双排桩支护结构有限元模拟及优化设计分析
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摘要
针对当前城市基坑开挖场地狭窄、周边环境复杂,对深基坑的变形要求越来越严格这一特点,采用FLAC3D有限元软件对某一深基坑工程开挖和双排桩支护的过程进行了模拟和分析,并通过改变桩间距,前、后排桩的桩长对基坑水平变形和坑壁沉降量进行了优化设计。分析得出了基于基坑变形控制下的,桩间距和桩长的合理的设计取值.
Based on the large finite element software FLAC 3D,the whole process of double-row piles deep excavation engineering excavating and supporting was simulated and analyzed in response to the features of narrow engineering Foundation Pit,complex surrounding environment and stricter deformation of deep excavation.Horizontal Deformation of Foundation Pit and pit wall settlement were optimized through changing pile spacing and the length of front and back piles and the design values with reasonable pile spacing and pile length,based on the control of Foundation Pit deformation,were obtained.
引文
[1]龚晓南,高有潮.深基坑工程设计施工手册[M].北京中国建筑工业出版社,1998:187-188.
    [2]董必昌,邱红胜.双排桩对边坡稳定影响分析的仿真研究[J].武汉理工大学学报(交通科学与工程版),2007,31(3):502-505.
    [3]杨敏,卢俊义.上海地区深基坑周围地面沉降特点及预测研究[J].同济大学学报(自然科学版),2010,38(2):194-199.
    [4]陆新征,宋二祥,吉林.某特深基坑考虑支护结构与土体共同作用的三维有限元分析[J].岩土工程学报,2003,24(4):488-491.
    [5]刘继国,曾亚武.FLAC3D在深基坑开挖与支护数值模拟中的应用[J].岩土力学,2006,27(3):505-508.
    [6]彭文斌.FLAC3D实用教程[M].北京:机械工业出版社,2008.
    [7]秦四清,万林海,汤天鹏.深基坑工程优化设计[M].北京:地震出版社,1998:142-143.

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