Test fixture and test method for rock burst in single-face empty state of rock

• Main Authors: ZHU JIANBO, TANG WEIXIONG, ZHAO XIAOLING, CAO PEIWANG, LI GANG, ZHOU TAO
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a test fixture and a test method for rock burst in a single-face empty state of rock, the test fixture comprises a rock test piece, and further comprises a base, a right-angle U-shaped groove, a baffle plate, a torsion dynamometer and a cushion block, the front end of a bottom plate of the base is provided with scales, and the bottom plate of the base is provided with a countersunk screw hole A; screw holes corresponding to the countersunk screw holes A are formed in the bottom of the right-angle U-shaped groove. The right-angle U-shaped groove is detachably connected with the base through countersunk screws. The rock test piece is placed in the right-angle U-shaped groove, the cushion block is placed at the top of the rock test piece, and the baffle is of a cuboid structure and is placed on one side of the rock test piece; a countersunk screw hole B is also formed in one side of the right-angle U-shaped groove, and a non-through screw hole corresponding to the countersunk screw hole B