【摘要】 <正>地下水在含水层中的渗透运动特征及渗流理论研究,取决于含水介质空隙特征。欲确定邯邢地区岩溶渗透模式,首先应研究区内寒武——奥陶系灰岩空隙及含水岩系的基本特征。本文试图讨论上述问题。更多还原

【Abstract】 The author studies the general features and permeable properties of dissolution pore system and karst fissure system based on the data obtained from the field and experiment, and comes to the conclusion that the permeability of dissloution pore system, karst fissure system, and dissolution pore-karst fissure system are in accord with the Darcy’s law. Dissolution pore medium, characterized by large porosity and weak permeability, is homogenously water-bearing and mainly provides the space for water storage. Karst fissure system, characterized by small porosity and . strong permeability, is heterogenously water-bearing and functions as the . channel system for transmitting water. In this way,dissolution pores and karst fissures may be simplified into "rigid" media. Karst fissure media exhibit slight drawdown in water table and gentle hydraulic gradient, but a fairly large area of influence. Therefore, such media may be simplified as "dual media" and expressed with a mathematic model. Under the simplified actual conditions, a differential equation and definite conditions can be obtained for the solution of an unbounded confined aquifer with axial symmetry and no leakage under the state of drawdown S2.更多还原