摘要
尝试利用非均匀围岩介质动态损伤声发射(Acoustic Emission,AE)总事件、能率、时间、空间结构参数、变形与应力尺度演化过程,进行不同尺度开采推进形成的采空区围岩介质损伤统计与宏观动力失稳时-空关系对比分析,找出采空区动力失稳预警量化依据.
The characters of non-uniform rock-media dynamical damage, including cumulative number of acoustic events （AE）, energy-rate, temporal and spatial parameters, scale of deformation and stress, etc. , were implement and compared of their relationship, and various in acoustic emissions that occur during micro-crack, so as to analyze the characteristics and internal regularity of various scale micro-damage and macro-dynamical instability or collapse in mined-out-area, and find out quantitative clue for collapsing prediction of mined-out-area.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第9期902-906,共5页
Journal of China Coal Society
基金
国家自然科学基金资助项目(10402033)
教育部西部矿山开采及灾害治理重点实验室重点资助项目(04JS19)
关键词
开采扰动区
变尺度采空区
动态损伤
excavation disturbed zone （EDZ）
various scale mined-out area
dynamical damage
