用水文、水文地质分析法计算基岩山区水文地质参数

CALCULATING HYDROGEOLOGICAL PARAMETERS AT BEDROCK MOUNTAIN REGION USING HYDROLOGY AND HYDROGEOLO GICAL ANALYTIC METHODS

本文根据枯水期基岩山区地下水的补给量等于河流排泄地下水量的原理,利用水文分析法,确定地下水向河流的排泄量,建立地下径流方程;利用水文地质分析法,按补给条件划分水文地质单元,计算各单元的降水入渗系数或地下径流模数。通过嵩山、箕山地区的实例运算,证明方法简便易行,取得的参数可信。

Based on the principle that in dry seasons, the quantity of groundwater supply at bedrock mountain regicnhequals to the riverer drainage guantity of groundwa-ter, using hydrological analytic methods, this paper defermines the drainage quantity of groundwater towards river and establishes the equation cf underground runoff. Using hydrogeological analytic method, it classifies the hydrogenlogical units according to the recharge conditions and calculates the cf precipitation infiltration coefficient or the modulus of underground runoff. By case histories calculation of Songshan, Jishan regions, it proves that this method is simple and easy to perform and the parameters ob ained are credible.