公开(公告)号：US11085858B1

公开(公告)日：2021-08-10

申请号：US17222405

申请日：2021-04-05

申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Yunliang Tan ,  Yanchun Yin ,  Tongbin Zhao ,  Yubao Zhang ,  Weiyao Guo ,  Xingxue Tang ,  Hongjie Zhou

IPC分类号： G01N3/00 ,  G01N3/06 ,  G01N3/12

摘要： The present disclosure provides a true triaxial tester with adjustable loading stiffness and a test method, relating to the technical field of rock mechanics. The tester includes a first principal stress variable stiffness loading apparatus, a second principal stress variable stiffness loading apparatus, a third principal stress loading apparatus, a monitoring system, and a control system. The monitoring system includes a stiffness sensor, a pressure sensor, and a displacement sensor. Loading stiffness in a first principal stress direction and a second principal stress direction is adjustable. The tester has the following advantages: it has fixed loading stiffness, can complete stiffness loading of one side being free and five sides being variable, and is easy to operate.