Finite element modelling of vertical drains beneath embankments on soft ground
Finite element modelling of vertical drains beneath embankments on soft ground
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DOI:
10.1680/geot.1992.42.3.499
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发表时间:
1992-09
期刊:
影响因子:
5.8
通讯作者:
C. Hird;I. Pyrah;D. Russell
中科院分区:
文献类型:
--
作者:
C. Hird;I. Pyrah;D. Russell
A methodology is described for modelling vertical drains in plane strain finite element analyses of embankments on soft ground. This includes the use of a suitably formulated drainage element to represent each drain. Criteria for matching the effect of a single drain in axisymmetric and plane strain analyses are developed on the basis of a widely accepted theory. Matching can be achieved by adjusting the geometry (drain spacing) and/or the permeability of the soil. The finite element analysis and matching procedure are validated by comparison with theoretical results; the effects of both finite drain permeability (well resistance) and smear are modelled satisfactorily. Une methode est deacute;acute;crite pour simuler des drains verticaux dans une analyse aux elements finis a deformations planes de remblais sur sols mous. Ceci inclut l'utilisation d'un element de drainage formule de facon adequate pour representer chaque drain. Des criteres pour representer l'effet d'un drain unique dans les analyses axisy...