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本文根据贵州普定后寨地下河出口流量的衰减分析,水位的趋势分析和水化学成份与流量的相关分析,讨论了岩溶水的基本迳流形式,迳流形式的转化和相互补给关系,以及岩溶水的运动过程。 地下河流域的主要贮水空间是溶管和溶隙,两者构成了溶隙—溶管双重含水介质,溶隙的体积比溶管大得多,使溶隙水成为主要贮存的水体。双重含水介质中的地下水可以划分成两种迳流形式——隙流和管流,两者流线方向近于垂直,由于两种水流的水位变幅不同,导致它们的相互补给,低水位期溶隙水补给管道,而高水位期溶管水流向溶隙。两种迳流形式随季节而变化,枯水期以溶隙水为主,丰水期溶管水流占重要地位,溶管虽然贮水能力差,但汇水、导水能力特别强,因而常形成岩溶地块中的强迳流带,该带在地下水位趋势面图上表现为凹槽,由于强、弱迳流带的水位、水力坡度和流速的变化不同,产生了不同的流动状态和复杂的运动过程。
Based on the attenuation analysis Guizhou Puding outlet flow of the underground river, the trend level of analysis and correlation analysis water chemical composition and flow, discussed the basic runoff in the form of karst water runoff in the form of conversion and mutual supply relationships, and Karst water movement process. The main reservoir space underground river basins and are dissolved solvii tube, both constitute solvii - double pipe aqueous medium solution, the volume ratio of solvent solvii larger pipe, so that a major reservoir solvii water body of water. Dual groundwater aqueous medium may be divided into two forms runoff - flow pipe and the flow gap, both the flow direction nearly perpendicular, since the flow of two different level amplitude, resulting in their mutual supply, the low level of Slitwater supply pipe, while the high water phase solution to the solution gap. The two types of effluent flow vary with the seasons, mainly in the period of dry period, while the solution flow in the wet season plays an important role. Although the water storage capacity is poor, the soluble water and water-carrying capacity are particularly strong, which often results in the formation of karst In the block, there is a strong tidal current zone, which shows a groove on the trend map of groundwater level. Due to the different water level, hydraulic gradient and flow rate in the strong and weak tidal zone, different flow states and complicated Movement process.