岩土工程勘察与测试 现场仪器岩土监测 第4部分：孔隙水压力测量：测压计

[中文适用范围]： 本文件规定了通过安装用于岩土监测的测压计测量饱和地面的孔隙水压力和测压水平。 ISO 18674-1 中介绍了地面性能监测、与地面相互作用的结构、岩土填料和岩土工程的一般规则。 如果与 ISO 18674-5 结合应用，本文件中描述的程序可以确定作用在地面上的有效应力。 本文件适用于： ——监测作用于岩土结构（例如码头墙、堤坝、开挖墙、地基、水坝、隧道、斜坡、路堤等）上和内部的水压； ——监测土壤和填充物的固结过程（例如地基下方和路堤中）； ——评估岩土结构的稳定性和适用性； ——检查与观测设计程序相关的岩土工程设计。 注：本文件满足通过渗压计对地面、与地面相互作用的结构以及岩土工程进行性能监测的要求，根据参考文献 [4] 和 [5] 作为岩土工程调查和测试的一部分安装。 本文件涉及安装在地面上的测量设备。 对于与锥入度试验相关的孔隙水压力测量，请参见 ISO 22476-1。 [外文原描述]： This document specifies the measurement of pore water pressures and piezometric levels in saturated ground by means of piezometers installed for geotechnical monitoring. General rules of performance monitoring of the ground, of structures interacting with the ground, of geotechnical fills and of geotechnical works are presented in ISO 18674‑1. If applied in conjunction with ISO 18674-5, the procedures described in this document allow the determination of effective stresses acting in the ground. This document is applicable to: — monitoring of water pressures acting on and in geotechnical structures (e.g. quay walls, dikes, excavation walls, foundations, dams, tunnels, slopes, embankments, etc.); — monitoring of consolidation processes of soil and fill (e.g. beneath foundations and in embankments); — evaluating stability and serviceability of geotechnical structures; — checking geotechnical designs in connection with the Observational Design procedure. NOTE This document fulfils the requirements for the performance monitoring of the ground, of structures interacting with the ground and of geotechnical works by the means of piezometers, installed as part of the geotechnical investigation and testing in accordance with References [4] and [5] This document relates to measuring devices, which are installed in the ground. For pore water pressure measurements carried out in connection with cone penetration tests, see ISO 22476-1.