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Developments in the Use of Steel Fibre Reinforced Concrete (SFRC) in Precast Segments for Tunnel Linings


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Author J Greenhalgh, C Roberts and J Brown


The scope of this paper is to recount the development of segmental linings
used in tunnel construction, starting with its inception as an improvement to
the brick-lined tunnel approach of Brunel in England and moving through the
history and development to the present day, before finishing with a few insights
into what the future might hold.

The paper also discusses the motivation for the relatively recent move
towards replacing conventional steel reinforcing cages with steel fibres and the
reasons why steel fibre reinforced concrete (SFRC) is rapidly becoming the
material of choice for manufacturing precast concrete segmental