Dynamic soil-tunnel interaction in layered half-space for incident P-and SV-waves |
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| Authors: | Jia Fu Jianwen Liang Lin Qin |
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| Affiliation: | 1.Department of Civil Engineering, Tianjin University2.Tianjin Key Laboratory of Civil Engineering Structures & New Materials, Tianjin 300072, China |
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| Abstract: | The dynamic soil-tunnel interaction is studied by the model of a rigid tunnel embedded in layered half-space,which is simplified as a single soil layer on elastic bedrock to the excitation of P- and SV-waves.The indirect boundary element method is used,combined with the Green's function of distributed loads acting on inclined lines.It is shown that the dynamic characteristics of soil-tunnel interaction in layered half-space are different much from that in homogeneous half-space,and that the mechanism of soil-tunnel interaction is also different much from that of soil-foundation-superstructure interaction.For oblique incidence,the tunnel response for in-plane incident SV-waves is completely different from that for incident SH-waves,while the tunnel response for vertically incident SV-wave is very similar to that of vertically incident SH-wave. |
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| Keywords: | Underground tunnel Layered half-space Pwave and SV-wave Indirect boundary element method Soil-tunnel interaction Site dynamic characteristics |
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