标准摘要
[中文适用范围]： 本文件规定了通过总压力单元（TPC）测量应力变化。 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 18674-4 结合应用，本文件可以确定作用在地面上的有效应力。 本文件适用于： ——监测地面和地质工程结构（例如填土坝或隧道衬砌）中应力状态的变化； ——监测两种介质界面处的接触压力（例如挡土墙上的土压力；地基底部的接触压力）； ——与观测设计程序相关的岩土工程设计和施工调整的检查； ——评估施工期间或施工后的稳定性。 附件 B 给出了 TPC 在岩土工程中的应用指南。 注：本文件满足通过总压力单元作为监测系统一部分对地面、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 EN 1997-1[1] 和 EN 1997-2[2] 进行岩土勘察和测试。 [外文原描述]： This document specifies the measurement of stress changes by means of total pressure cells (TPC). 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 18674‑4, this document allows the determination of effective stress acting in the ground. This document is applicable to: — monitoring changes of the state of stress in the ground and in geo-engineered structures (e.g. in earth fill dams or tunnel lining); — monitoring contact pressures at the interface between two media (e.g. earth pressure on retaining wall; contact pressure at the base of a foundation); — checking geotechnical designs and adjustment of construction in connection with the Observational Design procedure; — evaluating stability during or after construction. Guidelines for the application of TPC in geotechnical engineering are presented in Annex B. 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 total pressure cells as part of the geotechnical investigation and testing according to EN 1997-1 [1] and EN 1997-2 [2] .
英文名称Geotechnical investigation and testing — Geotechnical monitoring by field instrumentation — Part 5: Stress change measurements by total pressure cells (TPC)