TAI Journal (A Half Yearly Technical Journal of Indian Chapter of TAI)
Year : 2017, Volume : 6, Issue : 2
First page : ( 5) Last page : ( 13)
Print ISSN : 2277-2820. Online ISSN : 2278-4713.

Construction of Tehri Pump Storage Project (4 x 250 MW) in Highly Adverse Geological Conditions - A Case Study

Khali Rakesh Kumar*, Dash Ashutosh**

*Group Project Manager, Hindustan Construction Company Ltd, Mumbai

**DPM Project Planning & Control, Hindustan Construction Company Ltd, Mumbai

Online published on 5 October, 2017.

Abstract

Tehri Pumped Storage Project (PSP) (4x250 MW), an integral part of the Tehri Hydro Power Complex (HPC) located in the state of Uttarakhand in northern India, is under construction by the Tehri Hydro Development Corporation (THDC) parallel and close to the existing 1000 MW Tehri Hydro Power Project, aims to harness the full potential of the river Bhagirathi. The major project components under construction are a machine hall, upstream surge shafts with chamber-3&4, Butterfly Valve Chamber (BVC) and upper Penstock Assembly Chamber (PAC), downstream surge shafts (D/S surge shafts), a pair of tail race tunnels (TRTs) and outlet structures. The contract for construction of Civil packages of this mega project has been awarded to M/s Hindustan Construction Co Limited on EPC mode. This paper describes the case study of problems faced and on the spot solutions adopted during construction of various structures viz power house, upper surge chamber-3 and 4, lower surge chamber, BVC and PAC and TRT works in highly adverse geological conditions, summarizing the experiences and challenges of working with the advance techniques with meticulous planning and effective safety measures.

Top