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河间地带常可遇到非均质岩层。在这样的地区以地下水作供水水源或修建工程建筑时,有必要考虑河间地带地下渗流的一些特点:如潜水径流量的大小及其补给,是否存在地下分水岭,以及分水岭的位置及其迁移等。本文从稳定流层流理论出发,考虑河间有降水均匀渗入条件,导出河间地带含水层渗透性沿流程渐变时的潜水流量方程,并对地下水分水岭进行一些讨论。
Heterogeneic strata often encounter inhomogeneous rock formations. When using groundwater for water supply or building works in such areas, it is necessary to consider some of the characteristics of the underground seepage in the inter-river area such as the size of the submarine runoff and its recharge, the existence of underground watersheds, the location of the watershed and its relocation . Based on the theory of steady flow and laminar flow, considering the uniform infiltration of rainfall between rivers, the equation of the submarine flow when the permeability of the aqueduct in the inter-river zone changes along the flow gradient is derived, and some discussions are made on the groundwater watershed.