Analyses of Earth Pressure on Gridding Concrete Retaining Wall in the Excavation of Deep Foundation Pit in Soft Soil Area

Guang Zhu Zhou; Xu Wei; Chen Yu

doi:10.4028/www.scientific.net/AMM.52-54.2181

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 52-54Analyses of Earth Pressure on Gridding Concrete...

Analyses of Earth Pressure on Gridding Concrete Retaining Wall in the Excavation of Deep Foundation Pit in Soft Soil Area

Abstract:

This paper is mainly to study earth pressure on Gcrw used as a new kind of supporting structures in the excavation of deep foundation pits in soft soil region. On the basis of the simulation of step by step excavation by using big finite element software Abaqus/CAE and considering three-dimension elastoplastic stress state, the characteristics of different earth pressure are systematically discussed upon practical engineering. By comparing simulation results with calculated results based on calculation formula of Rankine Theory, it can be seen that the earth pressure in active zone is different from theoretic active earth pressure and earth pressure at rest while walls and soil in the gridding are regarded as a whole, which is greater than the former and somewhere similar to the latter, the earth pressure in passive zone is bigger than theoretic value of passive earth pressure, it is the tensive force from partition wall that prevent the front wall from overturning. These conclusions will be helpful for design and construction of new retaining wall.

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Periodical:

Applied Mechanics and Materials (Volumes 52-54)

Pages:

2181-2186

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.52-54.2181

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Online since:

March 2011

Authors:

Guang Zhu Zhou, Xu Wei, Chen Yu

Keywords:

Deep Foundation Pit, Earth Pressure, Excavation, Gridding Concrete Retaining Wall (Gcrw), Simulation, Soft Soil

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References

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