Numerical prediction of long-term settlements over tunnels in clay

Abstract : The long-term settlements over tunnels can be rather significant, particularly when tunnels are embedded in soft and compressible soils. The long-term settlement can be predicted based on the stress-strain-time relationship of soft clay using multiple-step FEM. The influence of drainage condition of tunnel linings on the evolution of long-term surface settlement, as well as ground loss, are simulated with the multiple-step numerical procedure, and some conclusions are drawn from the numerical simulations. Finally, a case study is also performed and a satisfaction agreement between the predicted long-term settlement and the observed one is obtained.
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Tunnelling and Underground Space Technology, Elsevier, 2004, 19 (4 5), pp.379-386. 〈10.1016/j.tust.2004.02.009〉
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Dong-Mei Zhang, Hong-Wei Huang, Pierre Yves Hicher. Numerical prediction of long-term settlements over tunnels in clay. Tunnelling and Underground Space Technology, Elsevier, 2004, 19 (4 5), pp.379-386. 〈10.1016/j.tust.2004.02.009〉. 〈hal-01007126〉

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