Detection device for uplift bearing capacity of single pile

Abstract

The utility model relates to the technical field of single pile testing, in particular to a device for detecting the uplift bearing capacity of a single pile, which comprises a supporting mechanism, the supporting mechanism comprises two supporting plates, each supporting plate is of a semicircular structure, and the two symmetrical supporting plates form a circular truncated cone structure. A pulling mechanism is installed on the two symmetrically-buckled supporting plates, the pulling mechanism comprises a top cover, the top cover is installed on the tops of the two symmetrically-buckled supporting plates, a jack is installed at the center of the top cover, an output shaft at the bottom of the jack extends to the outer side of the bottom of the top cover, and the output shaft at the bottom of the jack is connected with a flange block; the jack is supported and installed through cooperation of the two supporting plates, and through disassembly and assembly of the two supporting plates, the jack is convenient to move and operate, and the occupied area is small.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically a testing device for the pull-out bearing capacity of a single pile, belonging to the field of single pile testing technology. Background Technology

[0002] The static load test for pull-out typically uses a support, a reaction beam, and a jack (hydraulic system) as the reaction system. The jack provides the pull-out force, the displacement monitoring device measures the pull-out amount of the tested component, and the hydraulic system measures the bearing capacity.

[0003] The existing patent number is 202223291242.X, which is a single pile pull-out bearing capacity testing device. It can effectively test the pull-out of a single pile. However, the device requires multiple devices to work with a jack during operation, which is time-consuming and labor-intensive. It is also bulky and large in size, occupies a lot of space after installation, and is very inconvenient to move later. Utility Model Content

[0004] The purpose of this utility model is to provide a device for testing the pull-out bearing capacity of a single pile in order to solve the above problems. The device supports the installation of the jack by means of two support plates, and the two support plates can be disassembled and assembled to facilitate relocation. It is easy to operate and occupies a small area.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a device for testing the pull-out bearing capacity of a single pile, comprising a support mechanism, wherein the support mechanism comprises two support plates, the support plates being semi-circular structures, the two symmetrical support plates forming a frustum-shaped structure, a pulling mechanism being installed on the two symmetrically interlocked support plates, the pulling mechanism comprising a top cover, the top of the two symmetrically interlocked support plates being fitted with a top cover, a jack being installed at the center of the top cover, the bottom output shaft of the jack extending to the outer side of the bottom of the top cover, and a flange block being connected to the bottom output shaft of the jack.

[0006] Preferably, the flange block has a tapered structure, and the bottom output shaft of the jack is threadedly connected to the top of the flange block.

[0007] Preferably, the two support plates are provided with positioning grooves on their top inner sides, and the bottom edge of the top cover engages with the inside of the positioning grooves.

[0008] Preferably, the flange block is provided with a plurality of annular and equidistant connecting grooves, and one end of the connecting groove has a certain slope.

[0009] Preferably, each of the multiple connecting grooves is provided with a symmetrical toothed plate, one side of which extends into the flange block and the other side of which is slidably connected to the inside of the flange block by multiple abutment springs.

[0010] Preferably, two pull rings are installed at the top edge of the top cover, and the bottom of the pull rings is threaded to the top cover.

[0011] Preferably, rubber pads are installed at the bottom of the two support plates, and the rubber pads have an arc-shaped structure.

[0012] Preferably, the bottom of the two support plates is vertically connected to a plurality of insert rods, the insert rods being tapered in shape and extending to the outer side of the bottom of the rubber pad.

[0013] Preferably, each of the two support plates has an observation window on its sidewall, and the observation window is circular.

[0014] Preferably, a fixing block is fixedly connected to the opposite edge of each of the two support plates, and the two fixing blocks are connected by a screw and a nut.

