摘要
基于固定岩梁和顶板岩层形变压力的假设,研究认为巷道顶板岩层的变形与破坏是在地层压力作用下,从顶板表面开始,由下而上、逐层向上发展的,直至到达可以承载地层压力而不被破坏的顶板岩层。据此研究提出了层状顶板巷道锚索(锚杆)支护载荷的计算方法,为煤巷锚索(锚杆)支护强度设计提供了依据。
Based on the hypothesis of deformation pressure of fixed rock beam and strata rock formations,it is believed by researchers that deformation as well as damage of roadway roof starts from the surface of roof strata and develops gradually from bottom and upwards layer by layer until reaching the rock formation that can carry the strata pressure with no damages.The calculating method of supporting load of bolting cables（roof bolts） for roadways with laminated roof strata is proposed as the basis for the design of supporting strength of bolting cables（roof bolts） of coal entries.
出处
《中国煤炭》
北大核心
2010年第9期59-63,共5页
China Coal
关键词
巷道支护
形变压力
锚索支护
锚杆支护
支护强度
计算方法
Roadway support
deformation pressure
support strength
support by bolting cable
calculating method
