公开(公告)号：US20220275600A1

公开(公告)日：2022-09-01

申请号：US17678723

申请日：2022-02-23

Applicant: Qingdao University of Technology

Inventor： Xiaoyu BAI ,  Nan YAN ,  Yamei ZHANG ,  Mingyi ZHANG ,  Cuicui LI ,  Yongfeng HUANG ,  Yonghong WANG ,  Xiang FANG ,  Yujin JIAO ,  Lin YANG

IPC: E02D33/00 ,  E02D5/38

Abstract: The present disclosure provides a device and a method for testing the compression amount of a pile body of a rock-socketed cast-in-place pile. The testing device comprises open flexible pipes which are correspondingly bound with two main reinforcements in the pile body of the rock-socketed cast-in-place pile, and the 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 the bottom end of the corresponding main reinforcement and fixedly connected with a first sealing sheet, and the other ends of the two open flexible pipes are located at the pile block 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, pipe bodies of the closed rigid pipe and the open flexible pipe are not in contact.

公开(公告)号：US20220145574A1

公开(公告)日：2022-05-12

申请号：US17581912

申请日：2022-01-22

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  Qingdao Green Technology Geotechnical Engineering Co., Ltd. ,  Chongqing University

Inventor： Yonghong WANG ,  Shujuan YANG ,  Wengang ZHANG ,  Jiangbin WU ,  Jian HUANG ,  Qianqing ZHANG ,  Qijun ZHANG ,  Lei SU ,  Bingxiang YUAN ,  Jifei CUI ,  Xiang FANG ,  Chuantong ZHANG ,  Guodong SHAO ,  Zhaolong LI ,  Lin CUI

IPC: E02D33/00 ,  E02D5/30 ,  G01L1/22

Abstract: 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.

公开(公告)号：US20220145568A1

公开(公告)日：2022-05-12

申请号：US17581911

申请日：2022-01-22

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  Qingdao Green Technology Geotechnical Engineering Co., Ltd. ,  Zhongqing Jian'an Construction Group Co., Ltd.

Inventor： Yonghong WANG ,  Bo HAN ,  Jian HUANG ,  Qijun ZHANG ,  Jiangbin WU ,  Wengang ZHANG ,  Peiyuan LIN ,  Junning XIANG ,  Jun YAN ,  Bin WANG ,  Wenzhuo LIU ,  Chengyue JIA ,  Xiang FANG ,  Xin WANG ,  Zuodong LIANG

IPC: E02D17/04 ,  E02D5/30 ,  E02D5/46

Abstract: A concrete inside interface processing structure for secant pile construction, including secant concrete pile, formed plain concrete pile, rotary jet grouting piles, steel mesh sheet, ribbed steel bar, Y-shaped connecting piece, reinforced concrete pile, and U-shaped connecting piece; drilled holes are arranged at intervals along axis of the formed plain concrete pile; the ribbed steel bar is anchored in each drilled hole; the steel mesh sheet is formed by connecting longitudinal bars and transverse bars, and driven into a soil body between the formed plain concrete piles; the concrete layer is formed by spraying concrete on the steel mesh sheet; the reinforced concrete pile is cast at outside of the formed plain concrete pile, and tangent to the formed plain concrete pile, and interlocked with the rotary jet grouting piles; the rotary jet grouting piles are tangent to the formed plain concrete pile or secant concrete pile.