Hydraulic pressure plate structure for pile foundation static load detection

Abstract

The utility model discloses a kind of hydraulic pressure bearing plate structures of pile foundation static load detection, comprising: bearing plate main body, the upper end of the bearing plate main body is provided with multiple angle plates of uniform distribution, the upper end of the bearing plate main body is contacted with hydraulic jack, the outside of the bearing plate main body is provided with the measuring assembly for measuring the position of hydraulic jack;The outside of the bearing plate main body is provided with the mounting assembly for installing measuring assembly, the utility model is measured by being provided with the measuring assembly for measuring the position of hydraulic jack, measuring assembly adopts modularization design, can be quickly adjusted mounting position according to different specifications bearing plate, adapt multiple models of hydraulic jack, simultaneously avoid the difficulty of manual installation, realize accurate position measurement and ensure the accurate installation positioning of hydraulic jack, avoid the problem of uneven pressure distribution due to installation deviation, provide reliable basis for data acquisition.

Description

Technical Field

[0001] This utility model relates to the field of static load testing technology for pile foundations, specifically a hydraulic bearing plate structure for static load testing of pile foundations. Background Technology

[0002] Traditional methods for static load testing of pile foundations suffer from numerous inconveniences and shortcomings in measuring key parameters during the testing process, particularly the positional changes of hydraulic jacks under pressure. During testing, the hydraulic jack, as the core device providing static load pressure, transmits pressure to the pile foundation through its extension and retraction at the output end. Accurately acquiring the positional change data of the hydraulic jack is crucial for calculating the displacement of the pile foundation under static load. However, existing testing devices often lack dedicated and effective measurement components, making it difficult to intuitively and accurately display the positional changes of the hydraulic jack, resulting in significant measurement errors and failing to meet the requirements of high-precision testing. Furthermore, if the jack is not installed at the center of the bearing plate, it will exert significant pressure on one side of the bearing plate, easily affecting the accuracy of the test.

[0003] When using existing devices, the hydraulic jacks are installed manually without measuring the position, making it difficult to determine the center position of the installation on the bearing plate. This can easily lead to data errors during measurement. Therefore, we need to propose a hydraulic bearing plate structure for static load testing of pile foundations. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic bearing plate structure for static load testing of pile foundations, which is equipped with a measuring component for measuring the position of hydraulic jacks, fixing the position of hydraulic jacks and preventing them from moving, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hydraulic bearing plate structure for static load testing of pile foundations, comprising:

[0007] The pressure plate body has multiple evenly distributed corner plates at its upper end, a hydraulic jack is in contact with the upper end of the pressure plate body, and a measuring component for measuring the position of the hydraulic jack is provided on the outer side of the pressure plate body.

[0008] The outer side of the pressure plate body is provided with a mounting component for mounting the measuring component.

[0009] Preferably, the measuring component includes a mounting block, a scale plate, a clamping plate, and a push plate;

[0010] The outer side of the pressure plate body is in contact with a plurality of mounting blocks arranged in a ring. Each of the mounting blocks has a scale plate slidably connected inside. Each of the scale plates is slidably connected to the pressure plate body. Each of the scale plates has a clamping plate fixedly connected to its side wall. Each of the clamping plates is in contact with a hydraulic jack. Each of the scale plates has a push plate fixedly connected to its side wall.

[0011] Preferably, each of the mounting blocks is provided with a limit knob inside, and the multiple limit knobs are in contact with multiple scale plates respectively.

[0012] Preferably, the mounting assembly includes a fixed housing, a sliding plate, a plug rod, a movable frame, and a spring;

[0013] The pressure plate body has multiple symmetrically distributed fixed shells fixedly connected to its side wall. Each fixed shell has a sliding plate slidably connected inside. Each sliding plate is slidably connected to the pressure plate body. Each sliding plate has two evenly distributed insert rods fixedly connected to its side wall. Each insert rod is slidably connected to a mounting block. Each sliding plate has a movable frame fixedly connected to its side wall. Each movable frame is slidably connected to the multiple fixed shells. Each movable frame has a spring sleeved on its outer side.

[0014] Preferably, the output end of the hydraulic jack is in contact with a crossbeam.

[0015] Preferably, the lower end of the crossbeam contacts two symmetrically distributed first support beams, which are respectively disposed on both sides of the main body of the pressure plate.

[0016] Preferably, the upper end of the crossbeam is in contact with a plurality of uniformly distributed weight beams, and each of the plurality of weight beams is fixedly connected to a fixing rod.

