摘要
通过了解煤层采空区机理,进一步分析了煤层采出厚度、煤层埋藏深度、煤层顶板岩性、开采方法、采煤层数、小煤矿密度、采空时间对采空区塌陷的影响,以使煤矿采空区塌陷减到最少。
Through understanding mechanism of old coal mining area, the influences of the coal bed production thickness, coal bed embedded depth, coal bed roof lithologic characters, exploiting method, coal cutting level, small mine density and gob time on collapse in old coal mining area were further analyzed, therefore made collapse in old coal mining area reduce to minimum.
出处
《山西建筑》
2009年第15期102-103,共2页
Shanxi Architecture
关键词
采空区
塌陷
弯曲带
冒落带
开采方法
old coal mining area, collapse, flexural blend, caving blend, exploiting method