the support pipe makes the length change of the positioning rod in the positioning piece reflect the pressing state of the pipe pile during the pressing of the pipe pile, ensures whether the pipe pile is vertically penetrated, the offset angle of the pipe pile can be adjusted by the jacking of the threaded rod in the adjusting bolt to the pipe pile, the vertical correction of the pipe pile on the support device is realized, and the vertical pressing of the pipe pile is facilitated.
[0015] It should be understood that the general description and the details herein are only exemplary and illustrative, rather than for limiting the disclosure.
[0016] The present application file provides a variety of implementations or exemplary summaries of the technology described in the disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the overall structure schematic view of the foundation pit prestressed pipe pile support device of the utility model;
[0018] Figure 2 The structure explosion map of the supporting pipe, the top pressing end and the arc-shaped plate in the foundation pit prestressed pipe pile supporting device of the utility model;
[0019] Figure 3 The structure schematic view of the supporting pipe and the positioning adjusting assembly in the foundation pit prestressed pipe pile supporting device of the utility model;
[0020] Figure 4 The local structure schematic view of the clamping assembly in the foundation pit prestressed pipe pile supporting device of the utility model;
[0021] Figure 5 The local structure sectional view of the positioning adjusting assembly in the foundation pit prestressed pipe pile supporting device of the utility model;
[0022] Figure 6 The local structure schematic view of the supporting seat and the penetrating rod in the foundation pit prestressed pipe pile supporting device of the utility model.
[0023] Main reference signs:
[0024] 1, supporting pipe; 11, supporting seat; 12, penetrating rod; 121, supporting spring; 2, arc-shaped plate; 21, sharp part; 3, top pressing end; 4, clamping assembly; 41, sleeve pipe; 42, damping pad; 43, table type spring; 44, rubber block; 45, elastic plate; 5, positioning adjusting assembly; 51, adjusting bolt; 511, threaded pipe; 512, threaded rod; 52, positioning piece; 521, movable pipe; 522, tubular spring; 523, top rod; 524, positioning rod. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the embodiments of the present disclosure are described in more detail below with reference to the drawings. Note that the described embodiments are part of the embodiments of the present disclosure, not all. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present disclosure.
[0026] As shown in the accompanying Figure 1 and the accompanying Figure 2As shown, the prestressed pipe pile support device for foundation pits provided in this embodiment of the present invention is used for rapid assembly in foundation pits, facilitating vertical support of the foundation pits. The prestressed pipe pile support device includes a support pipe 1 and support seats 11 evenly arranged on the outside of the support pipe 1. The support seats 11 are the installation ends of the support device and the foundation pit. In the existing support devices, drilling rigs are often used to drill through the support seat 11 and screw it into the foundation pit to achieve the positional installation of the device and the foundation pit. In this invention, the through rod 12 can be rotatably set at the lower end of the support seat 11, and a support spring 121 is set between the through rod 12 and the support seat 11 for connection. This allows the spring to limit the rotation angle of the through rod 12 when it rotates, facilitating the use of the through rod 12 at an angle relative to the ground. Next, multiple arc-shaped plates 2 are installed at the lower end of the support pipe 1 as the through-end of the support pipe 1 into the foundation pit; a top-pressing end 3 is installed at the upper end of the support pipe 1 as the pressing end for the support device to penetrate the foundation pit, allowing the support device to be installed using a static pressure device for pipe piles. Through the contact between the pressing end of the static pressure device and the top-pressing end 3, multiple arc-shaped plates 2 can be pressed into the foundation pit. The through-rod 12 at the lower end of the support seat 11 moves downwards as the arc-shaped plates 2 are pressed in, penetrating the foundation pit. The elastic limit of the rotating through-rod 12 and the support seat 11 by the support spring 121 allows the through-rod 12 to be inserted into the foundation pit at an angle, increasing the connection area between the support device and the foundation pit and improving support stability. Furthermore, as... Figure 6 As shown, inclined limiting plates are provided on one side of the bearing seats at both ends of the through rod 12 and the support seat 11. The operating angle of the through rod 12 is adjusted by bolts connected by threads in the middle of the bearing seats, limiting the inclination angle of the through rod 12. This facilitates the inclined placement of the through rod 12 on the support seat 11, expands the support area between the support seat 11 and the foundation pit, and improves the horizontal setting effect of the support pipe 1. The ring distribution and use of multiple arc plates 2 facilitates the penetration of the support pipe 1 into the area below it, increases the connection firmness between the support pipe 1 and the foundation pit, ensures the alignment of the axis of the support device with the axis of the pipe pile, and facilitates the vertical penetration of the pipe pile into the foundation pit. At the same time, during the process of the support device assisting the pipe pile in driving into the foundation pit, the positioning adjustment components 5 set on the upper and lower sides of the support pipe 1 are used. This allows external personnel to use the positioning parts 52 on the through positioning adjustment components 5 and the adjusting bolts 51 to correct the pipe pile and adjust the pressing state of the static pressure equipment, facilitating the vertical pressing of the pipe pile.
