US 12,203,899 B1Granted

Sample mounting device for a direct tensile test of rock mass

AssigneesInstitute of Geology and Geophysics, Cas, Yunnan Dianzhong Water Diversion Engineering Co.

InventorsNing Liang, Jing Xu, Shufang Li, Tao Wang, Shengwen Qi, Jianing Cong, Bowen Zheng, Songfeng Guo, Xin Wang, Lina Ma, Shuaihua Song, Yongchao Li, Yu Zou, Xiaokun Hou, Zan Wang, Weiwei Zhu, Chao Jin, Tianming Huang, Yanlong Kong, Yuran Zhang

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Abstract

A sample mounting device for direct tensile test of rock mass is provided, which includes a first positioning stage, a second positioning stage, a first support piece, a second support piece, and a screw drive mechanism. The second positioning stage is arranged above the first positioning stage and capable of moving up and down, and cushion blocks for gluing with the rock mass are coaxially and detachably arranged at opposite ends of the first positioning stage and the second positioning stage, and a rock mass mounting area is formed between the two cushion blocks. A screw of the screw drive mechanism includes a first thread segment and a second thread segment with opposite thread directions. The first support piece is connected with the first thread segment through a nut seat, and the second support piece is connected with the second thread segment through a nut seat.

Claims10

Dependent claims

A sample mounting device for direct tensile test of rock mass, wherein the sample mounting device comprises

a first positioning stage, a second positioning stage, a first support piece, a second support piece, and a screw drive mechanism;
the second positioning stage is arranged above the first positioning stage and capable of moving up and down, cushion blocks for gluing with the rock mass are coaxially and detachably arranged at opposite ends of the first positioning stage and the second positioning stage, and a rock mass mounting area is formed between the cushion block of the first positioning stage and the cushion block of the second positioning stage;
a screw of the screw drive mechanism comprises a first thread segment and a second thread segment with opposite thread directions, the first support piece is connected with the first thread segment through a nut seat, the second support piece is connected with the second thread segment through a nut seat, support end surfaces of the first support piece and the second support piece are opposite to each other, and the first support piece and the second support piece are symmetrically arranged on both sides of the rock mass mounting area.

Dependencies are inferred from the claim text.