收稿日期: 2012-01-09
修回日期: 2012-06-08
网络出版日期: 2013-03-26
基金资助
国家自然科学基金面上项目(41172281);国家科技部973项目(2011CB710604);中国博士后基金特殊项目(中博基[2009]13);中央高校基本科研业务费专项资金项目(摇篮人才计划CUGL100413)
Research on Influence of Construction Procedures the Stability of Deep Foundation Pit by Software MIDAS
Received date: 2012-01-09
Revised date: 2012-06-08
Online published: 2013-03-26
李方成 , 郭利娜 , 胡斌 , 蒋海飞 , 徐海清 . 基于MIDAS软件探讨施工工序对深基坑稳定性的影响[J]. 长江科学院院报, 2013 , 30(3) : 49 -55 . DOI: 10.3969/j.issn.1001-5485.2013.03.011
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
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