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...

永寿至咸阳高速公路咸阳机场立交静载试验

, PP. 45-52

Keywords: 桥梁工程,桩基,荷载传递,静载试验,实测数据处理,极限承载力

Full-Text   Cite this paper   Add to My Lib

Abstract:

结合永寿至咸阳高速公路咸阳机场立交试验区静载试验,研究了现场3根试桩浸水前后竖向受压的荷载传递性状,包括桩身轴力分布特征、桩侧摩阻力分布特征、桩侧摩阻力与桩端阻力的发挥性状以及极限承载力的确定,并对其进行了浸水前后对比分析.结果表明试桩桩周分布的黄土湿陷性小,浸水后的轴力分布规律与浸水前大体一致.在同级荷载作用下,浸水后的桩侧最大摩阻力普遍比浸水前小.浸水后桩侧摩阻力的发挥比浸水前小,相应的浸水后桩端阻力发挥比浸水前大.另外,从桩端荷载所占总荷载的百分比看,试桩显示出摩擦桩的特性.从竖向极限承载力的确定分析出,浸水后单桩竖向极限承载力比浸水前均降低2级,并提出了相应的处理措施.

References

[1]  张展弢.黄土地区单桩竖向承载力与沉降特性的研究[D].西安:西安理工大学,2003.ZHANG Zhantao.Research on Vertical Bearing Capacityand Settlement Property of Single Pile in Loess underAxial-load [D].Xi'an:Xi'an University of Technology,2003.
[2]  GB 50007—2002,建筑地基基础设计规范[S].GB 50007—2002,Code for Design of Building Foundation[S].
[3]  JGJ 106—2003,建筑基桩检测技术规范[S].JGJ 106—2003,Technical Code for Testing of BuildingFoundation Piles [S].
[4]  王晓谋.基础工程[M].4 版.北京:人民交通出版社,2003.WANG Xiaomou.Foundation Engineering [M].4th ed.Beijing:China Communications Press,2003.
[5]  张忠苗.桩基工程[M].北京:中国建筑工业出版社,2007.ZHANG Zhongmiao.Pile Foundation Projects [M].Beijing:Chinese Architecture Industry Press,2007.
[6]  JTG D63—2007,公路桥涵地基与基础设计规范[S].JTG D63—2007,Code for Design of Ground Base andFoundation of Highway Bridges and Culverts [S].
[7]  刘齐建.大直径桥梁基桩竖向承载力分析及试验研究[D].长沙:湖南大学,2003.LIU Qijian.Analysis and Experimental Research ofVertical Bearing Capacity of Large-diameter Bridge Pile[D].Changsha:Hunan University,2003.
[8]  章杰.黄土地基中钻孔灌注桩单桩承载性状的现场试验研究[D].西安:西安建筑科技大学,2003.ZHANG Jie.Research on Performance of Bearing Capacityof Single Bored Pile in Loess [D].Xi'an:Xi'anUniversity of Architecture and Technology,2003.
[9]  GB 50025—2004,湿陷性黄土地区建筑规范[S].GB 50025—2004, Code for Building Construction inCollapsible Loess Regions [S].
[10]  梁大伟.湿陷性黄土地区灌注桩竖向抗压浸水试验研究[J].山西建筑,2010,36(32):110-112.LIANG Dawei.Water Immersion Test Research of VerticalLoad of Bored Piles in Collapsible Loess [J].Journal ofShanxi Architecture,2010,36(32):110-112.
[11]  曾保刚,井原华.采用预浸水法处理自重湿陷性黄土地基[J].陕西建筑,2007(6):40-40.ZENG Baogang,JING Yuanhua.Presoaking Treatment ofWeight Collapsible Loess Foundation [J].Journal ofShaanxi Architecture,2007(6):40-40.
[12]  王富辉.湿陷性黄土地基浸水型病害勘察及加固处理[J].西部探矿工程,2012,24(3):19-20.WANG Fuhui.Immersion Diseases Survey andReinforcement of Collapsible Loess Subsoil [J].WestChina Exploration Engineering,2012,24(3):19-20.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133