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A platform for research: civil engineering, architecture and urbanism
Frost heaving prevention performance test experiment device and method for pile body
The invention discloses a frost heaving prevention performance test experiment device and method for a pile body. The frost heaving prevention performance test experiment device comprises a sample cylinder, a cold bathing plate, a fixed support and a base. In order not to limit the frost heaving prevention of the pile body, a central circular hole is formed in the cold bathing plate. The fixed support is formed by assembling a stainless steel annular plate, stainless steel connection rods and a stainless steel circular plate. An annular refrigerating fluid circulation pipe is arranged on the base and provides temperature for the bottom of a sample. Small circular holes are densely distributed in a water-permeable plate on the base. The method includes the steps of placing the sample cylinder in the fixed support, installing the base, filling the sample cylinder with the test pile body and soil materials according to test requirements, placing the cold bathing plate to the top of the sample, connecting the cold bathing plate, a refrigerating fluid outlet of the base and a refrigerating fluid inlet of the base to an external refrigeration device, starting the refrigeration device and a collection device, and starting the test. The frost heaving performance such as frost heaving displacement and frost heaving force of pile foundations in frozen earth areas can be tested indoors, test factors can be controlled, operation is convenient, workloads of site tests are greatly reduced, and the frozen earth testing technical means are further enriched.
Frost heaving prevention performance test experiment device and method for pile body
The invention discloses a frost heaving prevention performance test experiment device and method for a pile body. The frost heaving prevention performance test experiment device comprises a sample cylinder, a cold bathing plate, a fixed support and a base. In order not to limit the frost heaving prevention of the pile body, a central circular hole is formed in the cold bathing plate. The fixed support is formed by assembling a stainless steel annular plate, stainless steel connection rods and a stainless steel circular plate. An annular refrigerating fluid circulation pipe is arranged on the base and provides temperature for the bottom of a sample. Small circular holes are densely distributed in a water-permeable plate on the base. The method includes the steps of placing the sample cylinder in the fixed support, installing the base, filling the sample cylinder with the test pile body and soil materials according to test requirements, placing the cold bathing plate to the top of the sample, connecting the cold bathing plate, a refrigerating fluid outlet of the base and a refrigerating fluid inlet of the base to an external refrigeration device, starting the refrigeration device and a collection device, and starting the test. The frost heaving performance such as frost heaving displacement and frost heaving force of pile foundations in frozen earth areas can be tested indoors, test factors can be controlled, operation is convenient, workloads of site tests are greatly reduced, and the frozen earth testing technical means are further enriched.
Frost heaving prevention performance test experiment device and method for pile body
WANG TIANLIANG (author) / YUE ZURUN (author) / ZHAO DEJIE (author) / LIN YONGQING (author)
2015-08-12
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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