摘要
随着矿井开采深度的增加,地质环境不断恶化,地应力增大,导致巷道顶板弯曲下沉,断面收缩变形,并常伴有顶帮锚杆崩断的现象。旗山煤矿13211工作面掘进过程中通过优化支护设计,调整支护参数,巷道顶板控制出现了明显好转,取得了较好的效果。
With the increasing of mining depth in mine, the steady deterioration of geological environment and the increasing ground stress lead to the winding and sinking of roadway roof, the eonstraction and deformation of cross--section , and the broken roof bolting. In the drilling course of 13211 Working Face in Qishan Colliery, the roadway roof controlling has improved and proved effective by optimizing supporting design and adjusting supporting parameter.
出处
《江西煤炭科技》
2009年第3期91-92,共2页
Jiangxi Coal Science & Technology
关键词
深部开采
软岩
支护参数
设计优化
deep mining
soft-- rock
support parameter
design optimum
