Monday 22 May 2017

3.5 Lattice Girder Installation

  • Lattice girders are the supporting elements in tunnels and they normally consists of steel bars laced together in a triangular pattern.
  • They are made to suit the shape of the tunnel.
  • The main purpose of lattice girders is to provide temporary support to the rock which may fall readily.
  • The secondary purpose of lattice girders is to provide an indication if sufficient thickness of shotcrete is applied.
  • They also help in resisting tunnel deformations during rock bursts.
  • Lattice girders are not used in case of Rock Class 1, 2 and 3.
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2 comments:

  1. Scaffolding Accessories27 June 2019 at 11:12

    short but great information on lattice girder

    ReplyDelete
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