A STUDY ON THE STRUCTURE OF KARST AQUIFER MEDIUM AND THE GROUNDWATER FLOW IN HOUZHAI UNDERGROUND RIVER BASIN
YANG Yong
Abstract：Based on pulse test, the pulse response curve and flow recession curve are analysed for studying the structure of karst aquifer medium. It is proved that there are three types of aquifer medium, i.e. karst fissure and conduit net, unitary karst conduit and karst fissure net. Among the three kinds of medium, the karst fissure and pore take the predominant place, which may make up 83.1% to 96.9% of the total aquifer medium volume. But karst tube only makes up 3.1% to 16.8% of the total volume. Hydrogeological features differentiate greatly in different types of aquifer mediums. Water level in karst fissure and conduit net medium rises fast but falls slow, so the fluctuation of the water table is quite gentle. Water level in the unitary karst conduit not only rises fast but also falls fast, correspondingly, the fluctuation of the water table is quite violent. And the fluctuation of the water table in karst fissure net medium is between the above-mentioned two media types.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 17-20 )