深部工作面顶板砂岩水害防治研究与应用

Research and Application of the Prevention and Control of Water Damage of Roof Sandstone in Deep Working Face

3上1109工作面为矿井目前最深部开采的一个工作面,地质构造较发育,上覆顶板水未曾疏放。在矿井瞬变电磁探的基础上,综合现有水文地质资料,进行了水文地质条件分析,明确了工作面生产影响因素为3煤顶板砂岩水,进行了开采涌水量预计,并提出了详细的防治水方案,有效地防治了顶板砂岩水害,达到了保障安全生产的目的。

3upper1109 working face is a deepest currently mining face of the mine, the geological structure of it is developed, and the overlying roof water hasn＇t been drainaged. On the basis of transient electromagnetic magnetic survey of the mine, combined with the existing hydrogeological data, analyzes the hydrogeological conditions, clears that the influencing factors of face production is the water in roof sandstone of 3 coal, estimates the mining water inflow, and proposes a detailed scheme for water prevention and control, which has controlled the water damage of roof sandstone effectively and achieved the purpose of protecting the safety in production.