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Large rectangular cross-section tunnel undercrossing urban road by micro pipe jacking and joint assembly structure (MPJ & JAS) method in soft soils.
Sci Rep
March 2024
Laboratoire de Genie Civil et Go-Environnement (LGCgE), Universit Lille1, 59650, Villeneuve dAscq, France.
Article Synopsis
- Urban development is creating more "dead end roads," necessitating a trenchless method for building undercrossing tunnels in shallow soil conditions.
- The proposed MPJ & JAS method allows for the construction of large cross-section tunnels from smaller components, featuring benefits like low cost and flexible design.
- Extensive tests and analyses confirmed the structural reliability of the MPJ & JAS tunnels, leading to a theoretical design method that predicts bending strength with high accuracy, while also developing advanced construction techniques for efficiency.