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A Straight-Line Method for Analyzing Residual Drawdowns at an Observation Well

机译:用于观察井剩余水量分析的直线方法

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摘要

Determination of the hydraulic parameters (transmissivity and storage coefficients) of a confined aquifer is important for effective groundwater resources. For this purpose, the residual drawdowns have been in use to estimate the aquifer parameters by the classical Theis recovery method. The proposed method of this paper depends on a straight-line through the field data and it helps to calculate the parameters quickly without any need for long-term pumping data. It is based on the expansion series of the Theis well function by consideration of three terms, and this approach is valid for the dimensionless time factor u' = S'r(2)/4Tt' <= 0.2. The method can be applied reliably to extensive and homogeneous confined aquifers resulting in different storage coefficients during the pumping and recovery periods (S not equal S'). It presents a strength methodology for the parameters decision making from the residual data in the groundwater field of civil engineering.
机译:确定承压含水层的水力参数(透射率和储水系数)对于有效的地下水资源很重要。为此,已使用剩余水位通过经典的Theis恢复方法估算含水层参数。本文提出的方法依赖于通过现场数据的直线,它有助于快速计算参数,而无需任何长期的泵送数据。它基于Theis井函数的扩展级,考虑了三项,并且该方法对于无量纲时间因子u'= S'r(2)/ 4Tt'<= 0.2有效。该方法可以可靠地应用于广泛而均质的承压含水层,从而在抽水和恢复期间(S不等于S')产生不同的存储系数。它提出了一种强度方法,用于根据土木工程地下水领域的残留数据进行参数决策。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第18期|978040.1-978040.5|共5页
  • 作者

    Cimen Mesut;

  • 作者单位

    Suleyman Demirel Univ, Fac Engn, Dept Civil Engn, TR-32260 Isparta, Turkey.;

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  • 正文语种 eng
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