Horizontal static load test device

Abstract

The utility model relates to the technical field of static load test devices, and discloses a horizontal static load test device which comprises a bottom plate and a detection device arranged on the bottom plate, the detection device comprises a horizontal jack and ejector rods arranged on two sides of the horizontal jack, one end of each ejector rod is connected with the horizontal jack and is a first-section ejector rod, and the other end of each ejector rod is a second-section ejector rod. The other end of the second-section replaceable ejector rod extends to the pile body and is a second-section replaceable ejector rod, a spherical hinge is arranged at the end of the second-section replaceable ejector rod, and the second-section replaceable ejector rod makes contact with the pile body through the spherical hinge. According to the device, the ejector rods are installed on the two sides of the horizontal jack to be matched with the spherical hinges for use, the stress direction of the device is always horizontal and passes through the axis of the pile body, in the experiment process of using the device, the situation that the cushion blocks are disintegrated after being stressed cannot occur, and the stability of the device in the experiment process is guaranteed. All the components of the device are convenient to assemble and assemble and disassemble, and a large amount of manpower and material resources can be saved.

Description

Technical Field

[0001] The utility model relates to the field of static load testing, in particular to a horizontal static load testing device. Background Art

[0002] In the pile foundation inspection test, the horizontal static load test is a conventional test method, and its purpose is to detect the horizontal bearing capacity of a single pile when the pile top is free. The test can adopt the unidirectional multi-cycle loading method and the slow sustained load method. Regardless of the loading method, the principle is to use a jack to push the inspected pile in the horizontal direction, and the adjacent piles provide reaction force. The displacement data is measured by the displacement sensor installed on the pile body, so as to analyze the horizontal bearing capacity of the inspected pile. However, during the inspection, conventional inspection devices all use the free assembly method, and generally there are no fixed accessories for assembly tests. During normal tests, it is easy for the assembled pads to be not on the same horizontal line. When the jack is exerted, the pads often collapse under force, resulting in test failure, thereby wasting manpower and material resources.

[0003] The patent application with publication number CN 214993706U discloses a horizontal static load test device, which relates to the field of composite foundation detection technology, including a pile body that provides a reaction force, a jack horizontally arranged between the pile body and the foundation pile, a ball joint seat between the pressure plate and the foundation pile, a dial indicator installed on a reference beam, and a fixing device is provided at one end of the ball joint seat close to the foundation pile, the fixing device is installed on the ball joint seat, and the fixing device fastens the ball joint seat to the foundation pile.

[0004] The output rod of the prior art is directly pushed toward the ball joint seat by the pressure of the jack, which easily causes the force direction to be not on the axis of the pile body, causing the device to collapse under force and leading to test failure.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a horizontal static load test device, which can ensure the stability of the device during the test by installing push rods on both sides of the horizontal jack and using them in conjunction with ball joints so that the force direction of the device is always horizontal and passes through the axis of the pile body. During the experiment using the device, the cushion block will not collapse after being stressed, thereby ensuring the stability of the device during the test.

[0007] The technical solution adopted by the utility model is:

[0008] A horizontal static load test device comprises a base plate and a detection device arranged on the base plate, wherein the detection device comprises a horizontal jack and push rods arranged on both sides of the horizontal jack, wherein one end of the push rod is connected to the horizontal jack and is a first-section push rod, and the other end extends toward the pile body and is a second-section replaceable push rod, wherein a ball joint is provided at the end of the second-section replaceable push rod, and the second-section replaceable push rod contacts the pile body via the ball joint.

[0009] By adopting the above structure, the device installs top rods on both sides of the horizontal jack for use in conjunction with ball joints, so that the direction of force applied to the device is always horizontal and passes through the axis of the pile body. During the experiment using the device, the pad will not collapse after being stressed, thereby ensuring the stability of the device during the test process.

[0010] Preferably, a group of feet are provided at the bottom of the horizontal jack, guide wheel assemblies are provided at the bottom of both sides of the feet, and the horizontal jack is arranged on the bottom plate through the guide wheel assemblies.

