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1. (WO2013143151) EXPERIMENT METHOD FOR SIMULATED IMPACT-TYPE ROCK BURST

Pub. No.:    WO/2013/143151    International Application No.:    PCT/CN2012/073439
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Sun Apr 01 01:59:59 CEST 2012
IPC: G01N 3/313
Applicants: CHINA UNIVERSITY OF MINING & TECHNOLOGY (BEIJING)
中国矿业大学(北京)
HE, Manchao
何满潮
SUN, Xiaoming
孙晓明
YANG, Xiaojie
杨晓杰
Inventors: HE, Manchao
何满潮
SUN, Xiaoming
孙晓明
YANG, Xiaojie
杨晓杰
Title: EXPERIMENT METHOD FOR SIMULATED IMPACT-TYPE ROCK BURST
Abstract:
An experiment method for a simulated impact-type rock burst, comprising the following steps: manufacturing a rock sample piece having a through hole or a half-formed hole; loading a three-way initial static load stress onto the rock sample piece; loading a disturbance load onto the rock sample piece for 0.5 to 10 minutes, observing whether or not a spalling phenomenon is found on the inner surface of the through hole or of the half-formed hole of the rock sample piece; if further destruction is found by observing whether or not the spalling phenomenon is found on the inner surface of the hole, then observing and recording the destruction process; if not, then increasing the value of the static load stress loaded onto the rock sample piece, or increasing the strength of the disturbance load and proceeding to repeat the experiment process until the rock sample piece enters the destruction process, observing and recording the destruction process, thus ending the impact rock burst experiment. Under the effect of the disturbance load, the experiment method successfully induces the occurrence of a rock burst phenomenon of the rock sample piece, and, by researching the mechanisms of the rock burst phenomenon of the rock sample piece, lays a foundation for gradual understanding and comprehension of the nature of actual rock burst phenomenon.