[0017] Preferably, the lower ends of the plurality of weight beams are in common contact with two second support beams, and the two second support beams are respectively disposed on both sides of the main body of the pressure plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention features a measuring component for measuring the position of a hydraulic jack. The measuring component adopts a modular design, allowing for quick adjustment of the installation position according to different specifications of the pressure plate. It is compatible with various models of hydraulic jacks, avoiding the difficulties of manual installation, achieving accurate position measurement, and ensuring precise installation and positioning of the hydraulic jack. This avoids uneven pressure distribution caused by installation deviations and provides a reliable basis for data acquisition. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the measuring component of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation component of this utility model.

[0024] In the diagram: 1. Pressure plate body; 2. Angle plate; 3. Hydraulic jack; 4. Measuring component; 41. Mounting block; 42. Scale plate; 43. Clamping plate; 44. Push plate; 45. Limit knob; 5. Mounting component; 51. Fixed shell; 52. Slide plate; 53. Insert rod; 54. Moving frame; 55. Spring; 6. Crossbeam; 7. First support beam; 8. Weight beam; 9. Fixing rod; 10. Second support beam. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A hydraulic bearing plate structure for static load testing of pile foundations, comprising:

[0028] The pressure plate body 1 has multiple evenly distributed corner plates 2 at its upper end, and a hydraulic jack 3 is in contact with the upper end of the pressure plate body 1. A measuring component 4 for measuring the position of the hydraulic jack 3 is provided on the outer side of the pressure plate body 1.

[0029] An installation component 5 for mounting the measuring component 4 is provided on the outer side of the pressure plate body 1.

[0030] Through the cooperation of the main body 1 of the pressure plate and the corner plates 2, the main body 1 of the pressure plate serves as the core load-bearing component of the entire structure. Its design requires sufficient strength and rigidity to withstand the large load pressure applied by the hydraulic jack. Multiple evenly distributed corner plates 2 are carefully arranged at the upper end of the main body 1 of the pressure plate. These corner plates 2 not only enhance the structural strength of the upper end of the main body 1 of the pressure plate, but also disperse the pressure transmitted from the hydraulic jack to a certain extent, preventing local stress concentration that could damage the main body 1 of the pressure plate. Simultaneously, the upper end of the main body 1 of the pressure plate is in direct contact with the hydraulic jack 3, which is the key device for providing static load pressure. The extension and retraction of its output end transmits pressure to the bearing plate body 1, which in turn acts on the pile foundation. In addition, in order to accurately measure the position change of the hydraulic jack 3 during the bearing process and thus obtain the displacement data of the pile foundation under static load, a measuring component 4 is specially set on the outside of the bearing plate body 1 for measuring the position of the hydraulic jack 3. Moreover, considering that the measuring component 4 needs to be stably installed on the bearing plate body 1, an installation component 5 is also set on the outside of the bearing plate body 1 for installing the measuring component 4, so as to ensure the accuracy and stability of the measurement work and solve the technical problem that the hydraulic jack 3 is not easy to install.

[0031] The measuring component 4 includes a mounting block 41, a scale plate 42, a clamping plate 43, and a push plate 44;

[0032] The outer side of the pressure plate body 1 is in contact with a plurality of mounting blocks 41 arranged in a ring. Each mounting block 41 has a scale plate 42 slidably connected inside. Each scale plate 42 is slidably connected to the pressure plate body 1. Each scale plate 42 has a clamping plate 43 fixedly connected to its side wall. Each clamping plate 43 is in contact with a hydraulic jack 3. Each scale plate 42 has a push plate 44 fixedly connected to its side wall. Each mounting block 41 has a limit knob 45 inside. Each limit knob 45 is in contact with the scale plate 42.

[0033] Through the cooperation of the mounting blocks 41 and the scale plates 42, the mounting blocks 41 are evenly distributed on the outer side of the pressure plate body 1, providing a stable mounting base for the scale plates 42. The scale plates 42 are marked with precise graduations to visually display the position changes of the hydraulic jack 3. Multiple scale plates 42 are slidably connected to the pressure plate body 1 to ensure that the scale plates 42 can slide smoothly with the movement of the hydraulic jack 3. In order for the scale plates 42 to accurately reflect the position of the hydraulic jack 3, multiple abutment plates 43 are fixedly connected to the side walls of the multiple scale plates 42. The multiple abutment plates 43 are respectively connected to the hydraulic jack 3. When the hydraulic jack 3 is in contact with the pressure plate 43, it will push the clamping plate 43, which in turn will drive the scale plate 42 to move. In addition, in order to facilitate the operator to manually push the scale plate 42 for initial positioning or adjustment, and to ensure the stability of the scale plate 42 during the measurement process and to prevent it from sliding randomly and affecting the measurement accuracy, the limit knob 45 can be rotated to firmly press the scale plate 42 against it, thereby fixing the position of the scale plate 42. This achieves the technical effect of precise installation of the hydraulic jack 3 and solves the technical problem that inaccurate installation position of the hydraulic jack 3 will affect the test results.

