潮汐作用下淤泥路基固结变形特性研究

›› 2009, Vol. 30 ›› Issue (4): 1142-1146.

• Numerical Analysis • Previous Articles Next Articles

Consolidation deformation properties of silt roadbed under effect of tide

XIANG Xian-chao¹，HOU Jian-shu¹，ZHU Chang-qi ²

1. Key Laboratory of Geological Hazard on Three Gorges Reservoir Area of Education, Ministry, China Three Gorges University, Yichang 443002, China； 2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

Received:2007-07-02 Online:2009-04-10 Published:2011-01-30

Abstract

Abstract:

Silt soft clay is widely distributed in littoral expressway foundation. Its consolidation is a popular geotechnical engineering issue. Seaside silt is always under periodical effect of wave and tide. Cofferdams and back berms are often built in the two sides of a roadbed for convenient construction, resulting in obstructing wave but letting tide come into the top of the silt roadbed through drainage layer, which have great influence on the consolidation process. A finite element model of plain strain sand-wall roadbed is established, in which the effect of back berms and tide is considered. The horizontal permeation coefficient of sand-drain roadbed is calculated from the field measurement data; and the corresponding horizontal permeation coefficient of sand-wall roadbed is ascertained. The calculation results show that the effect of tide and back berms on the consolidation process is obvious.

Key words: tide, silt roadbed, consolidation deformation

CLC Number:

TU 471.91

XIANG Xian-chao，HOU Jian-shu，ZHU Chang-qi. Consolidation deformation properties of silt roadbed under effect of tide[J]., 2009, 30(4): 1142-1146.

References

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