中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2014, Vol. 33 ›› Issue (1): 90-93.DOI: 10.3969/j.issn.1674-0696.2014.01.20

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基于桩·土作用效应的组合式抗滑桩结构研究

王羽1,柴贺军2,吴祖松1,刘丽1,王晓东1   

  1. 1. 重庆交通大学国际学院,重庆400074;2 招商局重庆交通科研设计院有限公司,重庆400067
  • 收稿日期:2012-10-13 修回日期:2013-03-12 出版日期:2014-02-15 发布日期:2015-01-22
  • 作者简介:王羽(1980一) ,男,重庆人,副教授,博士,主要从事工程地质与岩土工程方面的研究。E-mail :2884878@ qq. com
  • 基金资助:
    交通运输部建设科技项目(2013318814180) ;地质灾害防治与地质环境保护国家重点实验室开放基金资助项目(SKLGP20 1O KO lO )

Structure of Combined Anti-Sliding Piles ?ased on Pile-Soil Interaction

Wang Yu 1 , Chai Hejun2 , Wu Zusong1 , Liu Li1 ,Wang Xiaodong1   

  1. 1. School of International , Chongqing Jiaotong University , Chongqing 400074 , China; 2. China Merchants Chongqing Communications Research & Design Institute Co. Ltd. , Chongqing 400067 , China
  • Received:2012-10-13 Revised:2013-03-12 Online:2014-02-15 Published:2015-01-22

摘要: 在对现有双排桩计算分析研究的基础上,提出了一种新的考虑桩士作用效应的平面杆系有限单元门型桩分析 模型。此模型用弹簧来模拟受荷段土体作用,接触单元来模拟锚固段桩土间的协调变形,通过水平弹簧模拟桩间士 的薄压缩层,优化门架桩土压力分布状态,并将此计算模型应用于三峡库区一滑坡支护工程中,验证了该模型的合 理有效性。实例计算表明:所提出的计算分析模式是合理可靠的。

关键词: 门型抗滑桩, 支挡结构, 有限元法, 结构型式, 计算模型

Abstract: Aiming at the deficiencies of current portal anti-sliding piles , a new plane finite element model considering the pile-soil interaction was proposed based on the current model of calculating double-row piles. In this model , rings were used to simulate the influence of the loading soil and the touch elements were used to simulate the displacement between pile and soil in the anchored section. The part of soil between double-row piles was regarded as a thin compressible layer to optimize the stress distribution of the pile-soil. A case study relating the slide supporting engineering project in Three Gorges Reservoir was conducted for the model validation. And it shows that the proposed analysis mode and calculation model are reasonable and reliable.

Key words: portal anti -sliding pile, supporting structure, finite element method, structure form, calculation model

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