矿井涌水量计算的非稳定流解析法

Unsteady Flow Analytic Method in Mine Inflow Computation

目前矿井涌水量预测普遍存在着评价方法简单、机械套用计算公式、或利用应用软件玩模拟游戏等现象,反而对非常适用的非稳定流解析法重视不够。根据非稳定流解析法公式的基本原理,对其在矿井涌水量预测方面的适用性进行了讨论,并以山西省霍州煤电集团公司某煤矿采区水文地质补充勘查报告矿井涌水量预测为例进行了计算,计算结果表明:非稳定流解析法的雅柯布(近似)公式对于煤层底板突水的矿井涌水量预测,较稳定流解析法和传统的类比外推法在理论上更适用,操作上更灵活;与数值法相比,其又具有较好的直观性。在实践中,该方法计算过程清晰,计算结果可靠,具有推广应用价值。

At present,phenomena of unduly simple assessment method,applying computation formulae by rote,or using application software to play simulation games are omnipresent in mine inflow prediction,on the contrary,highly rated unsteady flow analytic method neglected.Based on the method＇s formulae basic principles,discussed its applicability on mine inflow prediction,to take the hydrogeological supplementary exploration report＇s mine inflow prediction of a Huozhou Coal and Power Group coalmine in Shanxi Province as an example to carry out computation,the results have demonstrated that：the Jacob formula（approximate expression of the Theis formula） of unsteady flow analytic method is more applicable than steady flow analytic and traditional analogical extrapolation methods theoretically,and more flexible in operations;comparing with numerical method it has better intuitiveness.In practice,the method has well defined computational process,reliable computational solutions,thus worthwhile popularization and application.