| 抽水试验中两种直线图解法的对比 |
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| 引用本文： | 刘天霸,石建省,张永波,高业新.抽水试验中两种直线图解法的对比[J].地质科技情报,2011,30(6):122-127. |
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| 作者姓名： | 刘天霸 石建省 张永波 高业新 |
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| 作者单位： | 中国地质科学院水文地质环境地质研究所,石家庄,050061 |
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| 基金项目： | 国家“973”项目(2010CB428800) |
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| 摘 要： | 应用定流量非稳定流抽水试验获取含水层水文地质参数时,常用的求解方法是Jacob直线图解法,而拟合直线的方法一般是基于最小二乘理论,但该方法易受异常值影响,拟合结果常常不理想,从而导致求解的参数值误差较大.相比最小二乘法,基于信息损失最小化的最频值算法对异常值不敏感,是一种更为稳健的算法.将最频值算法与Jacob直线图解...
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| 关 键 词： | 抽水试验 水文地质参数 直线图解法 最频值算法 最小二乘算法 |
Comparison on Two Kinds of Linear Graphic Approaches in Pumping Test |
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| LIU Tian-ba
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SHI Jian-sheng
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ZHANG Yong-bo
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GAO Ye-xin.Comparison on Two Kinds of Linear Graphic Approaches in Pumping Test[J].Geological Science and Technology Information,2011,30(6):122-127. |
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| Authors: | LIU Tian-ba SHI Jian-sheng ZHANG Yong-bo GAO Ye-xin |
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| Institution: | LIU Tian-ba,SHI Jian-sheng,ZHANG Yong-bo,GAO Ye-xin(Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China) |
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| Abstract: | In order to acquire aquifer hydrogeologic parameters by unsteady flow pumping at a constant rate,the commonly used way is Jacob linear graphic approach,and the method of fitting line is basing on the least squares principle.But this method is easily influenced with outliers,and the fitting result is usually not satisfying,thus it leads to the errors of parameters becoming large.Compared with the least squares principle,the most frequent value method(MFV),which is theoretically derived from the minimization ... |
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| Keywords: | pumping test hydrogeologic parameter linear graphic approach the most frequent value principle the least squares principle |
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