Uplift test device for uplift pile

Abstract

The invention provides an uplift test device for uplift piles. The uplift test device comprises a cross beam, supporting assemblies arranged at the two ends of the cross beam and a detection assembly arranged in the middle of the cross beam. The supporting assembly comprises a base and a hydraulic telescopic rod which is universally connected with the base, and the top of the hydraulic telescopic rod is connected with the cross beam; the detection assembly comprises an adjustable mounting frame connected with the cross beam, a plurality of test joints arranged on the mounting frame, a driving piece for driving the test joints, a test connecting piece used for being embedded into the uplift pile and connected with the test joints, and a plurality of distance measuring sensors arranged on the cross beam; the tension sensor is arranged on the mounting frame; and the hydraulic cylinder is arranged on the cross beam and is used for driving the mounting frame to lift. The structure is simple, operation is convenient, manpower is saved, when the testing environment is uneven, the two ends can be adjusted through the hydraulic telescopic rods, it is ensured that the cross beam is in the horizontal testing state, and the accuracy of the testing result is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of engineering detection, and in particular to a pull-out test device for a pull-out pile. Background Art

[0002] Pull-out piles are widely used in building foundations, because the deeper the building foundation is buried, the greater the impact of groundwater on the building, and the more prominent the anti-floating problem is. Therefore, it is necessary to test the pull-out resistance of the pull-out piles. In the prior art, when testing the pull-out bearing capacity, a hydraulic press is tied to the upper end of the pile, and then people start the hydraulic rod next to it, input a set value of tension into the hydraulic rod, and observe whether the pile can be pulled up under the test set value. This method of testing is time-consuming and requires manual observation and operation. In addition, during the test, the ground is not necessarily level, and the existing testing equipment is difficult to ensure that the direction of the applied force is vertical, which affects the test results. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a pull-out pile pull-out test device.

[0004] In order to solve the above technical problems, the present invention provides a pull-out pile pull-out test device, comprising a crossbeam, support assemblies arranged at both ends of the crossbeam, and a detection assembly arranged in the middle of the crossbeam; the support assembly comprises a base and a hydraulic telescopic rod universally connected to the base, and the top of the hydraulic telescopic rod is connected to the crossbeam; the detection assembly comprises an adjustable mounting frame connected to the crossbeam, a plurality of test joints arranged on the mounting frame, a driving member for driving the test joints, a test connector for being embedded in the pull-out pile and connected to the test joints, a plurality of distance measuring sensors arranged on the crossbeam, a tension sensor arranged on the mounting frame, and a hydraulic cylinder arranged on the crossbeam for driving the mounting frame to rise and fall.

[0005] Furthermore, a ball head is provided at the bottom of the hydraulic telescopic rod, and a mounting groove matching with the ball head is provided on the base.

[0006] Furthermore, the test joint is a threaded rod or a screw, and the test connecting piece is an expansion body.

[0007] Furthermore, the test connector is a T-shaped nail, and the test connector includes an expansion body and a connector disposed in the expansion body, and a slot cooperating with the T-shaped nail is disposed on the top of the connector.

[0008] Furthermore, a plurality of tooth-shaped fixing members are circumferentially arranged at the bottom of the base, and a buffer member is also arranged at the bottom of the base.

[0009] Furthermore, the mounting frame includes two vertical poles slidably matched with the cross beam, and a mounting plate arranged at the bottom of the two vertical poles, and the output end of the hydraulic cylinder is connected to the mounting plate.

[0010] Furthermore, the driving member is a driving motor.

[0011] When the pull-out test device for pull-out piles of the present invention is in use, the pull-out test device for pull-out piles is fixed at a position to be tested by the support assembly, and then the detection assembly performs a pull-out test on the pull-out piles. Specifically, the test connector is implanted in the pull-out piles, and is respectively connected to the test connectors at corresponding positions by the test joints. The hydraulic cylinder drives the mounting frame to exert an upward pulling force, and the pulling force can be continuously increased by a control device, thereby performing a pull-out test on the pull-out piles. A plurality of distance measuring sensors respectively detect the distance of each point in real time, and at the same time, the tension sensor detects the pulling force in real time. When the distance measuring sensor detects that the distance changes, specifically, increases, the tension sensor can measure the real-time tension. The pull-out test device for pull-out piles has a simple structure, is easy to operate, and saves manpower. When the test environment is uneven, the two ends can be adjusted by the hydraulic telescopic rod to ensure that the crossbeam is in a horizontal test state, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the pull-out pile pull-out test device of the present invention;

[0014] The markings in the figure are:

[0015] Beam 1,

[0016] Support assembly 2, base 21, hydraulic telescopic rod 22, ball head 23, fixing part 24, buffer part 25,

[0017] Detection component 3, mounting frame 31, vertical pole 311, mounting plate 312, test joint 32, driving member 33, test connecting member 34, distance sensor 35, tension sensor 36, hydraulic cylinder 37. DETAILED DESCRIPTION

[0018] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present invention and are not limited to the scope of the present invention. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in routine experiments.

