NDLI: Design and construction of cast in-situ steel fibre reinforced concrete headrace tunnels for the Neelum Jhelum Hydroelectric project

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Design and construction of cast in-situ steel fibre reinforced concrete headrace tunnels for the Neelum Jhelum Hydroelectric project

Content Provider	Scilit
Author	Ashcroft, B. Peach, G. Mierzejewski, J. Rivaz, B. De Yerlikaya, M.
Copyright Year	2019
Description	Twin 10 km long parallel headrace tunnels were excavated as part of the headrace tunnel system for the Neelum Jhelum Hydroelectric Project, using two Tunnel Boring Machines (TBMs). The permanent support normally comprised a shotcrete lining applied over initial support elements. However, concrete lining was required in certain areas of extremely poor ground conditions. Once placement of conventionally reinforced concrete commenced, it was found to be taking longer than anticipated, prompting a search for alternative solutions. Steel Fibre Reinforced Concrete (SFRC) proved to be the most viable option for accelerating the concrete lining programme. This paper briefly outlines the requirement for a concrete lining in the aforementioned areas. It includes an assessment of the suitability of a conventionally reinforced concrete lining versus an SFRC lining, the design basis, and the actual design itself. A comparison of the costs and durations to install the two types of lining is also presented. Book Name: Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9780429424441-176&type=chapterpdf
Ending Page	1677
Page Count	11
Starting Page	1667
DOI	10.1201/9780429424441-176
Language	English
Publisher	Informa UK Limited
Publisher Date	2019-04-17
Access Restriction	Open
Subject Keyword	Book Name: Tunnels and Underground Cities: Engineering and Innovation Meet Archaeology, Architecture and Art Criminology and Penology Chemical Engineering Reinforced Concrete Tunnels Neelum Hydroelectric Jhelum Headrace Steel Viable
Content Type	Text
Resource Type	Chapter

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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