Qingdao University of Technology

Qingdao Green Technology Geotechnical Engineering Co., Ltd.

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

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

Zhongji Jiurui Geotechnical Engineering Co., Ltd.

Chongqing University

Chuantong Zhang

Yonghong Wang

Xiang Fang

Qijun Zhang

Jun Wang

Mingyi Zhang

Jiangbin Wu

Bo Han

Yishun Jiang

Yuning Ge

Weihui Tian

Guodong Shao

Yan Li

Yamei Zhang

Lin Cui

Lei Su

Wengang Zhang

Dazhong Xu

Shiqiang Li

Xiaoning Liu

Ziguang Jia

Shujuan Yang

Qianqing Zhang

Bingxiang Yuan

Jifei Cui

Xun Zhu

Zhaolong Li

Baochang Zhang

Jian Huang

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 testing apparatus for a pile end settlement of a rock-socketed driven PHC tube pile and an installation method thereof. The testing apparatus comprises a PHC tube pile, two measuring tubes, a cross pile tip, a pile tip steel plate, a fixer fixed in the PHC tube pile, a perforated steel plate located at a pile top of the PHC tube pile and a jack pressed on the perforated steel plate. The two measuring tubes are symmetrically arranged, the fixer is provided with two first measuring tube outlet holes, and the two measuring tubes respectively pass through the first measuring tube outlet holes of the fixer; and the perforated steel plate is also provided with two second measuring tube outlet holes, and the two measuring tubes respectively pass through the second measuring tube outlet holes of the perforated steel plate. (FIG.)

Testing apparatus for pile end settlement of rock-socketed driven PHC tube pile and installation method

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

Growing community of inventors

Qingdao, China

Chuantong Zhang