ASTM F3079-14 (R2020) PDF Download

ASTM F3079-14 (R2020) is a standard practice that provides guidance for the use of distributed optical fiber sensing systems to monitor the impact of ground movements during tunnel and utility construction on existing underground utilities. The purpose of this practice is to assist engineers, contractors, and owner/operators in successfully implementing distributed optical fiber sensing for monitoring ground movements.

Before the installation of distributed optical fiber sensing systems, the contractor must obtain explicit written authorization from the owner/operator of the new tunnel/utility and the existing utilities, as well as from relevant jurisdictional agencies. This authorization allows for the evaluation of the feasibility of using distributed optical fiber sensing, access to certain locations of the structure and surrounding ground, and compliance with regulations.

Engineers, contractors, and owner/operators must consider potential interference with equipment or tools near the installed optical fiber sensing cable. In some cases, repair activities may require temporary removal, relocation, or avoidance of the optical fiber cable. It is important to be aware of installation techniques and the location and protection of the optical fiber cable to ensure the performance of the distributed optical fiber sensing system.

This standard practice applies to the selection of suitable materials, design, installation, data collection, data processing, and reporting of results. It is applicable to all utilities that transport water, sewage, oil, gas, chemicals, electric power, communications, and mass media content. Additionally, it applies to tunnels that transport and store water or sewage, as well as tunnels used for hydropower, traffic, rail, freight, capsule transport, and storage.