Pile foundation single pile vertical uplift static load detection device

Abstract

The utility model discloses a pile foundation single pile vertical anti-pulling static load detection device which comprises a supporting plate, the bottom of the supporting plate is fixedly connected with a base, the top of the supporting plate is fixedly connected with a hydraulic jack, the top of the hydraulic jack is fixedly connected with a push plate, the top of the supporting plate is fixedly connected with a limiting sleeve, and the limiting sleeve is fixedly connected with the base. And a transmission rod is connected to the inner side of the limiting sleeve in a penetrating mode, a connecting plate is fixedly connected to the bottom of the transmission rod, a mounting plate is slidably connected to the bottom of the connecting plate, and a connecting assembly is arranged at the bottom of the mounting plate. The limiting bolt is in threaded connection with the top end of the transmission rod, a worker can conveniently assemble and disassemble the transmission rod and the push plate, the connecting block is slidably connected to the inner side of the connecting plate, the bottom end of the fixing bolt abuts against the outer wall of the connecting block by rotating the fixing bolt, and the worker can conveniently assemble and disassemble the connecting assembly; and a worker can conveniently disassemble the device after using the device.

Description

Technical Field

[0001] The utility model relates to the technical field of pull-out static load detection devices, in particular to a vertical pull-out static load detection device for a single pile foundation. Background Art

[0002] The vertical pull-out bearing capacity test of a single pile refers to the process of testing the ability of a single pile to resist vertical pull-out by a certain method and conducting analysis and processing. The methods for obtaining the vertical pull-out bearing capacity of a single pile include the vertical pull-out static load test of a single pile, the standard empirical formula and the theoretical analysis. The pull-out static load test device is used in the vertical pull-out static load test of a single pile of a pile foundation, but the existing pull-out static load test device still has certain defects when used.

[0003] The defects of the pull-out static load detection device in the prior art are:

[0004] At present, patent document CN210263168U discloses a vertical pull-out static load test device for a concrete pipe pile, including a tension loading system and a loading bracket connected to the pipe pile; the loading bracket includes a left web, a right web and a top plate, the left web and the right web are arranged in parallel in the vertical direction and fixedly connected into one through the top plate, and the bottoms of the left web and the right web are respectively fixedly welded to the upper surface of the metal end plate at the top of the pipe pile; the tension loading system includes a steel beam and a jacking device, the steel beam passes between the left web and the right web, and the two ends are supported and fixed, and the jacking device is arranged between the steel beam and the top plate. The utility model provides a vertical pull-out static load test device for a concrete pipe pile, which solves the problems of long construction period and non-repeatable detection in the existing pipe pile pull-out detection, and has the advantages of convenient operation, high safety factor and no influence on the construction period, and can be widely promoted and applied in the construction process of building pipe piles.

[0005] The pull-out static load detection device in the above-mentioned document solves the problems of long construction period and non-repeatable detection in the existing pipe pile pull-out detection when in use. It has the advantages of easy operation, high safety factor and no impact on the construction period. It can be widely promoted and applied in the construction process of building pipe piles. However, when in use, it is cumbersome for the staff to install and disassemble the pull-out static load detection device, and it is cumbersome for the staff to disassemble it after use, which is inconvenient for the staff to use it later. Utility Model Content

[0006] The utility model aims to provide a pile foundation single pile vertical pull-out static load detection device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pile foundation single pile vertical pull-out static load detection device, comprising a support plate, the bottom of the support plate is fixedly connected to a base, the top of the support plate is fixedly connected to a hydraulic jack, the top of the hydraulic jack is fixedly connected to a push plate, the top of the support plate is fixedly connected to a limiting sleeve, the inner side of the limiting sleeve is penetrated and connected with a transmission rod, the bottom of the transmission rod is fixedly connected to a connecting plate, the bottom of the connecting plate is slidably connected to a mounting plate, and the bottom of the mounting plate is provided with a connecting assembly.

[0008] As a preferred technical solution of the utility model, the top end of the transmission rod is threadedly connected to a limiting bolt, and the limiting bolt is located above the push plate.

[0009] As a preferred technical solution of the utility model, a connecting block is fixedly connected to the top of the mounting plate, and the connecting block is slidably connected to the inner side of the connecting plate.

[0010] As a preferred technical solution of the utility model, a fixing bolt is installed through the top thread of the connecting plate, and the bottom end of the fixing bolt is against the outer wall of the connecting block.

