Static load test device for pile foundation
By designing a pile foundation static load test device including a steel plate, a hydraulic cylinder and a fixed block, the problem of difficulty in accurately evaluating the pile foundation bearing capacity in the existing technology is solved, and accurate measurement of the pile foundation bearing capacity and deformation characteristics is achieved. , ensuring the rationality of engineering design and the safety of buildings.
Patent Information
- Application Number
- CN202421147496.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing static load tests of pile foundations are difficult to accurately evaluate the bearing capacity and deformation characteristics of pile foundations, which may lead to unreasonable design or the pile foundation cannot meet the engineering requirements, which will lead to tilt, settlement or structural damage of the building.
Design a pile foundation static load test device, including a steel plate, a hydraulic cylinder bracket, a hydraulic cylinder, a hydraulic pressure plate and a fixed block. The force generated by the hydraulic cylinder is transmitted to the pile foundation to measure the load and deformation characteristics to ensure the accuracy of the test. and stability.
The device can accurately evaluate the bearing capacity and deformation characteristics of pile foundations, avoid unreasonable design and structural damage, and ensure the safety and stability of the building.
Smart Images
Figure CN222349779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pile foundations, in particular to a pile foundation static load test device. Background Art
[0002] Pile foundation static load refers to the load applied to the pile foundation in a static state. It is a commonly used method to evaluate the bearing capacity and deformation characteristics of the pile foundation under static load. Pile foundation static load test is a commonly used pile foundation testing method, which can provide important information such as the bearing capacity and deformation characteristics of the pile foundation, and is of great significance for engineering design and construction.
[0003] However, the existing static load test of pile foundation can provide information on the bearing capacity of pile foundation, including ultimate bearing capacity and deformation characteristics. If the test is not carried out, the designer will not be able to accurately evaluate the bearing capacity of the pile foundation, which may lead to unreasonable design or the pile foundation cannot meet the engineering requirements. If the bearing capacity of the pile foundation is insufficient or the deformation is too large, it may cause the building to tilt, settle or structural damage. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the pile foundation static load test in the prior art can provide the bearing capacity information of the pile foundation, including the ultimate bearing capacity and deformation characteristics, etc. If the test is not carried out, the designer will not be able to accurately evaluate the bearing capacity of the pile foundation, which may lead to unreasonable design or the pile foundation cannot meet the engineering requirements. If the bearing capacity of the pile foundation is insufficient or the deformation is too large, it may cause the tilt, settlement or structural damage of the building, and a pile foundation static load test device is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pile foundation static load test device, comprising a steel plate, the top of the steel plate is connected to a hydraulic cylinder bracket, the top of the hydraulic cylinder bracket is provided with a circular hole, the inside of the circular hole is penetrated by a hydraulic cylinder telescopic rod, the top of the hydraulic cylinder telescopic rod is connected to a hydraulic cylinder, the bottom of the hydraulic cylinder telescopic rod is connected to a hydraulic pressure plate, and the bottom of the steel plate is provided with a pile foundation.
[0006] Preferably, a second fixing block is connected to the bottom of the steel plate, and one end of the second fixing block is connected to a connecting plate.
[0007] Preferably, the bottom of the second fixing block is connected to a telescopic rod, and the bottom of the telescopic rod is connected to the first fixing block.
[0008] Preferably, a fence is provided at one end of the first fixing block, and a base plate is provided at the bottom of the first fixing block.
[0009] Compared with the prior art, the advantages and positive effects of the utility model are:
[0010] 1. In the utility model, by starting the hydraulic cylinder, the hydraulic cylinder telescopic rod generates a downward force, driving the hydraulic pressure plate to press the steel plate. Since the bottom of the steel plate is connected to the pile foundation, the force generated by the hydraulic cylinder will be transmitted from the steel plate to the pile foundation, thereby accurately evaluating the bearing capacity of the pile foundation.
[0011] 2. In the utility model, the connecting plate connected between the second fixing block connected to the bottom of the steel plate and the fence arranged at one end of the first fixing block prevent the steel plate from deflecting when subjected to force, thereby ensuring the conduct of the test. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A three-dimensional structural schematic diagram of a pile foundation static load test device is proposed for the utility model;
[0013] Figure 2 A partial structural schematic diagram of a pile foundation static load test device is proposed for the utility model;
[0014] Figure 3 The utility model provides a partial structural schematic diagram of a pile foundation static load test device.
[0015] Legend: 1. Base plate; 2. Fence; 4. Pile foundation; 5. First fixed block; 6. Telescopic rod; 7. Second fixed block; 8. Connecting plate; 9. Steel plate; 10. Hydraulic cylinder bracket; 11. Hydraulic cylinder; 12. Telescopic rod of hydraulic cylinder; 13. Hydraulic pressure plate; 14. Round hole. DETAILED DESCRIPTION
[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0018] Example 1
[0019] like Figure 1-Figure 3As shown, the utility model provides a technical solution: a pile foundation static load test device, including a steel plate 9, the top of the steel plate 9 is connected to a hydraulic cylinder bracket 10, the top of the hydraulic cylinder bracket 10 is opened with a circular hole 14, the inside of the circular hole 14 is penetrated by a hydraulic cylinder telescopic rod 12, the top of the hydraulic cylinder telescopic rod 12 is connected to a hydraulic cylinder 11, the bottom of the hydraulic cylinder telescopic rod 12 is connected to a hydraulic pressure plate 13, and the bottom of the steel plate 9 is provided with a pile foundation 4.