[0015] The beneficial effects of this utility model are: the installation of two symmetrically interlocking support plates facilitates the support and placement of the top cover; the installation of the jack on the top cover facilitates the connection of the flange block; the connection between the flange block and the monopile allows the flange block to be pulled under the operation of the jack, which facilitates the monopile pull-out test; and the operation is convenient and easy to disassemble and move. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the insertion rod and the support plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the top cover and the support plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the fixing block and the support plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the flange block and the jack of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection structure between the contact spring and the toothed plate of this utility model.

[0022] In the diagram: 1. Support mechanism; 101. Support plate; 102. Fixing block; 103. Screw; 104. Nut; 105. Observation window; 106. Rubber pad; 107. Insert rod; 108. Positioning groove; 2. Pulling mechanism; 201. Top cover; 202. Jack; 203. Pull ring; 204. Flange block; 205. Connecting groove; 206. Toothed plate; 207. Contact spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 As shown, a device for testing the pull-out bearing capacity of a single pile includes a support mechanism 1. The support mechanism 1 includes two support plates 101, each with a semi-circular structure. The two symmetrical support plates 101 form a frustum-shaped structure. A pulling mechanism 2 is installed on the two symmetrically interlocked support plates 101. The pulling mechanism 2 includes a top cover 201. The top cover 201 is installed on the top of the two symmetrically interlocked support plates 101. A jack 202 is installed at the center of the top cover 201. The bottom output shaft of the jack 202 extends to the outer side of the bottom of the top cover 201. A flange block 204 is connected to the bottom output shaft of the jack 202.

[0025] As a technical optimization of this utility model, the flange block 204 has a tapered structure, and the bottom output shaft of the jack 202 is threadedly connected to the top of the flange block 204, which is conducive to the connection of single piles of different thicknesses and facilitates the disassembly and maintenance of the flange block 204.

[0026] As a technical optimization of this utility model, the top inner sides of the two support plates 101 are respectively provided with positioning grooves 108, and the bottom edge of the top cover 201 is engaged with the inside of the positioning grooves 108. The opening of the positioning grooves 108 facilitates the stable engagement between the top cover 201 and the top inner side of the support plate 101, and prevents it from moving or slipping.

[0027] As a technical optimization of this utility model, the flange block 204 is provided with a plurality of annular and equidistantly distributed connecting grooves 205. One end of the connecting groove 205 has a certain slope. By opening the plurality of connecting grooves 205, it is convenient to connect the top of the steel bars on the single pile, so that the flange block 204 can pull multiple steel bars.

[0028] As a technical optimization of this utility model, symmetrical toothed plates 206 are provided inside the multiple connecting grooves 205 respectively. One side of the toothed plate 206 extends into the flange block 204. One side of the toothed plate 206 is slidably connected to the flange block 204 through multiple anti-springs 207. With the installation of multiple symmetrical toothed plates 206 and the cooperation of anti-springs 207, the toothed plates 206 can slide extensibly, which is conducive to clamping and positioning the steel bars and preventing the steel bars from moving and slipping.

[0029] As a technical optimization of this utility model, two pull rings 203 are installed at the top edge of the top cover 201. The bottom of the pull rings 203 is threadedly connected to the top cover 201. The installation of the two pull rings 203 facilitates the lifting of the support plate 101 when it is moved, making the operation more convenient.

[0030] As a technical optimization of this utility model, rubber pads 106 are respectively installed at the bottom of the two support plates 101. The rubber pads 106 have an arc-shaped structure. The installation of the rubber pads 106 helps to protect the bottom of the support plates 101 and increases friction.

[0031] As a technical optimization of this utility model, multiple insert rods 107 are vertically connected to the bottom of the two support plates 101. The insert rods 107 have a tapered structure and extend to the outer side of the bottom of the rubber pad 106. The installation of multiple insert rods 107 helps to limit the bottom of the support plate 101 to the ground and plays a role in preventing slippage.

[0032] As a technical optimization of this utility model, observation windows 105 are provided on the side walls of the two support plates 101 respectively. The observation windows 105 are circular. The opening of the observation windows 105 facilitates the observation of the inner condition of the support plates 101. In addition, the circular design plays a role in resisting pressure and preventing the support plates 101 from deforming.

