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...

框架式抗滑桩受力特性对比分析

, PP. 56-59

Keywords: 道路工程,框架式抗滑桩:数值模拟,受力特性,模型试验,桩-土共同作用

Full-Text   Cite this paper   Add to My Lib

Abstract:

?为探究大型滑坡治理中框架式抗滑桩的受力机理,采用ANSYS有限元计算及模型试验方法,对比分析了框架式双排抗滑桩的内力和变形特征。建立了能反映框架式双排抗滑桩空间效应的有限元模型,并运用相似理论构造了室内试验模型,对比分析了数值模拟和室内模型试验结果。结果表明:模型试验与数值模拟结果总体趋于一致;前、后排桩身弯矩存在反弯点,其最大值出现在滑动面处,后排桩起到主要的抗滑作用;纵向框架梁的最大弯矩值在桩、梁交接处,横向框架梁对抗滑桩起到了很好的变形协调作用,在以边桩为拱脚处表现出明显的土拱效应;对比分析验证了框架式抗滑桩具有土拱-桩-梁空间协同受力特性及变形规律。

References

[1]  徐良德,项 瑛,尹道成,等.排架桩与双排单桩的对比模型试验[C]//《滑坡文集》编委会.滑坡文集:第6集.北京:中国铁道出版社,1988:78-83.
[2]  朱俊高,周喜武.抗滑桩极限阻力的有限元分析[J].岩土力学,2004, 25(增2):301-305.
[3]  ZHU Jun-gao,ZHOU Xi-wu.Analysis of Ultimate Resistance of Anti-slide Pile Using FEM[J].Rock and Soil Mechanics,2004,25(S2):301-305.
[4]  周翠英,刘祚秋,尚 伟,等.门架式双排抗滑桩设计计算新模式[J].岩土力学,2005,26(3):441-444,449.
[5]  钱同辉,唐辉明.双排门式抗滑桩的空间计算模型[J].岩土力学,2009,30(4):1137-1141.
[6]  QIAN Tong-hui,TANG Hui-ming.Spatial Calculation Model for Portal Double Row Anti-slide Piles[J].Rock and Soil Mechanics,2009,30(4):1137-1141.
[7]  钱同辉,夏文才,朝泽刚,等.考虑空间协同作用框架式抗滑桩的计算方法[J].地球科学——中国地质大学学报,2011,36(6):1143-1148.
[8]  QIAN Tong-hui,XIA Wen-cai,CHEN Fang,et al.Model Experimental Research on Anti-sliding Characteristics of the Frame Anti-sliding Piles[J].Applied Mechanics and Materials,2011,90-93:584-587.
[9]  XU Lian-de,XIANG Ying,YIN Dao-cheng,et al.Model Test Comparison on Row Piles and Double-row Single Pile[C]//Editorial Board for Collected Papers on Landslide.Collected Papers on Landslide:Vol.6.Beijing:China Railway Publishing House,1988:78-83.
[10]  刘 钊.双排支护桩结构的分析及试验研究[J].岩土工程学报,1992,14(5):76-80.
[11]  LIU Zhao.Test Study and Structure Analysis of Retaining Piles[J].Chinese Journal of Geotechnical Engineering,1992,14(5):76-80.
[12]  熊治文,马 辉,朱海东.全埋式双排抗滑桩的受力分布[J].路基工程,2002(3):5-11.
[13]  XIONG Zhi-wen,MA Hui,ZHU Hai-dong.Force Distribution of Deeply Buried Anti-slide Piles[J].Subgrade Engineering,2002(3):5-11.
[14]  张建华,谢 强,张照秀.抗滑桩结构的土拱效应及其数值模拟[J].岩石力学与工程学报,2004,23(4):699-703.
[15]  ZHANG Jian-hua,XIE Qiang,ZHANG Zhao-xiu.Arching Effect of Anti-slide Pile Structure and Its Numerical Stimulation[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(4):699-703.
[16]  周应华.门架式双排桩受力位移特性分析[J].铁道工程学报,2009(6):30-33.
[17]  ZHOU Ying-hua.Analysis of Distribution Characteristics of Stress and Displacement of Portal Double-row Pile[J].Journal of Railway Engineering Society,2009(6):30-33.
[18]  ZHOU Cui-ying,LIU Zuo-qiu,SHANG Wei,et al.A New Mode for Calculation of Portal Double Row Anti-sliding Piles[J].Rock and Soil Mechanics,2005,26(3):441-444,449.
[19]  QIAN Tong-hui,XIA Wen-cai,CHAO Ze-gang,et al.A Calculation Approach for Frame Anti-sliding Piles[J].Earth Science-Journal of China University of Geosciences,2011,36(6):1143-1148.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133