摘要
当煤层工作面推进方向与底板岩石大巷走向一致时,大巷围岩将长期受上部煤层回采时的采动影响。相对于其它跨采巷道,骑跨采巷道围岩的应力与变形相对较复杂。借助弹塑性理论,运用岩土数值模拟软件FLAC3D,分析骑跨采巷道围岩的应力、变形、塑性区分布的一般特征。可为骑跨采动压巷道的修复及加固设计提供理论依据。
When the direction of coal mining is the same with the trend of floor rock rodway,the surrounding rock stability of roadway would be influenced by the mining for a long time.Its stress and deformation have complex characteristics comparing with other cross-mining roadway.With the help of elastic-plastic theory,the established characters of stress,deformation and the plastic zone of the riding cross-mining roadway are analyzed by numerical simulation software FLAC3D.The research achievements can be supplied as the theoretical basis for the design of the restoration and reinforcement of riding cross-mining kinetic pressure roadway.
出处
《山西焦煤科技》
2011年第3期23-25,30,共4页
Shanxi Coking Coal Science & Technology
关键词
骑跨采
动压巷道
数值模拟
Riding cross-mining
Mining roadway
Numerical simulation
