Safe Working Practices - Safety in Construction of Underground Structures in the Complex Geology of Tehri Pump Storage Project – A Case Study

Dr. Rakesh Kumar Khali, Vice President - Operations, (Tunnel, UG Structures & Hydro Power), G.R. Infraprojects Ltd. highlights the technology incorporated for safety in construction during the course of the Tehri Pump Storage Project and cites examples that illustrate the efficacy of safety measures in averting accidents.

Safety is central to the construction of any mega project; it ensures executing projects without any mishap or loss of life. The construction of underground tunnels, shafts, chambers, and passageways is indispensable yet fraught with dangers. Reduced light conditions, difficult or limited access and egress, or possibility of being exposed to air contaminants and the hazards of fire and explosion are the threats an underground construction worker may face.

To ensure the safety and health of underground workers, the Occupational Safety and Health Administration has been made operational at the prestigious Tehri Pumped Storage Project (PSP). Safety operations are not limited only to the permanent structures and persons working on it, they extend to the infra-structure and its users as well.

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