《Hydrological Processes》杂志刊登“含水层识别和参数估计的新方法 ”

作者：Cem B. Avci, A.Ufuk Şahin, Emin Çiftçi

刊物：Hydrological Processes ，2013年8月，27卷17期，2485–2497页

关键词：面积增量法；含水层类型识别；抽水试验；非均质含水层

摘要：评估含水层参数的标准做法是由抽水试验获得的地下水位压降数据与该实验含水层系统的理论函数曲线相匹配。在对数时间下，对压降数据求导，得出的曲线形状常常作为一种诊断工具，用以识别正在进行抽水试验的含水层系统。本研究探讨把面积增量法（IAM）作为含水层参数估计程序的一种补充，也作为可替代的识别含水层系统的诊断工具。绘制出IAM检测曲线也是本项研究的内容，本文分别针对理想受压，渗漏，有界和非承压含水层绘制出其IAM曲线。由于不同类型的含水层其特征各异，因此可以利用这些特性快速确定含水层的类型。本文通过分析各类含水层的野外数据对方法进行了验证，包括漏水，无围压，有界和异质含水层等。结果表明，IAM作为一种诊断工具，不仅支持从标准曲线匹配程序获得的水力参数，而且还可用以确定含水层系统的特点，因此该方法是可行的。

A new method for aquifer system identification and parameter estimation

Authors: Cem B. Avci, A.Ufuk Şahin, Emin Çiftçi

Journal: Hydrological Processes, Volume 27, Issue 17, pages 2485–2497, 15 August 2013

Keywords: incremental area method; aquifer type identification; pumping test; heterogeneous aquifer

Abstract: The standard practice for assessing aquifer parameters is to match groundwater drawdown data obtained during pumping tests against theoretical well function curves specific to the aquifer system being tested. The shape of the curve derived from the logarithmic time derivative of the drawdown data is also very frequently used as a diagnostic tool to identify the aquifer system in which the pumping test is being conducted. The present study investigates the incremental area method (IAM) to serve as an alternative diagnostic tool for the aquifer system identification as well as a supplement to the aquifer parameter estimation procedure. The IAM based diagnostic curves for ideal confined, leaky, bounded and unconfined aquifers have been derived as part of this study, and individual features of the plots have been identified. These features were noted to be unique to each aquifer setting, which could be used for rapid evaluation of the aquifer system. The effectiveness of the IAM methodology was investigated by analyzing field data for various aquifer settings including leaky, unconfined, bounded and heterogeneous conditions. The results showed that the proposed approach is a viable method for use as a diagnostic tool to identify the aquifer system characteristics as well as to support the estimation of the hydraulic parameters obtained from standard curve matching procedures.

原文链接：http://onlinelibrary.wiley.com/doi/10.1002/hyp.9352/abstract