【摘要】 安徽北部岩溶地下水的动态特征,可用泉的流量动态及地下水位动态来表征。（1）大泉的衰减特征值β=0.03～0.04。（2）岩溶裸露区的水位动态特征方程为:h_t=hoe（3）隐伏岩溶区为向斜储水盆地,上覆第四系含水岩组,有“天窗”与岩溶水发生水力联系。从某大型供水源地的孔群抽水试验表明:凡有“天窗”补给量加入岩溶水的观测孔,其S—lgt曲线在出现第一直线斜率段m₁之后又出现第二较缀的直线斜率段m₂,同时每个孔在该段的斜率相近,因此可以 则可同时求出岩溶水的导水系数T、及“天窗”补给量Q_天。更多还原

【Abstract】 The feature of the flow regime of karst groundwater in northern Anhui can be expressed by the dynamic behaviors of spring flow and groundwater level.1.The characteristic value of large springβ = 0.03-0.042. The equation for the fluctuation of water level in exposed karst areas is expressed as3. Hidden karst areas are synclinal water-storing basins overlain by Quaternary water-bearing formation hydraulically connected to karst water system through the "skylights" ( openings ) . Pumping tests in well field in a large source area for water supply show that on the S-lgt curve of observation holes in which karst water is replenished by water flowing through vertical channels or "skylights" from above, the appearing of the slope of the first straight line m1 is followed by that of the second one m2, meanwhile, the slopes of the straight line sections for the two holes are approximate to each other. ConsequentlyThen the two slopes of the straight line sections m1 and m2 are as follows,Finally the coeffict of transmissivity of karst water T and the replenishment through the "skylight" Qw can be obtained,更多还原