[0033] As a technical optimization of this utility model, fixing blocks 102 are fixedly connected to the opposite edges of the two support plates 101 respectively. The two fixing blocks 102 are connected by screws 103 and nuts 104. With the installation of fixing blocks 102, the two support plates 101 can be detached and assembled with the cooperation of screws 103 and nuts 104.

[0034] In use, this utility model first connects the reinforcing bars on the single pile to the flange block 204 through the cooperation of multiple connecting grooves 205, and fixes them with buckles. With the cooperation of the toothed plate 206 and the contact spring 207, the reinforcing bars are stably engaged with the inside of the connecting grooves 205 and will not slip. Then, the jack 202 on the top cover 201 is threadedly connected to the top of the flange block 204. Next, the two support plates 101 are lifted by the pull ring 203 and moved to the bottom of the top cover 201, so that the two support plates 101 are symmetrically fastened together, and then secured by screws. The rod 103 and nut 104 are used for fixing. After the top cover 201 is engaged with the positioning groove 108 on the top of the support plate 101, the support plate 101 can stably support the top cover 201. The bottom of the support plate 101 is equipped with a plug rod 107. The plug rod 107 is inserted into the ground and anti-slip effect is achieved with the cooperation of the rubber pad 106. Finally, by controlling the operation of the jack 202, the jack 202 pulls the flange block 204 up. Under the counter-support of the support plate 101, the single pile is pulled, which facilitates the single pile pull-out test.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the pull-out bearing capacity of a single pile, comprising a support mechanism (1), characterized in that: The support mechanism (1) includes two support plates (101), each of which is a semi-circular structure. The two symmetrical support plates (101) form a frustum-shaped structure. A pulling mechanism (2) is installed on the two symmetrically interlocked support plates (101). The pulling mechanism (2) includes a top cover (201). The top cover (201) is installed on the top of the two symmetrically interlocked support plates (101). A jack (202) is installed at the center of the top cover (201). The bottom output shaft of the jack (202) extends to the outside of the bottom of the top cover (201). The bottom output shaft of the jack (202) is connected to a flange block (204).

2. The device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: The flange block (204) has a tapered structure, and the bottom output shaft of the jack (202) is threadedly connected to the top of the flange block (204).

3. The device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: The two support plates (101) are respectively provided with positioning grooves (108) on the inner side of the top, and the bottom edge of the top cover (201) is engaged with the inside of the positioning grooves (108).

4. The device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: The flange block (204) is provided with a plurality of annular and equidistant connecting grooves (205), and one end of the connecting groove (205) has a certain slope.

5. A device for testing the pull-out bearing capacity of a single pile according to claim 4, characterized in that: Each of the multiple connecting grooves (205) is provided with a symmetrical toothed plate (206). One side of the toothed plate (206) extends into the flange block (204), and one side of the toothed plate (206) is slidably connected to the flange block (204) through multiple abutment springs (207).

6. The device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: Two pull rings (203) are installed at the top edge of the top cover (201), and the bottom of the pull rings (203) are threaded to the top cover (201).

7. The device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: Rubber pads (106) are respectively installed at the bottom of the two support plates (101), and the rubber pads (106) have an arc-shaped structure.

8. A device for testing the pull-out bearing capacity of a single pile according to claim 7, characterized in that: The bottom of the two support plates (101) is vertically connected to a plurality of insert rods (107), the insert rods (107) are tapered and extend to the outer side of the bottom of the rubber pad (106).

9. A device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: The two support plates (101) are provided with observation windows (105) on their side walls, and the observation windows (105) are circular.

10. A device for testing the pull-out bearing capacity of a single pile according to claim 1, characterized in that: Two support plates (101) are fixedly connected to opposite edges by fixing blocks (102), and the two fixing blocks (102) are connected by screws (103) and nuts (104).

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