[0027] To better facilitate the penetration of the curved slab 2 through the foundation pit, such as Figure 2 As shown, a sharp part 21 can be provided on the inner side of the lower end of the arc plate 2. Multiple arc plates 2 are distributed in a ring on the support seat 11. The gap between the multiple support seats 11 facilitates the insertion of soil when penetrating the foundation pit. The length of the arc plate 2 can be appropriately selected according to the length of the supporting pipe pile to ensure the support strength of the arc plate 2 for the pipe pile.
[0028] When driving the pipe pile through the support pipe 1, in order to better enhance the support effect of the support device on the pipe pile, such as... Figure 2 As shown, multiple clamping components 4 can be arranged in a ring on the inner side of the upper end of the support pipe 1. An elastic plate 45 is provided at the end of the clamping component 4 away from the support pipe 1. The lower end of the elastic plate 45 is inclined inward. When the pipe pile is inserted into the support pipe 1, the multiple ring-shaped elastic plates 45 first fit together with the inwardly inclined elastic plate 45. Then, as the pipe pile is pressed down, the lower end of the elastic plate 45 is opened, which drives the upper elastic plate 45 to support the outer surface of the pipe pile. As a result, the elastic plate 45 deforms, and the inner sides of both ends of the elastic plate 45 press against the outer surface of the pipe pile, making it more compatible with the support of the pipe pile.
[0029] Furthermore, such as Figure 4 As shown, the clamping assembly 4 includes a sleeve 41 fixed on the support pipe 1. A damping pad 42 is provided on the inner side of the sleeve 41, and a frustum spring 43 is provided on the damping pad 42. The wide end of the frustum spring 43 is provided outward, and a rubber block 44 connected to the elastic plate 45 is fixed thereon. When the elastic plate 45 is pressed against the frustum spring 43, the frustum spring 43, together with the damping pad 42 and the rubber block 44, can weaken the force and transmit it evenly to the elastic plate, so as to make the force-bearing area on the surface of the elastic plate more even and facilitate the clamping of the pipe pile by the elastic plate 45.
[0030] In some embodiments, the positioning adjustment component 5 can use the threaded rotation of the adjusting bolt 51 on the support pipe 1 to adjust the screw length of the adjusting bolt 51 into the support pipe 1. By pushing against the surface of the pipe pile, it serves as a correction structure for the pipe pile. At the same time, the extension length of the positioning rod 524 on the positioning member 52 can be used to easily obtain reference data for the verticality of the pipe pile. When the position of the pipe pile deviates, the length of the moving positioning rod 524 is the adjustment length of the pipe pile, which facilitates the correction of the pipe pile.
[0031] It is worth noting that, for example Figure 5 As shown, the adjusting bolt 51 can adjust the length of the threaded rod 512 entering the support pipe 1 by rotating the threaded pipe 511 that is installed through the threaded pipe 511 and the threaded rod 512 that is threaded in the threaded pipe 511. The outer end of the threaded rod 512 located in the support pipe 1 is the power drive end, which can be driven by human power or electric motor to realize the position adjustment of the threaded rod 512 in the threaded pipe 511.
