VISHNUGAD-PIPALKOTI TBM ACCEPTANCE

摘要

Factory acceptance for the TBM bound for the 444MW Vishnugad-Pipalkoti hydropower project took place last month. The 9.86m-diameter Terratec hard rock double shield TBM will excavate the 13km of tunnels for the project, which is located in the estate of Uttarakhand, around 500km northeast of Delhi. Working for main contractor HCC, Seli Overseas will handle the tunnelling which passes through Dolomitic Limestone along one third of the drive and slates along two thirds of the drive. A 150m section of low overburden, five shear zones and three fault zones are known challenges.