摘要
矿井涌水量计算是煤矿水文地质工作的重要内容,也是矿床水文地质勘查的主要任务。基于地下水动力学的"大井法"在预测矿井涌水量时简便有效,但应用"大井法"时,引用影响半径R对预测结果有着较大的影响。以朝克乌拉煤矿2101工作面涌水量预测为例,采用解析法与数值法对比来探讨引用影响半径R的影响,结果表明:对于承压含水层或补给条件较好的潜水含水层,宜采用吉哈尔特公式来计算R。研究成果为矿井涌水量计算提供了科学的依据。
The calculation of mine water inflow is an important content of the hydro- geological work of the coal mine and also the main work of the hydro- geological exploration of deposits. The large- well method based on groundwater dynamics is simple and effective for the prediction of mine water inflow,but when it is used,the reference influence radius R has great influence on the prediction result of the water inflow. In this paper,the water inflow prediction of 2101 working face in Chaokewula Mine was taken as an example,the analytical method and numerical method were used to explore the influence of R. The results showed that for confined aquifer or the unconfined aquifer with good recharge condition,it was better to use Gehalt formula to calculate R. The research results provided scientific basis for the calculation of mine water inflow.
出处
《矿业安全与环保》
北大核心
2015年第4期59-62,共4页
Mining Safety & Environmental Protection
关键词
矿井涌水量预计
大井法
引用影响半径
数值模拟
mine water inflow prediction
large-well method
reference influence radius
numerical simulation
