摘要
提出了深部巷道分区破裂化的机制及其失稳准则,并用数值模拟软件再现了分区破裂化现象,发现分区破裂并非完全是连续的圆环形,而是存在孤立的破裂区域,并由此逐渐发展并合的产物。提出了分区破裂化与冲击地压发生的关系,并从分区破裂现象解释了冲击地压从孕育到发生的过程,对冲击地压的产生机理提供了新的思路。
The zonal fracturing mechanism and its failure criteria in deep tunnel were put forward, and the phenomenon of zonal fracture was reproduced using numerical simulation. Found that zonal fracture is not completely continuous cir- cular ring, but the breakdown of isolated regions, and from this merge into zonal product. The relationship between zon- al fracture and rock burst was put forward, and rock burst breeding process to its occurrence were explained from the zonal fracture phenomenon,and provided a new way of thinking for rock burst generating mechanism.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2010年第2期185-189,共5页
Journal of China Coal Society
基金
国家重点基础研究发展计划(973)基金资助项目(2005CB221503)
“十一五”国家科技支撑计划重点项目(2006BAK03B06)
