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n Journal of the South African Institution of Civil Engineering = Joernaal van die Suid-Afrikaanse Instituut van Siviele Ingenieurswese - Design and construction of the transfer tunnel : Lesotho Highlands Water Project

Volume 40, Issue 1
  • ISSN : 1021-2019
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Abstract

This paper describes the design and construction of the 45km long, 4, 35m diameter transfer tunnel on phase 1A of the Lesotho Highlands water project. The tunnel transfers water from the new Katse reservoir to the new underground hydro-electric power station at 'Muela in Lesotho. It was driven entirely through basaltic rock using three 5, 03m diameter TBMs and then lined with 300mm in situconcrete. The project also included a 98m high reinforced concrete intake tower in the Katse reservoir and five raise-bored ventilation shafts up to 299m deep.

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/content/civileng/40/1/EJC26838
1998-01-01
2016-12-09

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