[0034] Mounting assembly 5 includes a fixed housing 51, a sliding plate 52, a plug rod 53, a movable frame 54, and a spring 55;

[0035] The pressure plate body 1 has multiple symmetrically distributed fixed shells 51 fixedly connected to its side wall. Each fixed shell 51 has a sliding plate 52 slidably connected inside it. Each sliding plate 52 is slidably connected to the pressure plate body 1. Each sliding plate 52 has two evenly distributed insert rods 53 fixedly connected to its side wall. Each insert rod 53 is slidably connected to the mounting block 41. Each sliding plate 52 has a movable frame 54 fixedly connected to its side wall. Each movable frame 54 is slidably connected to the fixed shell 51. Each movable frame 54 has a spring 55 sleeved on its outer side.

[0036] Through the cooperation of structures such as the fixed shell 51 and the sliding plate 52, the fixed shell 51 provides installation space and support for components such as the sliding plate 52. The sliding plate 52 can slide smoothly within the fixed shell 51. Multiple sliding plates 52 are slidably connected to the pressure plate body 1, further enhancing the stability of the sliding plate 52's movement. To achieve a stable connection between the mounting block 41 and the pressure plate body 1, when the sliding plate 52 slides, it will drive the insertion rod 53 to insert or pull out of the mounting block 41, thereby realizing the installation and disassembly of the mounting block 41. To facilitate the operator's movement of the sliding plate 52, the operator can push or pull the moving frame 5. 4 drives the sliding plate 52 to move. In addition, in order to enable the sliding plate 52 to automatically reset when it is not subjected to external force and maintain the stable installation state of the mounting block 41, springs 55 are fitted on the outer side of multiple moving frames 54. One end of the spring 55 is connected to the fixed shell 51, and the other end is connected to the sliding plate 52 or the moving frame 54. When the sliding plate 52 is moved, the spring 55 will be compressed or stretched to generate elastic force. When the external force disappears, the elastic force of the spring 55 will cause the sliding plate 52 to automatically return to the initial position, which realizes the technical effect of facilitating the installation of the mounting block 41 and solves the technical problem that the mounting block 41 is inconvenient to install.

[0037] The output end of the hydraulic jack 3 is in contact with a crossbeam 6. The lower end of the crossbeam 6 is in contact with two symmetrically distributed first support beams 7. The two first support beams 7 are respectively set on both sides of the pressure plate body 1. The upper end of the crossbeam 6 is in contact with multiple evenly distributed weight beams 8. Each of the multiple weight beams 8 is fixedly connected to a fixing rod 9. The lower ends of the multiple weight beams 8 are in contact with two second support beams 10. The two second support beams 10 are respectively set on both sides of the pressure plate body 1.

[0038] Through the cooperation of structures such as the crossbeam 6 and the first support beam 7, the crossbeam 6, as a key component connecting the hydraulic jack 3 and the upper load, needs to have sufficient load-bearing capacity and rigidity to ensure that the pressure applied by the hydraulic jack 3 can be evenly transmitted to the structure below. Two first support beams 7 are respectively set on both sides of the bearing plate body 1. The first support beams 7 serve to support the crossbeam 6 and further distribute the pressure transmitted from the crossbeam 6 to the bearing plate body 1, ensuring uniform pressure distribution. The weight beam 8 is the main source of static load pressure; by increasing the number of weight beams 8, the pressure on the pile foundation can be increased. Based on the load conditions in the actual project, the fixed rod 9 facilitates the lifting of the weight beam 8 by the crane. The lower ends of multiple weight beams 8 are in contact with two second support beams 10. The two second support beams 10 are respectively set on both sides of the bearing plate body 1. The function of the second support beams 10 is similar to that of the first support beam 7, mainly to support the weight beams 8 and evenly transfer the pressure from the weight beams 8 to the crossbeams 6 and the structure below, ensuring the stability and reliability of the entire pile foundation static load testing system. This achieves the technical effect of facilitating the support of the crossbeams 6 and weight beams 8, and solves the technical problem that the crossbeams 6 and weight beams 8 are inconvenient to install.

