岩溶管道径流公式研究

摘要

How to accurately calculate the Karst-fractured groundwater runoff has become the key of the karst groundwater calculation and simulation. Although Conduit Flow process (CFP) widely used internationally compared with the traditional calculation method of equivalent porous media seepage in calculation precision has been greatly improved, this method still ignore the morphological feature of Karst conduits development, only defines the circular cross section of the conduits, and the calculation does not flow. Aiming at the problems of CFP, this study from the tube formation and morphological characteristics, takes a research on Karst runoff formula. This method has a broad application prospect in the Karst runoff calculation and Karst-fractured groundwater seepage, providing a theoretical basis for the corresponding numerical simulation software development.%如何准确计算地下水在岩溶-裂隙管道中的径流成为了岩溶含水层地下水计算和模拟的关键,虽然目前国际上使用较为广泛的岩溶管道模拟方法Conduit Flow process(CFP)相比传统的等效多孔介质渗流计算方法在计算精度上有了很大的提高,但该方法仍然忽略了岩溶管道发育形态特征,仅将管道截面概化为圆形,且计算时未分流态.针对CFP法存在的上述问题,本研究从管道形成及形态特征入手,对岩溶管道径流公式进行研究,该方法在岩溶径流计算及岩溶裂隙含水层地下水渗流计算具有广泛应用前景,为相应数值模拟软件开发提供了理论基础.