地下水水动力弥散问题中弥散度的单孔确定方法研究

THE DETERMINATION OF DISPERSITY IN A HYDRAULIC DISPERSION PROBLEM BY USING THE SINGLE WELL METHOD

本文提出了利用单孔进行弥散实验,确定地下水含水层弥散度的新方法,给出了数学模型、求解过程及方法。提出了用计算机自动处理求得最佳参数的直线回归法与非线性迭代法相结合的方法。不但进行了理论上的详细推导,而且通过实例进行了验证,结果很好。本文提出的方法原理通俗易懂,计算过程简单,易于实行,成本低,具有重要实际意义。

Conducting a dispersion test by using a single well is a new method to determine the dispersity in an aquifer. In this paper a mathematic model as well as solution procedure and method are presented. A method isproposed, i. e. with the help of computer automatic processing, combining the linear regression method with non-linear iteration method to provide the best parameter. The detailed theoretical derivation of the method is alos given, and the examples used here further confirm this method. This new method is proved to be very efficient and its principle, easy to understand. The process of calculation for this method is quite simple, and the cost, very low, with an important significance in practice.