Crush resistance, extraction resistance and horizontal static load test equipment of high piles

A static load test and horizontal static load technology, which is applied in the test of infrastructure, construction, infrastructure engineering, etc., can solve the problems of heavy sampling tasks, troublesome erection and disassembly, and increase the cost and difficulty of the test.

Active Publication Date: 2019-03-22
JIAN YAN FOUND ENG
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AI Technical Summary

Problems solved by technology

4. There are a large number of high piles in the photovoltaic field. According to the sampling inspection ratio recommended by the current pile foundation specification, the sampling inspection task is very heavy. The traditional pile foundation static load test erection and disassembly are troublesome and time-consuming, which is not conducive to saving construction period and cost. Power stations are mostly built in the field, and overly heavy static load test equipment will increase the cost and difficulty of the test
Since there is no specific specification for the detection method of this kind of photovoltaic high pile, this patent designs a set of compression, pullout and horizontal static load tests for high piles exposed to the ground. The principle of this set of equipment is simple and easy to operate. , convenient loading and unloading, low cost, and convenient for quick random inspection of high pile foundations in photovoltaic fields. This set of equipment intends to fill the gap in this regard

Method used

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  • Crush resistance, extraction resistance and horizontal static load test equipment of high piles
  • Crush resistance, extraction resistance and horizontal static load test equipment of high piles
  • Crush resistance, extraction resistance and horizontal static load test equipment of high piles

Examples

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Embodiment Construction

[0035] This example is based on the compression, pullout and horizontal bearing capacity testing project of a high pile foundation in a photovoltaic field in Tai'an, Shandong. The pile types involved include PHC300-AB-70-7, PHC300-C-70-9, and PHC400-B-95 -7 Three kinds of high-strength prestressed pipe piles. The design length of PHC300-AB-70-7 pile and PHC400-B-95-7 pile is 7.0m, the depth of penetration is 3.8m, and the exposed depth is 3.2m. The design length of PHC300-C-70-9 pile is 9.0m, and the depth of penetration is 3.5m. , 5.5 meters exposed. During construction, the long spiral technology is used to lead the hole first, and then the vibrating hammer is used to press it in. Field test 81 PHC300-AB-70-7 piles, 21 PHC400-B-95-7 piles, 28 PHC300-C-70-9 piles were subjected to single pile vertical compression static load test, single Pile uplift static load test and single pile horizontal static load test.

[0036] Single pile vertical compression static load test

[...

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Abstract

The invention provides crush resistance, extraction resistance and horizontal static load test equipment of high piles, and belongs to the technical field of geotechnical engineering tests. The crushresistance, extraction resistance and horizontal static load test equipment of the high piles comprises a counter-force module, a load module, a monitoring module and the like, according to a crush resistance, extraction resistance and static load test, a lack load is transmitted to a test pile foundation through a hoop, a horizontal static load test can act a horizontal load on the pile top through a pile cap, and a high-precision laser displacement sensor is adopted in corresponding displacement measurement. According to the crush resistance, extraction resistance and horizontal static loadtest equipment of the high piles, the defect of a traditional pile foundation static load test technology in high pile test at a certain height of exposure ground is overcome, the crush resistance, extraction resistance and horizontal static load test of the high pile foundation can be realized, and corresponding bearing capacity is judged. The crush resistance, extraction resistance and horizontal static load test equipment of the high piles is simple and convenient to operate, has the low cost, has good adaptation according to different pile types and pile diameters, has quick detection workperiod, can rapidly and accurately complete the crush resistance, extraction resistance and horizontal bearing capacity detection of a large number of the pile foundations of a whole photovoltaic field, and completion acceptance of the pile foundations of the photovoltaic field is accelerated.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering testing, in particular to a high pile compression resistance, pullout resistance and horizontal dead load test equipment. Background technique [0002] 76% of my country's land is abundant in sunlight, and light energy resources are evenly distributed; compared with hydropower, wind power, nuclear power, etc., solar power generation has no emissions and noise, and the application technology is mature, safe and reliable. With the country's emphasis on new energy and green energy, the photovoltaic industry has developed rapidly in recent years. The photovoltaic field is mainly composed of foundation, upper bracket and solar panels, and the foundation type usually adopts reinforced concrete prefabricated piles. In the design of photovoltaic devices, it is considered that the photovoltaic panels can receive light energy to the maximum extent, protect the photovoltaic panels and avoid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 刘金波朱春明李翔宇杜风雷张松刘丰敏毛安琪
Owner JIAN YAN FOUND ENG
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