非稳定流抽水试验在农村安全供水工程中的应用

Unsteady Flow Pumping Test in the Rural Safe Water Supply Engineering

在我国农村地区建立一套统一、完整、高质量的供水设施,不仅能满足农村人群的基本生活条件,而且能加快农村的社会发展进程。因此,完善的农村安全供水工程,是确保农村用水安全的重要保障,也是当前水利工作的重要任务。在农村安全供水工程中,水源选择是关键问题之一,通过非稳定流抽水试验进行水文地质勘查,了解含水层的的特性,测定水文地质(含水层)参数,为正确地选取水源,完善农村安全供水工程提供有效依据。结合四川省雅安市某县的农村安全供水工程实例,采用非稳定流抽水试验进行研究,推导出单井非稳定流简易抽水试验计算公式,并结合水位恢复法求出了相应的水文地质参数,最后评价了水源选取和工程类型确定的合理性。

China is a large agricultural country,in rural areas to create a unified,complete,high-quality water supply facilities,not only meet the basic living conditions of rural populations,and promote rural community development process.Therefore,the complete safety of water supply projects in rural areas is important to ensure the protection of water security in rural areas is an important task for the current water.Safe water supply projects in rural areas,water is the key to select one of the issues of non-steady flow through the pumping test conducted hydrogeological investigation to understand the characteristics of the aquifer measured hydrogeologic(water layer) parameters for the correct selection of water sources,improve the rural safe water supply project to provide an effective basis.In this paper,the rural county of Sichuan Province,Yaan City,safe water supply engineering example,the use of non-steady flow of pumping tests,the paper derive simple single well pumping test of non-steady flow calculations,the water level recovery method combined with the corresponding hydrogeological obtained parameter selection and final evaluation of the water to determine the reasonableness of the project type.