Taiyuan University of Technology

Lirong Li

Guorui Feng

Jinwen Bai

Xudong Shi

Tingye Qi

Shuiyun Hou

Chao Song

Yanqun Yang

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.

Device and method for testing bearing capacity of grouped pillars in inclined goaf under coupled biaxial static and disturbance stresses

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Taiyuan, China

Lirong Li