Tweet Share

• Send by email

  Send by email

  

  Developing a simple spring interface modelling technique for a composite lining bond interface

  Recent research shows that the use of a Mohr-Coulomb strain softening constitutive model can represent the load sharing behaviour in a composite tunnel lining where the waterproofing membrane produces a composite action between the primary and secondary linings (Pillai et.al., 2017). The use of a Mohr-Coulomb model requires finite element analysis with the use of a very fine mesh to model the <5mm thick bond layer geometry. This paper presents the concept and results of an attempt to develop a simple approximate design tool using commercial structural analysis software that mainly deals with linear-elastic beam elements. The Mohr-Coulomb parameters found in the laboratory testing presented by Pillai et.al. (2017) are replicated in a beam-spring model and the results calibrated to the laboratory test and finite element analyses results. Composite lining, Beam spring model, sprayed waterproofing.

  Recipient :

  Name ^* :

  E-mail address ^* :

  ^* Required fields

  Send   or  Cancel

• Print