Rockburst mechanism research and its control

被引:167
作者
He, Manchao [1 ]
Ren, Fuqiang [1 ]
Liu, Dongqiao [1 ]
机构
[1] China Univ Min & Technol, Sch Mech & Civil Engn, State Key Lab Geomech & Deep Underground Engn, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
Rockburst; Stress paths; Energy-absorbing bolt; Rockburst control; TRUE TRIAXIAL STRENGTH; DYNAMIC-BEHAVIOR; ROCK; DEFORMABILITY; PREDICTION; FAILURE; ENERGY; BOLT;
D O I
10.1016/j.ijmst.2018.09.002
中图分类号
TD [矿业工程];
学科分类号
0819 ;
摘要
A new rockburst classification, innovative works in developing a "strainburst test machine" and an "impact-induced rockburst test machine" that can reproduce rockbursts in laboratory were researched. New concepts were proposed regarding the stress paths that take into account both the static and dynamic stresses analogous to that at excavation boundaries for generating artificially-induced strain-burst and impact-induced rockburst. As an important method for rockburst control, a novel energy-absorbing bolt was developed, which has a constant-resistance under both static and impact loadings and a large-elongation capacity for containing large deformations of rock masses under burst-prone conditions. (C) 2018 Published by Elsevier B.V. on behalf of China University of Mining & Technology.
引用
收藏
页码:829 / 837
页数:9
相关论文
共 22 条