标准摘要
[中文适用范围]： 本文件根据 EN 1997-1 和 EN 1997-2 规定了作为岩土勘察服务一部分的抽水测试要求。 本文件适用于在含水层上进行的抽水测试，其渗透性使得从井中抽水可以在数小时或数天内产生测压水头的降低，具体取决于地面条件和目的。 它涵盖了在土壤和岩石中进行的抽水测试。 本文件涉及的测试旨在评估含水层的水动力参数和井参数，例如： ——含水层的渗透性， — 抽水的影响半径， — 井的抽水速率， — 井水位下降的响应。 抽水期间的含水层， — 集肤效应， — 井储存， — 抽水后含水层恢复的响应。 [外文原描述]： This document establishes requirements for pumping tests as part of geotechnical investigation service in accordance with EN 1997-1 and EN 1997-2. This document applies to pumping tests performed on aquifers whose permeability is such that pumping from a well can create a lowering of the piezometric head within hours or days depending on the ground conditions and the purpose. It covers pumping tests carried out in soils and rock. The tests concerned by this document are those intended for evaluating the hydrodynamic parameters of an aquifer and well parameters, such as: — permeability of the aquifer, — radius of influence of pumping, — pumping rate of a well, — response of drawdown in an aquifer during pumping, — skin effect, — well storage, — response of recovery in an aquifer after pumping.
英文名称Geotechnical investigation and testing — Geohydraulic testing — Part 4: Pumping tests