摘要
针对杏花煤矿东一采区属高瓦斯高地应力区域，通过对该区域地质条件综合分析，对沿空留巷技术的理论研究，积极探索、完善留巷技术，合理地确定支护方式及支护参数，采用提前预埋负压管路从根本上有效解决了留巷深处瓦斯超限棘手问题。效果良好．通过一系列切实可行的措施，实践证明既确保了安全生产工作，又获得了良好的技术经济效益。
Abstract
Aiming at the east a knop coal mining belongs to the gas high geostress area, through to the region geological conditions, comprehensive analysis on along goaf leave lane technology theory research, active exploration, perfecting the left lane, reasonably
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