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san ruan mei ceng hui cai xiang dao wei yan kong zhi ji shu yan jiu
Author(s): 
Pages: 27-29,36
Year: Issue:  12
Journal: Coal

Keyword:  软岩巷道围岩控制联合支护工业实践;
Abstract: 文章结合火铺矿的复杂的地质及煤层赋存条件,对三软煤层回采巷道的围岩变形特征进行了理论分析,指出原有支护方案的不足,并针对其不足对提出该条件下围岩控制思路,而后筛选适用的支护方案,并最终确定选用U型棚联合支护。根据工业试验及现场实测数据进行分析,该方案取得了较好的支护效果,有效地控制了表面及深部围岩的剧烈变形,使围岩破坏范围减小,同时进一步提高了回采巷道的掘进速度。
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