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This chapter primarily conducted the finite element analysis of the dynamic response of soil around the tunnel under dynamic load induced by the subway train; the main work and conclusions are summarized as below:
This chapter analyzed the mechanism of the generation of dynamic load induced by subway train and simulated it by programming in ANSYS.
According to the field investigation and data from the boreholes, we developed a 3D finite element numerical model by inputting the relevant data.
For obtaining accurate results without too large computational domain, artificial boundary was applied to simulate the soil body in the discretization of this model.
The dynamic response of the soil in the model was consistent to the data obtained from the field test. And the results were proved effective and reliable.
According to the calculation results, σ z ′ propagates further in vertical direction, while σ x ′ propagates further in the horizontal direction. Furthermore, the influence range of the dynamic load was determined by this model.
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- Finite Element Modeling
- Springer Berlin Heidelberg
- Chapter 5