[0011] As a preferred technical solution of the utility model, the connecting assembly includes a connecting frame, a telescopic plate and a limit plate, the top of the connecting frame is fixedly connected to the bottom of the mounting plate, the telescopic plate is slidably connected to both ends of the connecting frame, and the limit plate is fixedly connected to the top of the telescopic plate.

[0012] As a preferred technical solution of the utility model, a fastening bolt is installed through the top thread of the connecting frame, and the bottom end of the fastening bolt is against the outer wall of the telescopic plate.

[0013] As a preferred technical solution of the utility model, a connecting hole is opened on the outer wall of the limiting plate, and a positioning bolt is installed through the inner thread of the connecting hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is threadedly connected to the top of the transmission rod through a limit bolt, which is convenient for the staff to install and disassemble the transmission rod and the push plate. It is slidably connected to the inner side of the connecting plate through the connecting block, and then the bottom end of the fixing bolt is rotated to abut against the outer wall of the connecting block, which is convenient for the staff to install and disassemble the connecting assembly, and makes it convenient for the staff to disassemble it after use, which is convenient for the staff to use it later.

[0016] 2. The utility model can limit the concrete pipe piles by the limit plate, and the telescopic plate slides at both ends of the connecting frame. When the telescopic plate slides, the limit plate can be driven to move, so that the limit plate can limit the concrete pipe piles of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the support frame structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the connecting plate structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0021] Figure 5 It is a schematic cross-sectional structural diagram of the connection assembly of the utility model.

[0022] In the figure: 1. Support plate; 2. Base; 3. Hydraulic jack; 4. Push plate; 5. Limit sleeve; 6. Transmission rod; 7. Limit bolt; 8. Connecting plate; 9. Fixing bolt; 10. Mounting plate; 11. Connecting block; 12. Connecting frame; 13. Fastening bolt; 14. Telescopic plate; 15. Limiting plate; 16. Positioning bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] See also Figures 1 to 5 , a pile foundation single pile vertical pull-out static load detection device:

[0025] It includes a support plate 1, the bottom of the support plate 1 is fixedly connected to a base 2, the top of the support plate 1 is fixedly connected to a hydraulic jack 3, the top of the hydraulic jack 3 is fixedly connected to a push plate 4, the top of the support plate 1 is fixedly connected to a limiting sleeve 5, the inner side of the limiting sleeve 5 is penetrated and connected with a transmission rod 6, the bottom of the transmission rod 6 is fixedly connected to a connecting plate 8, the bottom of the connecting plate 8 is slidably connected to a mounting plate 10, and a connecting component is provided at the bottom of the mounting plate 10.

[0026] The support plate 1 can be supported by the base 2, and the support plate 1 can provide an installation position for the hydraulic jack 3. When the hydraulic jack 3 is in operation, the push plate 4 can be driven to move, and the transmission rod 6 can be lifted and lowered by the movement of the push plate 4. When the transmission rod 6 is lifted and lowered, the connecting assembly can be driven to lift and lower through the connecting plate 8 and the mounting plate 10, and the top of the pile foundation single pile can be connected through the connecting assembly, so that the vertical pull-out static load test of the pile foundation single pile can be carried out.

[0027] In a preferred embodiment, the top end of the transmission rod 6 is threadedly connected to a limit bolt 7 , and the limit bolt 7 is located above the push plate 4 .

[0028] The limiting bolt 7 is threadedly connected to the top of the transmission rod 6, thereby ensuring the stability of the connection between the transmission rod 6 and the push plate 4, and facilitating the installation and disassembly of the transmission rod 6 and the push plate 4 by the staff.

[0029] In a preferred embodiment, a connecting block 11 is fixedly connected to the top of the mounting plate 10, and the connecting block 11 is slidably connected to the inner side of the connecting plate 8. A fixing bolt 9 is installed through the top thread of the connecting plate 8, and the bottom end of the fixing bolt 9 rests against the outer wall of the connecting block 11.

[0030] The connecting block 11 is slidably connected to the inner side of the connecting plate 8, and the fixing bolt 9 is rotated so that the bottom end of the fixing bolt 9 abuts against the outer wall of the connecting block 11, thereby ensuring the stability of the connection between the mounting plate 10 and the connecting plate 8 and making it convenient for the staff to install and disassemble the connecting components.

[0031] In a preferred embodiment, the connecting assembly includes a connecting frame 12, a telescopic plate 14 and a limit plate 15, the top of the connecting frame 12 is fixedly connected to the bottom of the mounting plate 10, the telescopic plate 14 is slidably connected to both ends of the connecting frame 12, and the limit plate 15 is fixedly connected to the top of the telescopic plate 14.