[0011] Preferably, slide grooves corresponding to the guide wheel assemblies are provided on the base plate on both sides of the horizontal jack.

[0012] By adopting the above structure, the device sets a guide wheel assembly at the bottom of the horizontal jack, which can make the jack move according to the force when in use. The device has high flexibility and avoids damage due to excessive force.

[0013] Preferably, the first section of the top rod and the second section of the replaceable top rod are both provided with fixed guide rings and are installed on the bottom plate through the fixed guide rings.

[0014] By adopting the above structure, the first section of the top rod and the second section of the replaceable top rod can slide freely in the fixed guide ring, and the device has better stability in use.

[0015] Preferably, the first section of the top rod is connected to the second section of the replaceable top rod by a threaded connection, and the second section of the replaceable top rod is connected to the ball joint by a threaded connection.

[0016] By adopting the above structure, it is convenient to select the second section replaceable top rod of different lengths according to the distance.

[0017] Preferably, an arc-shaped iron plate fitting the pile body is installed on the pile body, a ball joint support is welded and fixed on the arc-shaped iron plate, and a ball joint is placed in the ball joint support.

[0018] Preferably, a bubble level is arranged on the base plate outside the slide groove, and the bottom of the base plate is fixedly mounted by an adjustable support.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The utility model device installs push rods on both sides of the horizontal jack and cooperates with the ball joint to achieve that under the horizontal force, the force direction of the device is always horizontal and passes through the axis of the pile body. During the experiment using the device, the cushion block will not collapse after being stressed, thereby ensuring the stability of the device during the test process.

[0021] 2. The bottom of the horizontal jack of the utility model device is provided with a slide groove, and the pad of the device will not collapse after being stressed during the experiment, thereby ensuring the stability of the device during the test and ensuring the smooth operation of the test.

[0022] 3. The components of the device of the utility model are easy to assemble, and installation and removal are relatively convenient, which can save a lot of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a top view of the structure of the utility model;

[0025] Figure 3 This is a position structure diagram of the guide wheel assembly and the slideway of the utility model;

[0026] Figure 4 It is a connection schematic diagram of the ball joint, the second section replaceable top rod and the first section top rod of the utility model.

[0027] Among them: 1. ball joint; 2. replaceable top rod of the second section; 3. top rod of the first section; 4. horizontal jack; 5. slide; 6. fixed guide ring; 7. bottom plate; 8. bubble level; 9. pile body; 10. arc-shaped iron plate; 11. ball joint support; 12. guide wheel assembly; 13. adjustable support; 14. base. DETAILED DESCRIPTION

[0028] like Figure 1-4 As shown, a horizontal static load test device includes a bottom plate 7 and a detection device arranged on the bottom plate 7, the detection device includes a horizontal jack 4 and push rods arranged on both sides of the horizontal jack 4, one end of the push rod is connected to the horizontal jack 4, which is the first push rod 3, and the other end extends to the pile body 9, which is the second replaceable push rod 2, and the end of the second replaceable push rod 2 is provided with a ball joint 1, and the second replaceable push rod 2 is in contact with the pile body 9 through the ball joint 1. A bubble level 8 is arranged on the outside of the slide 5 on the bottom plate 7, and the bottom of the bottom plate 7 is fixed by an adjustable support 13. The device is installed on both sides of the horizontal jack 4 and used in conjunction with the ball joint 1, so that the direction of force on the device is always horizontal and passes through the axis of the pile body. During the experiment using the device, the cushion block will not collapse after being stressed, thereby ensuring the stability of the device during the test process.

[0029] A group of feet 14 are arranged at the bottom of the horizontal jack 4, and guide wheel assemblies 12 are arranged at the bottom of both sides of the feet 14. The horizontal jack 4 is arranged on the bottom plate 7 through the guide wheel assemblies 12. The bottom plate 7 is provided with chutes 5 corresponding to the guide wheel assemblies 12 on both sides of the horizontal jack 4. The device arranges the guide wheel assemblies 12 at the bottom of the horizontal jack 4, so that the jack can move its position according to the force when in use, and the device has high flexibility to avoid damage due to excessive force.

