1.1 本规程具体阐述了在隧道和公用设施施工期间使用分布式光纤传感器监测地面运动的方法和手段及其对现有公用设施的影响。 1.2 本规程适用于选择合适材料、设计、安装、数据收集、数据处理和结果报告的过程。 1.3 本惯例适用于所有运输水、污水、石油、天然气、化学品、电力、通信和大众媒体内容的公用事业。 1.4 本规程适用于所有运输和/或储存水或污水的隧道。 1.5 这种做法也适用于运输公用设施的隧道( 1.3 )，用于水电、交通、铁路、货运、胶囊运输和储存的水。 1.6 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.7 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本实践旨在帮助地下公用设施和隧道的工程师、承包商和业主/运营商成功实施分布式光纤传感，以便在现场规划施工之前以及公用设施和隧道施工和运营期间监测地面运动，以及此类地面运动对现有公用设施的影响。 5.2 在开始安装分布式光纤传感之前，承包商应获得新隧道/公用设施和现有公用设施的业主/运营商的明确书面授权，以评估分布式光纤传感用于监测预期目的的地面运动的可行性，并访问结构的某些位置和周围地面。安装人员可能还需要获得适用管辖机构的书面明确授权，如交通部、陆军工程兵团、环境保护部和其他部门。 5.3 工程师、承包商和业主/运营商还应认识到，在某些特殊情况下，使用分布式光纤传感监测公用设施和隧道周围的地面运动可能会干扰安装的光纤传感电缆附近某些设备或工具的使用。例如，维修活动可能需要临时拆除、重新定位或避开光缆。 5.4 工程师、承包商和业主/运营商应了解安装技术、光缆位置和保护如何影响DOFSS的性能。

1.1 This practice specifically addresses the means and methods for the use of distributed optical fiber sensors for monitoring ground movements during tunnel and utility construction and its impact on existing utilities. 1.2 This practice applies to the process of selecting suitable materials, design, installation, data collection, data processing and reporting of results. 1.3 This practice applies to all utilities that transport water, sewage, oil, gas, chemicals, electric power, communications and mass media content. 1.4 This practice applies to all tunnels that transport and/or store water or sewage. 1.5 This practice also applies to tunnels that carry the utilities in ( 1.3 ), water for hydropower, traffic, rail, freight, capsule transport, and those used for storage. 1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This practice is intended to assist engineers, contractors and owner/operators of underground utilities and tunnels with the successful implementation of distributed optical fiber sensing for monitoring ground movements prior to construction for site planning and during utility and tunnel construction and operation and the impact of such ground movements on existing utilities. 5.2 Before the installation of distributed optical fiber sensing begins, the contractor shall secure written explicit authorization from the owner/operator of the new tunnel/utility and the existing utilities allowing an evaluation to be conducted for the feasibility of distributed optical fiber sensing for monitoring ground movements for the intended purpose and to have access to certain locations of the structure and the surrounding ground. It may also be necessary for the installer to have written explicit authorization from applicable jurisdictional agencies such as the Department of Transportation, the Army Corps of Engineers, the Department of Environmental Protection and other. 5.3 Engineers, contractors, and owners/operators shall also be cognizant of how the use of distributed optical fiber sensing for monitoring ground movements around utilities and tunnels might interfere with the use of certain equipment or tools near the installed optical fiber sensing cable in some special situations. For example, repair activities may have to temporarily remove, relocate, or avoid the optical fiber cable. 5.4 Engineers, contractors, and owners/operators should be cognizant of how installation techniques and optical fiber (OF) cable location and protection can affect the performance of DOFSS.