[0032] The concrete pipe piles can be limited by the limiting plate 15, and the telescopic plate 14 can slide on both ends of the connecting frame 12. When the telescopic plate 14 slides, it can drive the limiting plate 15 to move, so that the limiting plate 15 can limit the concrete pipe piles of different specifications.

[0033] In a preferred embodiment, a fastening bolt 13 is installed through the top thread of the connecting frame 12 , and the bottom end of the fastening bolt 13 abuts against the outer wall of the telescopic plate 14 .

[0034] By rotating the fastening bolt 13 , the bottom end of the fastening bolt 13 is pressed against the outer wall of the telescopic plate 14 , thereby ensuring the stability of the connection between the telescopic plate 14 and the connecting frame 12 .

[0035] In a preferred embodiment, a connection hole is formed on the outer wall of the limiting plate 15 , and a positioning bolt 16 is installed through the inner thread of the connection hole.

[0036] The positioning bolt 16 passes through the connection hole so that the bottom end of the positioning bolt 16 passes through the inner side of the top end of the concrete pipe pile, thereby ensuring the stability of the connection between the limiting plate 15 and the concrete pipe pile.

[0037] Working principle,

[0038] When using the pull-out static load detection device to detect the vertical pull-out static load of the pile foundation single pile, the concrete pipe pile can be limited by the limit plate 15, and then the positioning bolt 16 is passed through the connecting hole so that the bottom end of the positioning bolt 16 is passed through the inner side of the top end of the concrete pipe pile, thereby ensuring the stability of the connection between the limit plate 15 and the concrete pipe pile. The hydraulic jack 3 is operated, and the push plate 4 can be driven to move during the operation of the hydraulic jack 3. The movement of the push plate 4 drives the transmission rod 6 to be lifted and lowered. When the transmission rod 6 is lifted and lowered, the connecting assembly can be driven to be lifted and lowered through the connecting plate 8 and the mounting plate 10, and the top of the pile foundation single pile is connected through the connecting assembly, so that the vertical pull-out static load detection of the pile foundation single pile can be carried out.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A pile foundation single pile vertical pull-out static load detection device, comprising a support plate (1), characterized in that: The bottom of the support plate (1) is fixedly connected to a base (2), the top of the support plate (1) is fixedly connected to a hydraulic jack (3), the top of the hydraulic jack (3) is fixedly connected to a push plate (4), the top of the support plate (1) is fixedly connected to a limit sleeve (5), the inner side of the limit sleeve (5) is penetrated and connected to a transmission rod (6), the bottom of the transmission rod (6) is fixedly connected to a connecting plate (8), the bottom of the connecting plate (8) is slidably connected to a mounting plate (10), and the bottom of the mounting plate (10) is provided with a connecting component.

2. A pile foundation single pile vertical pull-out static load detection device according to claim 1, characterized in that: The top end of the transmission rod (6) is threadedly connected to a limiting bolt (7), and the limiting bolt (7) is located above the push plate (4).

3. A pile foundation single pile vertical pull-out static load detection device according to claim 1, characterized in that: A connecting block (11) is fixedly connected to the top of the mounting plate (10), and the connecting block (11) is slidably connected to the inner side of the connecting plate (8).

4. A pile foundation single pile vertical pull-out static load detection device according to claim 1, characterized in that: A fixing bolt (9) is installed through the thread on the top of the connecting plate (8), and the bottom end of the fixing bolt (9) abuts against the outer wall of the connecting block (11).

5. A pile foundation single pile vertical pull-out static load detection device according to claim 1, characterized in that: The connection assembly comprises a connection frame (12), a telescopic plate (14) and a limit plate (15); the top of the connection frame (12) is fixedly connected to the bottom of the mounting plate (10); the telescopic plate (14) is slidably connected to both ends of the connection frame (12); and the limit plate (15) is fixedly connected to the top of the telescopic plate (14).

6. A pile foundation single pile vertical pull-out static load detection device according to claim 5, characterized in that: A fastening bolt (13) is installed through the top thread of the connecting frame (12), and the bottom end of the fastening bolt (13) is against the outer wall of the telescopic plate (14).

7. A pile foundation single pile vertical pullout static load detection device according to claim 5, characterized in that: The outer wall of the limiting plate (15) is provided with a connection hole, and a positioning bolt (16) is installed through the inner thread of the connection hole.

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