摘要
通过对 1 31 2采面相似材料模拟试验 ,观测上覆岩层的变化及破坏规律 ,即冒落带、裂隙带、岩层垮角等值变化 。
The change and rule of the rock seam over the coal, which include the change of caving zone, fissure zone , roof caving angle and so on ,are observed in this paper. And the circumstance of gas emission and gas outburst of the No.12 coal seam are deduced through the similar material simulation test of the No.1312 working face.
出处
《煤矿安全》
CAS
北大核心
2001年第6期20-22,共3页
Safety in Coal Mines