[0020] In this embodiment, a hydraulic cylinder support 10 is connected to the top of the steel plate 9, and the steel plate 9 provides support for the hydraulic cylinder support 10. A circular hole 14 is opened on the top of the hydraulic cylinder support 10, and a hydraulic cylinder telescopic rod 12 is connected to the inside of the circular hole 14. The circular hole 14 is a telescopic activity channel for the hydraulic cylinder telescopic rod 12. A hydraulic cylinder 11 is connected to the top of the hydraulic cylinder telescopic rod 12. A hydraulic cylinder 11 is arranged on the top of the hydraulic cylinder support 10. The hydraulic cylinder support 10 provides support for the hydraulic cylinder 11. A tension meter is installed on the hydraulic cylinder 11 to measure the force applied to the pile. The load size on the foundation 4, the bottom of the hydraulic cylinder telescopic rod 12 is connected with a hydraulic pressure plate 13, the hydraulic cylinder telescopic rod 12 and the hydraulic pressure plate 13 are fixedly connected, and a pile foundation 4 is arranged at the bottom of the steel plate 9. By setting the pile foundation 4 at the bottom of the steel plate 9 and starting the hydraulic cylinder 11 at the same time, the start of the hydraulic cylinder 11 causes the hydraulic cylinder telescopic rod 12 to generate a downward force, driving the hydraulic pressure plate 13 to press against the steel plate 9. Since the bottom of the steel plate 9 is connected with the pile foundation 4, the force generated by the hydraulic cylinder 11 will be transmitted from the steel plate 9 to the pile foundation 4, thereby accurately evaluating the bearing capacity of the pile foundation 4.
[0021] Example 2
[0022] like Figure 1-Figure 3 As shown, the bottom of the steel plate 9 is connected to a second fixed block 7, one end of the second fixed block 7 is connected to a connecting plate 8, the bottom of the second fixed block 7 is connected to a telescopic rod 6, the bottom of the telescopic rod 6 is connected to a first fixed block 5, one end of the first fixed block 5 is provided with a fence 2, and the bottom of the first fixed block 5 is provided with a bottom plate 1.
[0023] In this embodiment, the bottom of the steel plate 9 is connected to a second fixed block 7, the steel plate 9 and the second fixed block 7 are fixedly connected, one end of the second fixed block 7 is connected to a connecting plate 8, the second fixed block 7 and the connecting plate 8 are fixedly connected, the connecting plate 8 connects the four groups of second fixed blocks 7 connected to the bottom of the steel plate 9 into a whole, so as to prevent the steel plate 9 from being twisted and deformed by the load generated by the hydraulic cylinder 11, the bottom of the second fixed block 7 is connected to a telescopic rod 6, the second fixed block 7 and the telescopic rod 6 are fixedly connected, and the bottom of the telescopic rod 6 is connected to the first fixed The fixed block 5, the telescopic rod 6 and the first fixed block 5 are fixedly connected. The arrangement of the telescopic rod 6 ensures that when the hydraulic cylinder 11 generates a load on the steel plate 9, the steel plate 9 will not tip over under the support of the telescopic rod 6. The telescopic rod 6 also allows the steel plate 9 to have space to move while being supported. A fence 2 is arranged at one end of the first fixed block 5. The connecting plate 8 connected between the second fixed block 7 connected to the bottom of the steel plate 9 and the fence 2 arranged at one end of the first fixed block 5 ensures that the steel plate 9 will not deviate when subjected to force, thereby ensuring the conduct of the test.
[0024] The working principle of this embodiment is as follows: when in use, first a dynamometer is installed on the hydraulic cylinder 11 to measure the size of the load applied to the pile foundation 4. Then, the pile foundation 4 is set at the bottom of the steel plate 9, and the hydraulic cylinder 11 is started at the same time. The start of the hydraulic cylinder 11 causes the hydraulic cylinder telescopic rod 12 to generate a downward force, driving the hydraulic pressure plate 13 to press against the steel plate 9. Since the bottom of the steel plate 9 is connected to the pile foundation 4, the force generated by the hydraulic cylinder 11 will be transmitted from the steel plate 9 to the pile foundation 4, thereby accurately evaluating the bearing capacity of the pile foundation 4. The setting of the telescopic rod 6 ensures that when the hydraulic cylinder 11 generates a load on the steel plate 9, the steel plate 9 will not tip over under the support of the telescopic rod 6. The telescopic rod 6 also allows the steel plate 9 to have space to move while being supported. Finally, the connecting plate 8 connected between the second fixed block 7 connected to the bottom of the steel plate 9 and the fence 2 set at one end of the first fixed block 5 ensures that the steel plate 9 will not deviate while being subjected to force, thereby ensuring the progress of the test.
[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A pile foundation static load test device, comprising a steel plate (9), characterized in that: The top of the steel plate (9) is connected to a hydraulic cylinder support (10), a circular hole (14) is formed on the top of the hydraulic cylinder support (10), a hydraulic cylinder telescopic rod (12) is passed through the inside of the circular hole (14), the top of the hydraulic cylinder telescopic rod (12) is connected to a hydraulic cylinder (11), the bottom of the hydraulic cylinder telescopic rod (12) is connected to a hydraulic pressure plate (13), and a pile foundation (4) is provided at the bottom of the steel plate (9).
2. A pile foundation static load test device according to claim 1, characterized in that: The bottom of the steel plate (9) is connected to a second fixing block (7), and one end of the second fixing block (7) is connected to a connecting plate (8).
3. A pile foundation static load test device according to claim 2, characterized in that: The bottom of the second fixing block (7) is connected to a telescopic rod (6), and the bottom of the telescopic rod (6) is connected to the first fixing block (5).
4. A pile foundation static load test device according to claim 3, characterized in that: A fence (2) is provided at one end of the first fixing block (5), and a bottom plate (1) is provided at the bottom of the first fixing block (5).