摘要
尝试利用裂隙演化的非平衡统计理论对岩体断裂的非线性动力学问题进行简单描述,借助统计理论和扫描电镜(SEM)手段,对塌陷区围岩断裂失稳的声发射信号的特征参数进行系统分析,为塌陷区失稳位置的反演和准确推断提供了依据。
The nonlinear dynamics problem related to rock fracturing is simply described based on the non-balanced statistical theory of crack evolvement. By use of the hybrid analysis of the statistical theory and scan electron microscopy (SEM),the characters of acoustic emission (AE) signals coming from rock damage in subsiding area are synthetically analyzed and evaluated. These provide an evidence to reversely deduce and accurately infer the position of rock fracture and damage in subsiding area.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第2期272-276,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金(50074002)
教育部博士点基金(2000000802)资助项目
关键词
塌陷区
岩体断裂
断裂力学
声发射信号
扫描电镜
非平衡统计
fracture mechanics,acoustic emission signal,scan electron microscopy (SEM),non-balanced statistics,subsiding area
