波浪对软粘土软化作用的计算方法及离心模型试验研究

作者：闫澍旺 冯守中

单位：天津大学!天津 300072 中港三航局!上海 200032

关键词：软粘土  软化作用  离心模型试验  计算方法

分类号：TU431

出版年,卷(期):页码：1998,22(3):6-9

摘要：

由于在波浪等往复荷载作用下，沿海地表的软粘土层受到扰动，强度降低了，使原稳定于其上的港工和海工结构物产生很大的附加沉降，甚至失稳破坏。本文提出了一种比较简便的估算软化区的分析方法，并与离心模型试验方法进行了比较，计算结果与试验观测值较为接近。

Under the action of the repeat load caused by waves, etc., a soft clay layer on theground surface along the coast area is disturbed, thus resulting strength decrease, an additionalsignificant settlement on the original stable ground where port and marine structures wereestablished, and even an unstable slope occured. This paper provides a relatively easy analysismethod to evaluate a softened area and then make a comparison with a centrifugal model testmethod. The calculation results are approaching to the values observed in the test.

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参考文献：

1K.Ishihara,A.Yamazaki.Analysis of wave—inducedliquefaction in seabed deposits of sand.Soils andFoundations,1984;24(3):85～100. 2K.L.Lee,J.A.Focht.Liquefaction potential at EkofiskTank in North Sea.J.Geoth.Eng.Div.,ASCE,1975;101(GT1):1～18. 3Y.Maeno,K.Uchida.Centrifuge simulation ofsettlement of Armur Block,Proc.of Inter.Conf.onGeo.Eng.for Coastal Development,1991:597～602. 4M.S.Rahman,W.Y.Jaeer.A simplified drainedanalysis for wave—induced liquefaction in ocean floorsands.Soils and Foundations,1986;26(3):57～68. 5Y.Umehara,K.Zen,Y.Oguro.Model test of abreakwater on wave induced liquefaction.Proc.of 14thAnnual Meeting of JSSMFE(in Japanese),1979:1317～1320.

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