摘要
讨论了如何应用数值积分方法求解含水层中地下水非稳定流抽水试验的解析模型以获得含水层的水文地质参数,并以Theis公式为例讨论求解原理。引入了MatLab的数值积分工具和优化工具,轻松实现了对水文地质参数的求解,此举既保证了解的可靠性和唯一性,也大大提高了方法的可操作性。最后以一个具体的承压水非稳定流抽水试验为例验证了这个方法,所得的结果与应用配线法得到的结果基本一致,从而肯定了方法的应用价值。研究结果尽管是针对Theis模型进行的,但求解原理同样适用于其他各种模型。
The application of numerical integral method to the study of Theis analytic model is discussed and put forward in this paper. Based on the s-t data obtained through pumping test of the transient flow and by using the Theis model as a reference model, the Matlab＇s numerical integranal tool and optimization tools are utilized to obtain transmissibility T and storage coefficient μ. This not only guarantees the reliability and uniqueness of the results, but improves the maneuverability of solution procedure. In conclusion, a detailed pumping test of the transient flow in confined aquifer is presented to validate the reliability of the method by comparing the results to results acquired by using curve fitting method. Though the research is aimed at Theis model, the solution principle can also be applied to other various models.
出处
《江苏地质》
2007年第3期242-246,共5页
Jiangsu Geology
基金
南京大学"985工程"二期"教学创新和素质培养"研究项目资助
