引水隧道井检孔水文地质特征及井筒涌水量预算

在分析井检孔水文地质特征的基础上，对井筒充水因素进行了论述，认为第四系松散层孔隙水和秦岭中亚群上部基岩裂隙水是井简的主要充水水源，也是井简涌水量的主要组成部分。采用地下水动力学公式法对井筒涌水量进行了预算，其结果可作为井筒各含水层设计疏水降深状态下的正常涌水量和最大涌水量使用。

Hydrogeological Characteristics and Shaft Water Inflow Estimation of a Channeling Tunnel Pilot Hole

Based on a pilot hole of shaft hydrogeological characteristic analysis, discussed shaft water filling factors, considered that the main water filling sources have Quaternary loose beds pore water and upper part of the Middle Subgroup, Qinling Group fissure water, they are main part of shaft water inflow. The shaft water inflow has been estimated through groundwater dynamic formula method, the result can be the basis to estimate normal and maximum water inflow from each shaft aquifer under designed drainage drawdowns.