Research on Influence of Construction Procedures  the Stability of Deep Foundation Pit by Software MIDAS

doi:10.3969/j.issn.1001-5485.2013.03.011

JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2013, Vol. 30 ›› Issue (3): 49-55.DOI: 10.3969/j.issn.1001-5485.2013.03.011

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Research on Influence of Construction Procedures the Stability of Deep Foundation Pit by Software MIDAS

LI Fang-cheng¹, GUO Li-na², HU Bin², JIANG Hai-fei², XU Hai-qing³

1. Central Southern China Electric Power Design Institute, Wuhan 430071, China; 2.Faculty of Engineering, China University of Geosciences, Wuhan 430074, China; 3. Wuhan Metro Ltd., Wuhan 430030, China

Received:2012-01-09 Revised:2012-06-08 Online:2013-03-01 Published:2013-03-26

Abstract

Abstract:

On the basis of hydrogeology data, Mohr-Coulomb constitutive model in software MIDAS was employed to simulate the deformation of deep foundation pit after each excavation step of different construction procedures. The influence of construction procedure on the stability of deep foundation pit was also analyzed. The deep foundation pit of Mingdu Station of Wuhan Metro was taken as a case study. Results show that the more accurate the construction process is, the smaller the deformation of the upper soil. Therefore, the construction steps must be rationally divided and arranged to ensure the project safety. The present research serve as an experience for the design and construction of foundation pit for Wuhan Metro.

Key words: MIDAS, deep foundation pit, construction procedure, analogue simulation , 

CLC Number:

TV223.3

LI Fang-cheng, GUO Li-na, HU Bin, JIANG Hai-fei, XU Hai-qing. Research on Influence of Construction Procedures the Stability of Deep Foundation Pit by Software MIDAS[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2013, 30(3): 49-55.

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Research on Influence of Construction Procedures the Stability of Deep Foundation Pit by Software MIDAS

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