全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2012 

基于矩阵位移法的桩锚结构分析方法

DOI: 10.6052/j.issn.1000-4750.2010.11.0858, PP. 116-122

Keywords: 桩锚结构,开挖过程,弹性地基梁,矩阵位移法,Mindlin解

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用将桩锚结构视为荷载作用-侧向弹簧支承的连续梁模型,支护桩为直立的弹性地基梁,主动土体转换为土压力,锚杆简化成为可逐步施加的弹簧支承,而被动土体则用侧向支承的土体弹簧替代.土体弹簧的刚度K是通过半无限大弹性空间内部水平荷载作用下的Mindlin解来确定,这种方法降低了因深度加深而带来弹簧刚度的增长率,更加符合实际情况.针对这种弹性地基梁模型,提出了以矩阵分析为手段的计算方法,该法优点在于将桩锚视为桩-锚-土三者协同作用的支护结构,同时在计算过程中充分考虑了基坑分步开挖的施工过程对支护桩、锚杆以及被动土体的变形影响.通过实例分析表明:矩阵位移法为桩锚结构设计提供了一种合理、有效的计算方法.

References

[1]  刘国彬, 王卫东. 基坑工程手册[M]. 北京: 中国建筑 工业出版社, 2009: 147-148. Liu Guobin, Wang Weidong. Excavation engineering manual [M]. Beijing: China Architecture & Building Press, 2009: 147-148. (in Chinese)
[2]  J·E·鲍尔斯. 基础工程结构分析及程序[M]. 胡人礼, 等, 译. 北京: 中国铁道出版社, 1982: 101-107. Joseph E Bowles. Analytical and computer method in foundation engineering [M]. Translated by Hu Renli, et al. Beijing: China Railway Press, 1982: 101-107. (in Chinese)
[3]  赵其华, 彭社琴. 岩土支挡与锚固工程[M]. 成都: 四 川大学出版社, 2008: 135-137. Zhao Qihua, Peng Sheqin. Retaining and anchor engineering for rock & soil mass [M]. Chengdu: Sichuan University Press, 2008: 135-137. (in Chinese)
[4]  Mindlin R D. Force at a point in the interior of a semi-infinite solid [J]. Physics, 1936, 7(5): 195-202.
[5]  Poulos H G, Davis E H. Pile foundation analysis and design [M]. New York: John Wiley and Sons, Inc., 1980: 50-102.
[6]  胡琦, 凌道盛, 陈云敏. 基于Melan解的水平基床系数 分析方法及工程运用[J]. 岩土力学, 2009, 30(1): 33- 39. Hu Qi, Ling Daosheng, Chen Yunmin. Analytical method and engineering application of horizontal coefficients of subgrade reaction based on Melan's solution [J]. Rock and Soil Mechanics, 2009, 30(1): 33- 39. (in Chinese)
[7]  吴明. 深基坑工程若干土力学问题研究[D]. 杭州: 浙 江大学, 2009. Wu Ming. Study on some problems of soil mechanics in deep excavation engineering [D]. Hangzhou: Zhejiang University, 2009. (in Chinese)
[8]  龚耀清, 张正维. 半无限大弹性地基等效刚度公式及 其应用[J]. 工程力学, 2007, 24(5): 10-16. Gong Yaoqing, Zhang Zhengwei. Formulation of equivalent stiffness for semi-infinite elastic subgrade and its application [J]. Engineering Mechanics, 2007, 24(5): 10-16. (in Chinese)
[9]  肖宏彬, 王永和, 王星华. 多支撑挡土结构开挖过程 的有限元分析方法[J]. 岩土工程学报, 2004, 26(1): 47-51. Xiao Hongbin, Wang Yonghe, Wang Xinghua. Finite element of multi-brace retaining structure with consideration of the effect of staged excavation [J]. Chinese Journal of Geotechnical Engineering, 2004, 26(1): 47-51. (in Chinese)
[10]  约瑟夫·E·波勒斯. 基础工程分析与设计[M]. 童小东, 等, 译. 北京: 中国建筑工业出版社, 2004: 640-690. Joseph E Bowles. Foundation analysis and design [M]. Translated by Tong Xiaodong. Beijing: China Architecture & Building Press, 2004: 640-690. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133