摘要
渗透系数的求取量化是水文地质和工程地质工作广为利用的一种方法。本文针对巢湖市地质疗养院一带基岩裂隙分布区的单孔抽水试验资料,分别使用裘布依公式和水位恢复法对渗透系数进行了计算,结果显示:用裘布依公式得到的平均渗透系数为0.144538 m/d,用水位恢复法测得渗透系数为0.142659 m/d。通过实验对比分析,得出水位恢复阶段求取渗透系数比稳定流水位恒定阶段精度高。
The quantification of permeability coefficient is a widely used method in hydrogeology and engineering geology.In this paper,based on the single-hole pumping test data of bedrock fissure distribution area in the Dizhi Sanatorium in Chaohu City,the permeability coefficient is calculated to be 0.144538 m·d-1 in average by using Dupuit's equation and 0.142659 m·d-1 by water level recovery method.Through experimental comparison and analysis,it is concluded that the accuracy of the permeability coefficient calculated in the stage of water level recovery is higher than that in the stage of stable water level being constant.
作者
张峰敏
王小勇
钱家忠
ZHANG Fengmin;WANG Xiaoyong;and QIAN Jiazhong(School of Resource and Environmental Engineering,Hefei University of Technology,Hefei,Anhui 230009,China;Anhui Engineering Reconnaissance Institute,Hefei,Anhui 230011,China)
出处
《安徽地质》
2023年第1期38-41,47,共5页
Geology of Anhui
基金
国家自然科学基金项目“基岩裂隙水非达西流与溶质非费克运移机制及其升尺度模型”(编号:41831289)
安徽省公益性地质调查项目“郯庐断裂带安徽段地质环境调查与评价”(编号:2015-g-26)联合资助。
关键词
抽水试验
渗透系数
水位恢复
pumping test
permeability coefficient
water level recovery
