Pile side negative friction resistance test device in frozen earth areas and application method thereof
A technology of negative friction resistance and testing equipment, which is applied in the test of basic structure, construction, basic structure engineering, etc., can solve the problems of many engineering accidents, and achieve the effect of accurate test results
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[0022] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, the pile side negative friction resistance testing device in the permafrost region of the present invention includes a hollow pile 2 and a strain gauge A3 and a strain gauge B4 arranged inside the hollow pile 2. The hollow pile 2 is arranged in a double-layer steel drum 1, and the double Inorganic thermal insulation mortar 20 is laid between the steel drums 1. The double-layer steel drum 1 is provided with a top cover 6, and a refrigeration pipe 17 is arranged along the circumference close to the inner wall of the double-layer steel drum 1. The refrigeration pipe 17 is connected with a refrigerator 18. A water supply device 11 is installed below the hollow pile 2 in the steel drum 1 and is connected to the pool 19 through pipelines. The upper and lower sides of the double-layer steel drum 1 are respectively provided with a top plate ...
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