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| Numerical analysis of RC shield tunnel lining |
| Revised:July 14, 2003 |
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| DOI：10.7511/jslx20054086 |
| KeyWord:shield tunneling construction,lining structure,numerical analysis,three-dimensional FE model |
| JU Yang~ |
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| Abstract: |
| Connectiong to the actual shield tunneling construction of metro, the paper tends to use 3D finite element model and ANSYS code to analyze the stess and strain distributions and crack rule of RC shield tunnel lining. By taking the soil around the tunnel as a part of the FE numerical model, the interaction between lining and soils as well as the elastoplasticity of soils and steel reinforced concrete were considered in this model. The rigidity reduction model of the segment joint was put forward in the paper and the influence of the segment joint to the stress, strain and crack rule of tunnel lining was quantitatively analyzed as well. |
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