[0030] The first section of the top rod 3 and the second section of the replaceable top rod 2 are both sleeved with a fixed guide ring 6, and are installed on the bottom plate 7 through the fixed guide ring 6. The first section of the top rod 3 and the second section of the replaceable top rod 2 are connected by threads, and the second section of the replaceable top rod 2 and the ball joint 1 are connected by threads. It is convenient to select the second section of the replaceable top rod 2 of different lengths according to the distance.

[0031] An arc-shaped iron plate 10 fitting the pile body is installed on the pile body 9 , a ball joint support 11 is welded and fixed on the arc-shaped iron plate 10 , and a ball joint 1 is placed in the ball joint support 11 .

[0032] When the device is to be used, an iron bottom plate 7 is first processed, and adjustable supports 13 are installed at the four corners of the bottom of the bottom plate 7. A bubble level 8 is installed on the upper part of the bottom plate 7 to ensure that the bottom plate 7 can be adjusted to a horizontal state; a guide wheel assembly 12 is installed at the lower part of the foot 14 of the horizontal jack 4, and two slide grooves 5 are opened on the bottom plate 7. The guide wheel assembly 12 on the foot 14 of the horizontal jack 4 is placed in the opened slide grooves 5 to ensure that the horizontal jack 4 can slide freely in the slide grooves 5; two fixed The guide ring 6 enables the top rods 2 on both sides to slide freely, so that the first section top rod 3 and the second section replaceable top rod 2 can complete the force transmission function together. The second section replaceable top rod 2 can replace top rods of different lengths according to the distance; arc-shaped iron plates 10 that fit the pile bodies are installed on the pile bodies 9 on both sides with expansion screws, and the ball joint support 11 is welded and fixed on the arc-shaped iron plate 10. One end of the top rod is in contact with the horizontal jack 4, and the other end is in contact with the pile body 9 through the ball joint 1, ensuring that the direction of the force passes horizontally through the axis of the pile body 9 and does not change with the inclination or twisting of the pile. The device installs top rods on both sides of the horizontal jack 4 and cooperates with the ball joint 1 to ensure that the direction of force on the device is always horizontal and passes through the axis of the pile body. During the experiment using the device, the cushion block will not collapse after being stressed, ensuring the stability of the device during the test process.

[0033] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should be included in the protection scope determined by the claims of the present invention.

Claims

1. A horizontal static load test device, comprising a bottom plate and a detection device arranged on the bottom plate, characterized in that: The detection device includes a horizontal jack and push rods arranged on both sides of the horizontal jack. One end of the push rod is connected to the horizontal jack, which is the first section of the push rod, and the other end extends toward the pile body, which is the second section of the replaceable push rod. The end of the second section of the replaceable push rod is provided with a ball joint, and the second section of the replaceable push rod is in contact with the pile body through the ball joint.

2. A horizontal static load test device according to claim 1, characterized in that: A group of feet are arranged at the bottom of the horizontal jack, guide wheel assemblies are arranged at the bottoms of both sides of the feet, and the horizontal jack is arranged on the bottom plate through the guide wheel assemblies.

3. A horizontal static load test device according to claim 2, characterized in that: The bottom plate is provided with sliding grooves corresponding to the guide wheel components on both sides of the horizontal jack.

4. A horizontal static load test device according to claim 1, characterized in that: The first section of the top rod and the second section of the replaceable top rod are both sleeved with fixed guide rings and are installed on the bottom plate through the fixed guide rings.

5. A horizontal static load test device according to claim 4, characterized in that: The first section of the top rod is connected to the second section of the replaceable top rod by a threaded connection, and the second section of the replaceable top rod is connected to the ball joint by a threaded connection.

6. A horizontal static load test device according to claim 1, characterized in that: The pile body is provided with an arc-shaped iron plate which fits the pile body, a ball joint support is welded and fixed on the arc-shaped iron plate, and a ball joint is placed in the ball joint support.

7. A horizontal static load test device according to claim 1, characterized in that: A bubble level is arranged on the outside of the slide groove on the bottom plate, and the bottom of the bottom plate is fixedly mounted by an adjustable support.

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