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.

Mingyi Zhang

Yonghong Wang

Xiang Fang

Jun Wang

Qijun Zhang

Chuantong Zhang

Bo Han

Yamei Zhang

Yishun Jiang

Yuning Ge

Weihui Tian

Lin Yang

Yan Li

Jiangbin Wu

Xiaoyu Bai

Cuicui Li

Guodong Shao

Nan Yan

Yongfeng Huang

Yujin Jiao

Dazhong Xu

Shiqiang Li

Xiaoning Liu

Ziguang Jia

Xun Zhu

Baochang Zhang

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

A device and a method for testing a compression amount of a pile body of a rock-socketed cast-in-place pile is provided. The testing device includes open flexible pipes which are correspondingly bound with two main reinforcements in the pile body of the rock-socketed cast-in-place pile, and lengths of the open flexible pipes are the same as those of the bound main reinforcements. One end of each of the two open flexible pipes is located at a bottom end of a corresponding main reinforcement and fixedly connected with a first sealing sheet, and other ends of the two open flexible pipes are located at a top portion of the rock-socketed cast-in-place pile and fixedly connected with second sealing sheets. A closed rigid pipe is located in the open flexible pipe, and pipe bodies of the closed rigid pipe and the open flexible pipe are not in contact.

Device and method for testing compression amount of pile body of rock-socketed cast-in-place pile

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

Mingyi Zhang