| 深大基坑环梁支护结构特性的有限元分析 |
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| 引用本文： | 冯龙飞,杨小平.深大基坑环梁支护结构特性的有限元分析[J].汕头大学学报(自然科学版),2014(2):67-72,80. |
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| 作者姓名： | 冯龙飞 杨小平 |
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| 作者单位： | [1]华南理工大学土木与交通学院,广东广州510640 [2]亚热带建筑科学国家重点实验室,广东广州510640 |
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| 摘 要： | 环形拱梁支护结构以受力性能合理、挖土工期短,基坑变形时效控制显著等诸多优点而广泛应用于大面积深基坑工程.以中山市某圆环支撑深基坑工程为背景,基于连续介质有限元法,对环梁支护体系的结构特性进行了系统的三维数值模拟分析,主要研究了环梁刚度、直径、地下连续墙厚度及土体弹性模量对支护结构变形及内力的影响,得出了一些有益的结论,可为今后类似工程设计提供参考.
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| 关 键 词： | 深基坑 圆环支撑 数值分析 变形 内力 |
Finite Element Analysis on Structure Properties of Deep and Large Foundation Pit with Arch Brace Supporting System |
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| FENG Longfei,YANG Xiaoping.Finite Element Analysis on Structure Properties of Deep and Large Foundation Pit with Arch Brace Supporting System[J].Journal of Shantou University(Natural Science Edition),2014(2):67-72,80. |
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| Authors: | FENG Longfei YANG Xiaoping |
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| Institution: | 1. School of Civil Engineering and Transportation, Soulh China University of Technology, Guangzhou 510640 Guangdong, China; 2. State Key Laboratory of Subtropical Building Science, Guangzhou 510640, Guangdong, China) |
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| Abstract: | An arch brace supporting structure has many significant advantages, such as force reasonable performance, short duration of excavators, pit deformation aging control and so on. It is widely used in large-scale deep excavation. A ring support deep foundation pit project of Zhongshan was taken as the background. The structure characteristics of the ring beam supporting system of three-dimensional numerical simulation analysis was studied based on the continuum finite element method. The research is mainly focused on the ring beam stiffness, diameter, wall thickness to even and soil elastic modulus supporting structure deformation and internal force of the impact. Some useful conclusions are drawn to provide a reference for the future similar projects design. |
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| Keywords: | deep foundation pit ring support numerical analysis deformation internalforce |
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