岩土工程勘察和试验.采用现场仪表的岩土工程监测.第3部分:随线位移测量:倾角仪

[中文适用范围]： 本文件规定了通过用于岩土监测的测斜仪测量沿线的位移。 地面、与地面相互作用的结构、岩土填料和岩土工程的性能监测的一般规则在本文件中还提到了挠度计（见附件 B），以补充测斜仪，用于确定跨水平测量线的水平位移。 注：一般来说，有两个独立的位移分量作用在测量线上。 测斜仪可以确定垂直测量线的两个分量。 对于水平线，测斜仪仅限于确定垂直分量。 如果与 ISO 18674-2 结合应用，本文件允许确定作用于任何方向的位移。 本文件适用于： ——检查与观测设计程序相关的岩土工程设计； ——施工前、施工中和施工后岩土结构的监测（例如自然坡度、切坡、路堤、开挖墙、地基、水坝、垃圾场、隧道）； ——导出岩土关键参数（例如，从桩荷载试验或试挖隧道的结果）； ——识别和监测地面中的主动剪切面。 注：本文件满足通过测斜仪对地面、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，作为根据参考文献 [1] 和 [2] 进行岩土调查和测试的一部分。 [外文原描述]： ISO 18674-3:2017 specifies the measurement of displacements across a line by means of inclinometers carried out 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. ISO 18674-3:2017 also refers to deflectometers (see Annex B) to supplement inclinometers for the determination of horizontal displacements across horizontal measuring lines. NOTE In general, there are two independent displacement components acting across measuring lines. Inclinometers allow the determination of the two components for vertical measuring lines. For horizontal lines, inclinometers are limited to the determination of the vertical component only. If applied in conjunction with ISO 18674‑2, ISO 18674-3:2017 allows the determination of displacements acting in any direction. ISO 18674-3:2017 is applicable to: - checking geotechnical designs in connection with the Observational Design procedure; - monitoring of geotechnical structures prior to, during and after construction (e.g. natural slopes, slope cuts, embankments, excavation walls, foundations, dams, refuse dumps, tunnels); - deriving geotechnical key parameters (e.g. from results of pile load tests or trial tunnelling); - identification and monitoring of active shear planes in the ground. NOTE ISO 18674-3:2017 fulfils the requirements for the performance monitoring of the ground, of structures interacting with the ground and of geotechnical works by the means of inclinometers as part of the geotechnical investigation and testing in accordance with References [1] and [2].