煤矿安全2012，Vol.43Issue(12)：32-36,5.
上保护层开采卸压范围的相似模拟试验
Similar Simulation Experiment of the Released Range of Upper Protective Seam Mining
李篷 1陈延可 2王列平 1任卫兵2
作者信息
- 1. 安徽理工大学测绘学院,安徽淮南232001
- 2. 安徽理工大学能源与安全学院,安徽淮南232001
- 折叠
摘要
Abstract
In order to study the released range of the upper protective seam for the protected seam,it took No.762 protective seam mining face as the research object which was in Haizi Coal Mine of Huaibei Mining Group.It investigated rock distribution characteristics for roof and floor of the 7# protective seam,and the coal stress,displacement distribution law of the 9# protected seam.Based on these results,it analyzed the scope of protection for protective seam mining.The results showed that:under the condition of fully mining for No.762 protective seam mining face,through calculating the experimental results,it obtained that the effective pressure-relief protection angle was 78° and 79° under the up and down of verge direction,the max expansion rate of the 9# coal seam was 0.81%.关键词
上保护层/卸压范围/相似模拟Key words
upper protective seam/released range/similar simulation分类
矿业与冶金引用本文复制引用
李篷,陈延可,王列平,任卫兵..上保护层开采卸压范围的相似模拟试验[J].煤矿安全,2012,43(12):32-36,5.
