Changing Regularity of Rock Damage Variable and Resistivity under Loading Condition
In this paper, the stress-strain, resistivity and acoustic emission simultaneous test of compression test for rock have been carried out to obtain the regression equation between the resistivity, and elastic modulus of rock under various damage state; then based on the rock damage theory, derived the changing regularity of rock damage variables and resistivity under loading condition. In accordance with the acoustic emission characteristic relative ratio, this paper has verified the feasibility of its changing regularity. By virtue of this relation equation, it is possible to online monitor the extent of surrounding rock progressive damage in mined-out regions, so as to bring forward the time for danger warning. Consequently, it is capable to take control measures in the initial stage of the development of disaster, which has very important significance for the prevention and management of mine dynamic disasters.
rock damage resistivity relation equation acoustic emission
Yun-hai Wang Yong-feng Liu Hai-tao Ma
China Academy of Safety Science and Technology, Beijing 100012,China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1413-1421
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）