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Home » Case studies » Gas Pipeline Leak & Accidental Excavation Detection within Densely Populated Urban Areas – Singapore

Gas Pipeline Leak & Accidental Excavation Detection within Densely Populated Urban Areas – Singapore

Published on January 27 2021
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Image Gas Pipeline Leak & Accidental Excavation Detection within Densely Populated Urban Areas – Singapore

Most of Singapore’s gas pipes are laid underground. With a lot of ongoing road repair and resurfacing works, low-, medium- and high-pressure gas pipes are vulnerable to damage caused by activities such as soil investigation, excavation, boring/tunnelling, building demolition, addition and alteration work, as well as major renovation.

Pipelines transporting gas at high pressure are made of high-strength steel with anti-corrosion coating. These are mostly buried underground and further protected by concrete slabs.

To prevent damage to underground gas pipes and resulting gas leaks, SOFOTEC – a leading Solution Provider in SHM using Fibre Optic Sensors in Singapore – and Smartec, successfully delivered a preventive and safety system to detect leakages and excavation/earthworks over ca. 7 km of downtown gas pipelines. Two fiber optic cables were laid together with the pipe respectively affixed onto the pipe to detect gas leaks and above the concrete slabs to detect and localize accidental excavations. In the event of a gas leak and/or accidental excavation, the Smartec automatic system will promptly shut the relevant gas valves to isolate the leak and prevent further build-up of gas.

Pipeline laying on the side of the road in Singapore downtown

Pipeline laying on the side of the road in Singapore downtown

FO cable laying in dug trench.

FO cable laying in dug trench

FO cable affixed onto the pipe.

FO cable affixed onto the pipe

FO cable laying above concrete slabs.

FO cable laying above concrete slabs

Outdoor cabinet with DTS equipment.

Outdoor cabinet with DTS equipment

Pipe preparing for FO cable installation.

Pipe preparing for FO cable installation

Trench backfilling.

Trench backfilling

Related Applications

Pipeline

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Logo Roctest

Developer and Manufacturer of Geotechnical & Structural Instruments and Soil/Rock Testing Equipment

Logo Smartec

Provider of innovative Fiber Optic Solutions for Structural Health Monitoring and Geotechnical Instrumentation

Logo Telemac

Provider of Geotechnical & Structural Instruments
since 1947

Logo Enomfra

Provider of Hydrogeological & Geotechnical Services. Investigations, Monitoring & Testing

Logo Roctest

Developer and Manufacturer of Geotechnical & Structural Instruments and Soil/Rock Testing Equipment

Logo Smartec

Provider of innovative Fiber Optic Solutions for Structural Health Monitoring and Geotechnical Instrumentation

Logo Telemac

Provider of Geotechnical & Structural Instruments
since 1947

Logo Enomfra

Provider of Hydrogeological & Geotechnical Services. Investigations, Monitoring & Testing

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