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：US20240110479A1

公开(公告)日：2024-04-04

申请号：US18172775

申请日：2023-02-22

Applicant: Qingdao University of Technology

Inventor： Yongjun ZHANG ,  Fei LIU ,  Sijia LIU ,  Junyi WANG ,  Bin GONG ,  Yingming WU ,  Ruiquan LU ,  Qingsong WANG ,  Qinghui XU ,  Xiaoming GUAN ,  Mingdong YAN ,  Xiangyang NI ,  Pingan WANG ,  Shuguang LI ,  Lin YANG ,  Ning NAN ,  Dengfeng YANG

IPC: E21F17/18

CPC classification number: E21F17/18 ,  E21D9/00

Abstract: The present disclosure provides a multi-factor quantitative analysis method for deformation of a neighborhood tunnel. The method includes the following steps: analyzing monitoring data generated at a tunnel site; simulating collapse occurring at a shallow buried section of a tunnel; determining the degree of influence of each factor on the tunnel and a stratum; and determining quantitative influence of each factor on tunnel deformation. The present disclosure can not only provide an accurate theoretical basis for the construction of the shallow buried section of the small-distance tunnel, but also guarantee safety and cost saving during tunnel construction.