[0019] See also Figure 1 As shown, a pull-out test device for a pull-out pile comprises a crossbeam 1, support assemblies 2 arranged at both ends of the crossbeam 1, and a detection assembly 3 arranged in the middle of the crossbeam 1; the support assembly 2 comprises a base 21 and a hydraulic telescopic rod 22 universally connected to the base 21, and the top of the hydraulic telescopic rod 22 is connected to the crossbeam 1; the detection assembly 3 comprises an adjustable mounting frame 31 connected to the crossbeam 1, a plurality of test joints 32 arranged on the mounting frame 31, a driving member 33 for driving the test joints 32, a test connector 34 for being embedded in the pull-out pile and connected to the test joints 32, a plurality of distance measuring sensors 35 arranged on the crossbeam 1, a tension sensor 36 arranged on the mounting frame 31, and a hydraulic cylinder 37 arranged on the crossbeam 1 for driving the mounting frame 31 to rise and fall. When the pull-out pile anti-pulling test device is in use, the pull-out pile anti-pulling test device is fixed at a position to be tested by the support component 2, and then the detection component 3 performs the pull-out test of the pull-out pile. Specifically, the test connector 34 is implanted in the pull-out pile, and the test connectors 34 at corresponding positions are respectively connected through the test joints 32. The hydraulic cylinder 37 drives the mounting frame 31 to exert an upward pulling force, and the pulling force can be continuously increased by a control device, so as to perform a pull-out test on the pull-out pile. A plurality of distance measuring sensors 35 respectively detect the distance of each point in real time, and at the same time, the tension sensor 36 detects the pulling force in real time. When the distance measuring sensor 35 detects that the distance changes, specifically, increases, the tension sensor 36 can measure the real-time tension. The pull-out pile anti-pulling test device has a simple structure, is easy to operate, and saves manpower. When the test environment is uneven, the two ends can be adjusted by the hydraulic telescopic rod 22 to ensure that the beam 1 is in a horizontal test state and the accuracy of the test result is ensured.

[0020] The bottom of the hydraulic telescopic rod 22 is provided with a ball head 23, and the base 21 is provided with a mounting groove matched with the ball head. Such a structure facilitates the hydraulic telescopic rod 22 to adjust the test position of the beam 1.

[0021] The test joint 32 is a screw or a bolt, and the test connection piece 34 is an expansion body. Specifically, after the expansion body 34 is implanted into the pull-out pile, the pull-out test can be performed through the test joint 32 and the expansion body 34, and the test joint 32 and the test connection piece 34 are tightly connected during the process, and will not fall off to affect the test.

[0022] As another preferred embodiment of the present invention, the test connector 32 may be a T-shaped nail, and the test connector 34 may include an expansion body and a connector disposed in the expansion body, and a slot cooperating with the T-shaped nail is disposed on the top of the connector.

[0023] The bottom of the base 21 is provided with a plurality of tooth-shaped fixing members 24 along the circumferential direction, and the bottom of the base 21 is also provided with a buffer member 25. The fixing members 24 are convenient for fixing the base 21 at the test position, ensuring the stability of the position of the pull-out pile pull-out test device during the test and ensuring the accuracy of the test results.

[0024] The mounting frame 31 includes two vertical poles 311 slidably matched with the cross beam 1 , and a mounting plate 312 disposed at the bottom of the two vertical poles 311 , and the output end of the hydraulic cylinder 37 is connected to the mounting plate 312 .

[0025] The driving member 33 is a driving motor.

[0026] The above examples are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A pull-out pile pull-out test device, characterized in that: It includes a crossbeam, support components arranged at both ends of the crossbeam, and a detection component arranged in the middle of the crossbeam; the support component includes a base and a hydraulic telescopic rod universally connected to the base, and the top of the hydraulic telescopic rod is connected to the crossbeam; the detection component includes an adjustable mounting frame connected to the crossbeam, a plurality of test joints arranged on the mounting frame, a driving member driving the test joints, a test connector connected to the test joint for embedding in a pull-out pile, a plurality of distance measuring sensors arranged on the crossbeam, a tension sensor arranged on the mounting frame, and a hydraulic cylinder arranged on the crossbeam for driving the mounting frame to rise and fall.

2. The pull-out pile pull-out test device according to claim 1, characterized in that: A ball head is arranged at the bottom of the hydraulic telescopic rod, and a mounting groove matched with the ball head is arranged on the base.

3. The pull-out pile pull-out test device according to claim 1, characterized in that: The test joint is a threaded rod or a screw, and the test connecting piece is an expansion body.

4. The pull-out pile pull-out test device according to claim 1, characterized in that: The test connector is a T-shaped nail, and the test connector includes an expansion body and a connector disposed in the expansion body. A slot matching the T-shaped nail is disposed on the top of the connector.

5. The pull-out pile pull-out test device according to claim 1, characterized in that: The bottom of the base is provided with a plurality of tooth-shaped fixing members along the circumferential direction, and the bottom of the base is also provided with a buffer member.

6. The pull-out pile pull-out test device according to claim 1, characterized in that: The mounting frame comprises two vertical poles which are slidably matched with the cross beam, and a mounting plate which is arranged at the bottom of the two vertical poles, and the output end of the hydraulic cylinder is connected to the mounting plate.

7. The pull-out pile pull-out test device according to claim 1, characterized in that: The driving member is a driving motor.

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