跨断层埋地管线有限元建模方法研究
摘要
回顾了跨断层埋地管线几种计算模型,提出了一种埋地管线有限元分析模型,将土体和管道作为一个整体的力学模型来研究。采用三维非线性接触单元(Goodman接触单元)来模拟管道与土体之间的相互作用,管道采用四节点薄壳单元,土体采用三维实体单元,同时给出了位错量的输入模型。通过算例分析,与其它经典模型进行了比较,结果说明了本文模型的可行性。
引文
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[2]Goodman R E,Taylor R L,Berkke T L.A model for the mechanics ofjointed rock[J].ASCE,1968,94(3):637-659.
[3]Bandis S C.Mechanical properties of rock joints Rotterdam[J].Barton&Stephansson,1990,125-140.
[4]Bandis S C,Lumsden A C,Barton N R.Fundamentals of rock jointdeformation[J].International Journal of Rock Mechanics and MiningSciences&Geomechanics Abstracts,1983,20(6):249-268.
[5]Clough G W,Duncan J M.Finite element analysis of retaining wallbehavior[J].Journal of the Soil Mechanics and Foundations Division,1971,94(12):1657-1673.
[6]林均岐,胡明,申选召.跨越断层埋地管线地震反应数值分析[J].地震工程与工程振动,2006,26(3):186-192.
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