山东煤炭科技Issue(10)：58-60,3.DOI:10.3969/j.issn.1005-2801.2014.10.26
急倾斜煤层顶板深孔爆破防冲技术
Rock burst prevention technology using roof deep-hole blasting in steep seam
古亚丹1
作者信息
- 1. 甘肃靖远煤电股份有限公司王家山煤矿，甘肃白银 730913
- 折叠
摘要
Abstract
This paper, analyzed the hard roof movement and stress distribution in steep seam by the similar material simulation, to determine the optimal weak position of the roof deep hole blasting, its coordinates of x=0m to x=20m and x=60m to x=80m. Put forward the roof blasting scheme in steep seam of "end top combine, high and low shock". The roof dynamic monitoring showed that this scheme can reduce the working face support resistance and dynamic load coefifcient, reduce the periodic weighting step distance, reduce the lead roof pressure range effect.关键词
急倾斜煤层/顶板深孔爆破/最优弱化位置/顶板动态监测Key words
steep seam/roof deep hole blasting/optimal weak position/roof dynamic monitoring分类
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古亚丹..急倾斜煤层顶板深孔爆破防冲技术[J].山东煤炭科技,2014,(10):58-60,3.
