Qingdao University of Technology

Qingdao Green Technology Geotechnical Engineering Co., Ltd.

Chongqing University

China State Construction Zhongxin Construction Engineering Co., Ltd. Shandong Branch

Shandong Luqiao Group Co., Ltd., Jinan, China

Zhongji Jiurui Geotechnical Engineering Co., Ltd.

Guodong Shao

Yonghong Wang

Xiang Fang

Qijun Zhang

Jiangbin Wu

Chuantong Zhang

Jun Wang

Yan Li

Mingyi Zhang

Bo Han

Lin Cui

Lei Su

Wengang Zhang

Yishun Jiang

Yuning Ge

Weihui Tian

Shujuan Yang

Qianqing Zhang

Bingxiang Yuan

Jifei Cui

Zhaolong Li

Jian Huang

Xun Zhu

Baochang Zhang

A system and method for monitoring an earth pressure and displacement of a miniature steel pipe pile body. Sensor installation holes are drilled at predetermined positions outside the steel pipe pile body and sensor metal protective shell with a thickness slightly lower than that of the XY-TY02A resistance-type miniature earth pressure gauge is welded on the steel pipe pile body. The XY-TY02A resistance-type miniature earth pressure gauges are stuck on the steel pipe pile body. The transmission line of the XY-TY02A resistance-type miniature earth pressure gauges passes through the sensor installation holes and are connected to data acquisition system. The reflective sheet base is welded at the preset position of the miniature steel pipe pile and the reflective sheet is attached to the reflective sheet base to realize displacement monitoring.

System and method for monitoring earth pressure and displacement of miniature steel pipe pile body

Provided are a device for simulating a full-scale pile-sinking process of a static pressure pile by air bag preloading and a test method thereof. The device comprises a frame, a beam, a hydraulic jack, a model box, a model pile, a first sand layer, an undisturbed soil mass, a second sand layer, a rubber pad, a forcing air bag, a counter-force steel plate, a model box top cover, a forcing pipe, a pressure relief pipe, a steel casing and a control system. The first sand layer, the undisturbed soil mass, the second sand layer, the rubber pad, the forcing air bag and the counter-force steel plate are laid in the model box in sequence; and the steel casing passes through the model box top cover, the counter-force steel plate, the forcing air bag and the rubber pad in sequence and then reaches a bottom portion of the second sand layer.

Device for simulating full-scale pile-sinking process of static pressure pile by air bag preloading and test method thereof

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Qingdao, China

Guodong Shao