Analysis on the Tunnel in the Filling Karst Under Complicated Geological Conditions by 3D Finite Element Method
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摘要: 采用三维弹塑性有限元法,对某隧道DK278+628—+698段填充性岩溶软基加固后的效果进行了分析。分析过程中,采用Drucker-Prager模型及刚-柔接触模型,模拟了加固前后隧道填充性岩溶的应力、位移及应变情况,根据分析结果,对工程起到了很好的指导作用。Abstract: The filling karst raft roadbed reinforcement of the tunnel bottom in DK278 + 628- + 698 section of a railway is analyzed by three dimensional elasto-plastic contact finite element method. The Drucker-Prager model and elastic-plasstic contact model is used in simulating the stress, deformation and strain of the tunnel. And the resuh has guiding significance on the engineering.
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