鹰骏三号矿井井筒涌水量预测与评价

Prediction and evaluation of shaft water inflow in Yingjun No.3 Mine

本文根据鹰骏三号矿井3个井筒检查钻孔分含水层进行抽水试验所获取的水文地质参数,应用地下水动力学,采用大井法对鹰骏三号矿井主立井、副立井、回风立井分别进行井筒涌水量预测,针对单孔未对全井段含水层进行抽水试验、无法得到单孔全部含水层水文地质参数的情况,根据井筒位置地质构造简单、基本无地层倾角、井检孔与井筒中心距离较近的条件,最终在本孔已获取的水文地质参数基础上,参考其他钻孔同层抽水试验水文地质参数最大值求得该含水层井筒涌水量,并对预测结果进行分析评价。最后提出基岩段井筒掘进采用冻结法,并对冻结法井筒掘进工艺给出了建议。

In this paper,according to the hydrogeological parameters obtained from the pumping test of the sub aquifer in three shafts of Yingjun No.3 Mine,the water inflow of the main shaft,auxiliary shaft and return air shaft of Yingjun No.3 coal mine was predicted by using the large well method,for the failure pumping test of the aquifer in the whole well section,and the situation was unable to obtain the hydrogeological parameters of all the aquifer in the single well,According to the conditions of simple geological structure,basically no formation inclination,and close distance between the well inspection hole and the center of the well shaft,based on the hydrogeological parameters obtained in this hole and the maximum hydrogeological parameters of the pumping test obtains the water inflow of the aquifer,the forecast results were analyzed.Finally,the freezing method and the process were given.