Abstract
AbstractStage II of the 2,000 MW HPP Parbati in Himachal Pradesh, a northern district of India at the lesser Himalayan zone, will generate a total power of 800 MW. A Joint Venture of Jäger Bau GmbH (Austria) and Seli SpA (Italy) completed together with Gammon India Ltd. in December 2006 the first inclined shafts in India driven by a double shield tunnel boring machine. The two parallel 30° inclined underground pressure shafts of 1,500 m in length each have been lined by precast concrete segments simultaneously to the TBM heading. Especially the second shaft could be completed in a record of 109 working days respectively with an average daily production of almost 14 m/d! A steel lining with an inner diameter of 3.5 m is underway to be installed in the two shafts. That project might have set a milestone for the execution of inclined shafts – for sure in India but may be even in other countries as well. The paper describes the mechanical excavation of these two shafts under severe conditions in a remote area.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
