基于流量衰减曲线的岩溶含水层水文地质参数推求方法

doi:10.13278/j.cnki.jjuese.201506205

Abstract

Abstract:

Analysis of flux recession process is an important method to calculate hydrogeological parameters of karst aquifers. Based on the theoretical method of flux recession analysis, the author took the flux records from Sep.25th to Oct. 13th, 2013 as samples out of the total 8 784 sets of flux data through monitoring the export of underground river per hour throughout the whole year to fit flux recession process by MATLAB; and then the attenuation coefficients of three phases were obtained as 0.642 5, 0.025 8 and 0.001 5 respectively; at last, the ratios of hydraulic conductivity to specific yield were calculated, and the hydrogeological parameters were confirmed by given cranny ratio which was roughly equal to the specific yield. The result shows that the hydraulic conductivity for karst conduit, fissured and bedrock medium in Zhaidi basin were 258.87 m²/d, 3 865.98 m²/d, and 40.64 m²/d respectively. With the requisite hydrogeological survey, defined conduit distribution, and runoff distance, the method of flux recession analysis could be used to calculate the conductive capability and specific yield of different media for a karst aquifer.

Key words: flux recession curve, hydrogeological parameter, underground river, aquifer medium

CLC Number:

P642.26

Zhao Liangjie, Xia Riyuan, Yi Lianxing, Yang Yang, Wang Zhe, Lu Haiping. Calculation of Hydrogeological Parameters for Karst Aquifer Based on Flux Recession Curve[J].Journal of Jilin University(Earth Science Edition), 2015, 45(6): 1817-1821.

References

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Calculation of Hydrogeological Parameters for Karst Aquifer Based on Flux Recession Curve

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