[0032] To facilitate the status detection and correction of the offset pipe piles by the positioning component 52, such as Figure 5As shown, the positionable member 52 can be provided with a movable tube 521 on the support pipe 1, a tubular spring 522 is fixed in the middle of the inside of the movable tube 521, by sleeving a jacking rod 523 in the tubular spring 522, and setting a positioning rod 524 at the end of the jacking rod 523, the jacking rod 523 and the positioning rod 524 are convenient to display the offset structure of the pipe pile. Wherein, when the pipe pile is pressed into the support pipe 1, the jacking rod 523 can drive the positioning rod 524 to extend out of the movable tube 521, and the extension length is the difference between the radius of the pipe pile and the distance from the jacking rod 523 to the center of the support pipe 1. According to the cooperation of the plurality of upper and lower two side positioning adjusting assemblies 5, it is convenient for external workers to judge the pressing state of the pipe pile, convenient for the correction treatment of the pipe pile, and improve the supporting effect of the supporting device on the pipe pile.
[0033] Of course, the above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.
Claims
1. A foundation pit prestressed pipe pile supporting device, comprising a supporting pipe (1), a supporting seat (11) arranged outside the supporting pipe (1), and a plurality of penetrating rods (12), characterized in that: The lower end of the supporting seat (11) is provided with a supporting spring (121), the through rod (12) is rotatably arranged on the supporting seat (11) and is connected with the supporting spring (121), the lower end of the supporting pipe (1) is provided with a plurality of arc-shaped plates (2), the upper end of the supporting pipe (1) is provided with a top pressing end (3), and the outer sides of the upper and lower sides of the supporting pipe (1) are provided with positioning and adjusting assemblies (5) for vertical correction of the pipe pile and the through foundation pit.
2. The foundation pit prestressed pipe pile supporting device according to claim 1, wherein, The inner side of the lower end of the arc-shaped plate (2) is provided with a sharp part (21), and a plurality of arc-shaped plates (2) are annularly distributed on the supporting seat (11).
3. The foundation pit prestressed pipe pile supporting device according to claim 1, wherein, The inner side of the upper end of the supporting pipe (1) is provided with a plurality of clamping assemblies (4), one end of the clamping assembly (4) away from the supporting pipe (1) is provided with an elastic plate (45), and the lower end of the elastic plate (45) is inclined inward, and a plurality of elastic plates (45) are annularly distributed in the supporting pipe (1).
4. The foundation pit prestressed pipe pile supporting device according to claim 3, characterized in that, The clamping assembly (4) comprises a sleeve pipe (41) fixed on the supporting pipe (1), the inner side of the sleeve pipe (41) is provided with a damping pad (42), the damping pad (42) is provided with a table-shaped spring (43), and the wide end of the table-shaped spring (43) is provided with a rubber block (44) connected with the elastic plate (45).
5. The foundation pit prestressed pipe pile supporting device according to claim 1, wherein, The positioning and adjusting assembly (5) comprises an adjusting bolt (51) threaded through the supporting pipe (1) and a positioning piece (52) arranged through the supporting pipe (1).
6. The foundation pit prestressed pipe pile supporting device according to claim 5, characterized in that, The adjusting bolt (51) comprises a threaded pipe (511) arranged through the supporting pipe (1), a threaded rod (512) is threadedly connected in the threaded pipe (511), and one end of the threaded rod (512) located outside the supporting pipe (1) is a power driving end.
7. The foundation pit prestressed pipe pile supporting device according to claim 5, characterized in that, The positioning piece (52) comprises a movable pipe (521) fixed on the supporting pipe (1), a tubular spring (522) is fixed in the middle of the inner side of the movable pipe (521), a top rod (523) is sleeved on the middle part of the tubular spring (522), a positioning rod (524) is fixed on the end of the top rod (523), and the top rod (523) and the positioning rod (524) are slidably connected with the movable pipe (521).