全程曲线拟合法和Aquifertest水文地质求参

Hydrogeological Parameters Solution Using Entire Curve Fitting Method and Aquifertest Software

抽水试验是获取含水层水文地质参数的主要方法,求参结果直接影响对调查区水文地质条件的认识和地下水开发利用。传统求参方法存在主观影响大、求参时间长、易受外界影响和抽水阶段数据的不足等问题。通过全程曲线拟合法和Aquifertest软件分别从配线法和水位恢复法两个角度进行求参,并结合全程曲线拟合法确定最终取值。结果表明,采用Aquifertest软件求参便捷、准确,与水位恢复法求参结果的差异相对较小,全程曲线拟合法求参值具有唯一性和可靠性,多种方法结合求参能更真实反映水文地质情况。

Pumping test is the main method to obtain aquifer hydrogeological parameters and the results directly affect the recognizing and exploita- tion of the hydrogeological conditions of study area. The traditional methods have the problems of being effected easily by subjective judgment and external environmental conditions, taking long time to calculate and lacking data about pumping stage. This paper used the entire curve fitting method and Aquifertest software from the standard curve method and recovery method to calculate parameters individually, and combined with the entire curve fitting method to determine the final value. The results show that using Aquifertest software method to calculate parameters is convenient and accurate; the results have smaller differences using water level recovery method ; and the entire curve fitting method has the advantage of unique- ness and reliability in deciding the parameters. Combining different methods can more truly reflect the hydrogeologieal conditions.