本文件规定了通过总压力传感器（TPC）测量应力变化。ISO 18674提出了地面、与地面相互作用的结构、岩土填料和岩土工程性能监测的一般规则？1. 如果与ISO 18674一起应用？4、本文件允许确定作用在地下的有效应力。 本文件适用于: -监测地面和地质工程结构（例如土坝或隧道衬砌）应力状态的变化； -监测两种介质之间界面处的接触压力（例如，挡土墙上的土压力；地基底部处的接触压力）； -检查岩土工程设计和与观测设计程序有关的施工调整；-评估施工期间或施工后的稳定性。 TPC在岩土工程中的应用指南见附录B。 注:根据EN 1997-1[1]和EN 1997-2[2]，作为岩土工程调查和试验的一部分，本文件满足了通过总压力传感器对地面、与地面相互作用的结构和岩土工程进行性能监测的要求。

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].