| 孙建生.软基底板外伸式涵洞衬砌结构的有限元分析[J].水利学报,2000,31(10):0056-0061 |
| 软基底板外伸式涵洞衬砌结构的有限元分析 |
| FEM analysis of culvert liner with extended bottom plate laid on soft foundation |
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| DOI： |
| 中文关键词: 涵洞衬砌 填土压力 非线性有限元 |
| 英文关键词: culvert liner extended bottom plate earth-fill pressure nonlinear FEMculvert liner extended bottom plate earth-fill pressure nonlinear FEM |
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| 中文摘要: |
| 本文采用填筑土体应力应变非线性双曲线模型，提出模拟涵洞施工分层填筑加载过程及填筑土体与衬砌结构联合作用的有限元分析方法，得出软基底板外伸式大型涵洞衬砌结构内力及衬砌周边填筑土体压力、开挖基面上边荷载的分布规律。计算成果已为实际工程设计采用。 |
| 英文摘要: |
| Based on the nonlinear hyperbolic model for load-deformation of earth filling, the finite element analysis method for simulation the earth filling load increments in the process of construction and the interaction between soil and liner is proposed. The internal stress and earth filling pressure acting on culvert liner with extended bottom plate laid on soft foundation as well as the edge load distribution on the excavation base are determined. |
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