韩咀煤矿水文地质及矿井充水因素分析

Analysis of hydrogeological characteristics and water filling factors in Hanzui Coal Mine

通过对韩咀煤矿水文地质特征及矿井充水因素分析,认为矿井的主要充水水源为老空水、顶板砂岩裂隙水,间接充水水源为大气降水、地表水;主要充水通道为顶板垮落裂隙带、废弃老窑,其次为封闭不良钻孔、断裂构造。据矿井实际数据,按矿井充水程度等级将韩咀煤矿划分为充水性弱的矿井;按涌水量大小等级将其划分为矿井涌水量小的矿井。全面统计了井田自采采空区,井田内老空区、采空区,周边老空区、采空区积水面积以及积水量,证明老空水是矿井面临的最主要水害。采用比拟法和大井法对矿井涌水量进行了预测,预测到矿井未来3年正常涌水量为89. 7 m3/h,最大涌水量为110. 9 m3/h,可作为矿井防治水工作的依据。

Based on the analysis of hydrogeological characteristics and mine water filling factors in Hanzui Coal Mine,it is considered that the direct water filling sources of the mine are old goaf water and roof sandstone water,the indirect water filling water sources are meteoric water and surface water,the main water filling channels are roof collapse fracture zone,abandoned old mine,closed poor drilling and fault structure. According to the actual data of the mine,the mine is divided into the mine of weak water filling and small water inflow,and old goaf water is the most important water disaster faced by the mine. The analysis shows that in the next three years,the mine normal water inflow of 89.7 m 3/h and maximum water inflow of 110.9 m 3/h predicted by large well method can be used as the basis for mine water prevention and control.