锚网(索)支护煤巷顶板离层临界值分析  

Analysis on roof bedding separation critical value of coal mining gallery supported with bolts(cables)

作　　者：刘长武[1] 郭永峰[2] 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]中国矿业大学能源学院,江苏徐州221008

出　　处：《岩土力学》2003年第S2期231-234,共4页Rock and Soil Mechanics

摘　　要：顶板离层是开采过程中巷道矿压显现的主要表现形式之一。离层值的大小不仅和煤层赋存条件及开采技术条件等自然因素有关,而且和巷道的尺寸、支护方式以及支护强度等直接相关。在深入分析现场顶板离层监测手段和所存问题的基础上,对锚网巷道、锚网锚索联合支护巷道的顶板离层临界值进行了系统的分析。The roof bedding separation is one of the main manifestations of ground pressures on coal mine galleries in the mining process. Its value is related not only to such matural factors as the occurrence condition of coal seams and mining technical measures but also directly to the gallery size, supporting pattern and supporting strength. This present Paper, based upon thorough analyses of in-situ monitoring methos for the bedding separation and the problems concerned, studies systematicly the critical value of the roof bedding separation of coal mining galleries supported with bolt system or jointly supported with bolt-cable system.

关 键 词：煤层巷道 顶板离层 临界值 监测手段 

分 类 号：TD353.6[矿业工程—矿井建设]