ENGINEERING GEOLOGICAL STUDIES OF KOTLI BHEL PROJECT, STAGE-Il AT KAUDIYALA, UTTARAKHAND

Abstract

The current Dissertation report evaluates various Engineering Geological aspects of Kotlibhel Project Stage-TI at Kaudiyala in Tehri Garhwal district in Uttarakhand. The project envisages construction of 82 m high and 246 m long dam on river Ganga, a Run-off-the-River Scheme project for production of 530 MW of hydroelectricity. The construction of dam required various parameters to be evaluated with minute care so that the stability can be assured. In the present study the dam site and reservoir area has been Geologically studied and Maps (Section and Plan maps) were prepared on 1: 2000 scale showing variation in lithology and structural discontinuity. For sub surface geology sample obtained from drifts and drills are tested in lab. UCS. Brazilian test and other test were carried out to assess the strength of rocks. Further samples taken near dam site and reservoir has been pertrographically analysed. Kinematic and Stabilty analysis has also been carried out along rim of reservoir. Suitable measure has been also recommended for stability