Influence Analysis of Pit Foundation Precipitation to Adjoining Raft Foundation

Zong Jun Sun; Xiao Bin Liu; Yan Kai Wu; Qian Chao Luan

doi:10.4028/www.scientific.net/AMR.261-263.1206

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 261-263Influence Analysis of Pit Foundation Precipitation...

Influence Analysis of Pit Foundation Precipitation to Adjoining Raft Foundation

Abstract:

Pit foundation excavation leads both settlement and uneven settlement in the building foundation. It has settlement cracks in masonry and concrete structure; these damages lie on the basis of the instability in neighboring buildings. In this paper, by the use of FLAC3D, it establish three-dimensional numerical analysis mode of interaction between foundation pit excavation and raft foundation, the change patterns of the soil deformation, pore water pressure and the uneven settlements of raft foundation are analyzed. The results indicate that the maximum value of the raft foundation settlement appears on the maximum pit free surface on the foundation pit, and the lesser value of the raft foundation settlement is away from the foundation pit, these indicate that the laws of the uneven settlement.

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Periodical:

Advanced Materials Research (Volumes 261-263)

Pages:

1206-1209

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.261-263.1206

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Online since:

May 2011

Authors:

Zong Jun Sun, Xiao Bin Liu, Yan Kai Wu, Qian Chao Luan

Keywords:

FLAC-3D, Pit Foundation Excavation, Raft Foundation, Stress Analysis, Uneven Settlement

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