[0039] Working principle: The bearing plate body 1 is placed horizontally on the top of the pile foundation to be tested, ensuring that it is in full contact with the pile top and avoiding tilting or suspension. The moving frame 54 is pushed to install the mounting block 41. The moving frame 54 is released, the spring 55 automatically rebounds, and the sliding plate 52 drives the insertion rod 53 to be inserted into the corresponding hole of the mounting block 41, so that the insertion rod 53 locks the mounting block 41 to ensure a stable connection.

[0040] Place the hydraulic jack 3 in the center of the pressure plate body 1, ensuring that its output end faces upward and is in close contact with the pressure plate body 1. Adjust the scale plate 42 so that the abutment plate 43 contacts the outer wall of the hydraulic jack 3. Rotate the limit knob 45 to fix the position of the scale plate 42 and prevent it from sliding during installation.

[0041] Two first support beams 7 and two second support beams 10 are placed on the outside of the main body 1 of the pressure plate. Then, a crossbeam 6 is placed above the output end of the hydraulic jack 3, ensuring that it is horizontal and in good contact with the jack. Weight beams 8 are stacked on top of the crossbeam 6 and hoisted and positioned by fixing rods 9. After installation, the descent height of the main body 1 of the pressure plate is measured at intervals. After the measurement is completed, the device is disassembled.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic bearing plate structure for static load testing of pile foundations, characterized in that, include: The pressure plate body (1) has multiple evenly distributed corner plates (2) at its upper end, and a hydraulic jack (3) is in contact with the upper end of the pressure plate body (1). A measuring component (4) for measuring the position of the hydraulic jack (3) is provided on the outer side of the pressure plate body (1). The outer side of the pressure plate body (1) is provided with an installation component (5) for installing the measuring component (4).

2. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 1, characterized in that, The measuring component (4) includes a mounting block (41), a scale plate (42), a clamping plate (43), and a push plate (44). Among them, the outer side of the pressure plate body (1) is in contact with a plurality of mounting blocks (41) distributed in a ring. The interior of each of the mounting blocks (41) is slidably connected with a scale plate (42). The scale plates (42) are slidably connected to the pressure plate body (1). The side walls of the scale plates (42) are fixedly connected with a retaining plate (43). The retaining plates (43) are in contact with a hydraulic jack (3). The side walls of the scale plates (42) are fixedly connected with a push plate (44).

3. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 2, characterized in that, Each of the mounting blocks (41) is provided with a limit knob (45), and the limit knob (45) contacts the scale plate (42) respectively.

4. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 1, characterized in that, The mounting assembly (5) includes a fixed housing (51), a sliding plate (52), a plug (53), a movable frame (54), and a spring (55); Among them, a plurality of fixed shells (51) are fixedly connected to the side wall of the pressure plate body (1) in a symmetrical manner. Slide plates (52) are slidably connected inside the plurality of fixed shells (51). The plurality of slide plates (52) are slidably connected to the pressure plate body (1) respectively. Two evenly distributed insert rods (53) are fixedly connected to the side wall of the plurality of slide plates (52). The plurality of insert rods (53) are slidably connected to the mounting block (41) respectively. Movable frames (54) are fixedly connected to the side wall of the plurality of slide plates (52). The plurality of movable frames (54) are slidably connected to the plurality of fixed shells (51) respectively. Springs (55) are sleeved on the outside of the plurality of movable frames (54).

5. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 1, characterized in that, The output end of the hydraulic jack (3) is in contact with a crossbeam (6).

6. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 5, characterized in that, The lower end of the crossbeam (6) is in contact with two symmetrically distributed first support beams (7), which are respectively located on both sides of the pressure plate body (1).

7. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 6, characterized in that, The upper end of the crossbeam (6) is in contact with a plurality of uniformly distributed weight beams (8), and each of the plurality of weight beams (8) is fixedly connected with a fixing rod (9).

8. The hydraulic bearing plate structure for static load testing of pile foundations according to claim 7, characterized in that, The lower ends of the multiple weight beams (8) are in common contact with two second support beams (10), and the two second support beams (10) are respectively disposed on both sides of the pressure plate body (1).

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