公开(公告)号：US11835491B2

公开(公告)日：2023-12-05

申请号：US17586061

申请日：2022-01-27

申请人： Taiyuan University of Technology

发明人： Guorui Feng ,  Tingye Qi ,  Jinwen Bai ,  Chao Song ,  Shuiyun Hou ,  Lirong Li ,  Yanqun Yang ,  Xudong Shi

IPC分类号： G01N3/10 ,  G01N33/24 ,  G01N3/12 ,  G01N3/02

CPC分类号： G01N3/10 ,  G01N33/24 ,  G01N3/02 ,  G01N3/12 ,  G01N2203/0019 ,  G01N2203/0048 ,  G01N2203/0254 ,  G01N2203/0264

摘要： A device and method for testing the bearing capacity of grouped pillars in the inclined goaf under coupled biaxial static and disturbance stresses are provided. Four protection rings are arranged on a base, each protection ring is installed with one machine frame therein, a bottom end of the machine frame is connected with the base and a top end thereof is connected with a transverse frame. Sliding rails are arranged on two sides of the base, side frames are installed on the sliding rails. A vertical force loading device is arranged at a bottom of a workbench, transverse force loading devices are arranged on inner sides of the side frames respectively. A force disturbance device is arranged at the bottom of the transverse frame. An upper slidable clamping seat and an upper pressure disk are arranged above the samples, and a lower slidable clamping seat is arranged below the samples.