Analytical solution to interaction between pipelines and soils under arbitrary loads
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摘要: 针对城市地下管线由于开挖引起的管土相互作用，给出了一种适用于描述任意位移荷载条件下管线的解析解公式，可以适用于城市隧道、基坑或其他形式的开挖引起的不同形式地层位移对城市地下管线应力变形影响的模拟。采用建议解答，对由于隧道开挖引起地下管线应力变形进行分析，并和采用管土相互作用单元的ABAQUS有限元分析程序计算结果进行了比较，结果验证了本文解析方法的可靠性。Abstract: A kind of closed-form analytical solution to the interaction between pipelines and soils induced by nearby excavation process is presented. It is suitable for describing any kinds of displacement profile caused by various excavation processes, including tunnels, trenches and many other excavation projects. As the typical application, the effects on pipelines of ground settlement induced by tunneling are evaluated by the proposed analytical solutions and computer techniques. The analytical results are compared with finite element method solutions based on ABAQUS PSI elements, which are proved to be effective and convenient to describe the interaction between pipelines and nearby soils. There is very good agreement between the suggested closed-form solution and FEM results. The efficiency of the proposed closed-form analytical solution is validated.
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Keywords:
- pipeline /
- arbitrary load /
- interaction /
- excavation
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