公开(公告)号：US20190078987A1

公开(公告)日：2019-03-14

申请号：US15762712

申请日：2017-04-28

Applicant: SHANDONG UNIVERSITY

Inventor： Qiangyong ZHANG ,  Shucai LI ,  Chuancheng LIU ,  Hanpeng WANG ,  Dong WU ,  Wen XIANG ,  Yue ZHANG ,  Mingyang REN

IPC: G01N3/06 ,  G01N3/12

CPC classification number: G01N3/064 ,  G01N3/12 ,  G01N33/24 ,  G01N2203/0003 ,  G01N2203/0019 ,  G01N2203/0048 ,  G01N2203/0208 ,  G01N2203/0256 ,  G01N2203/0641 ,  G01N2203/0682

Abstract: An ultrahigh pressure true three-dimensional non-uniform loading/unloading and steady pressure model test system in which an ultrahigh pressure true three-dimensional non-uniform loading/unloading device is arranged in a combined bench counterforce device and used for carrying out ultrahigh pressure true three-dimensional loading/unloading on a test model, and an intelligent hydraulic loading/unloading and steady pressure numerical control system is connected with the ultrahigh pressure true three-dimensional non-uniform loading/unloading device via a high-pressure oil pipe; the ultrahigh pressure true three-dimensional non-uniform loading/unloading device is controlled in a digital servo manner via an input instruction of the intelligent hydraulic loading/unloading and steady pressure numerical control system to carry out ultrahigh pressure true three-dimensional gradient non-uniform loading/unloading and steady pressure control; an automatic model displacement test system automatically acquires the displacement of any part inside the model; and a high-definition multi-probe peeping system observes a cavern excavation deformation and failure process dynamically in real time.