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...

高速公路路基差异沉降标准

, PP. 16-21

Keywords: 道路工程,路基,沉降标准,有限元,差异沉降变化率,路表排水

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了合理确定高速公路路基差异沉降控制标准,应用有限元方法计算不同路基差异沉降下路面结构附加应力,并将计算结果与路面结构层材料极限抗拉强度对比,提出了基于防止路面破坏的路基容许差异沉降变化率计算式;基于水力水文学方法建立了公路路表集中排水模型,提出了基于路表排水的容许差异沉降变化率计算式;基于差异沉降对行车舒适性的影响,分析了人体对车辆垂直振动响应的敏感性,建立了国际平整度指数IRI与路基差异沉降的关系;综合以上因素,提出了高速公路路基差异沉降控制标准;最后以某高速公路为例应用本方法进行了计算。结果表明仅考虑差异沉降对行车舒适性的影响时,以差异沉降变化率0.1%作为沉降控制标准;考虑路面结构破坏和排水时,应根据公路具体设计参数计算确定差异沉降变化率,这能更客观准确地表征路基差异沉降标准。

References

[1]  单丽岩,侯相深,马松林.行车舒适性路面不平度评价标准[J].哈尔滨工业大学学报,2008,40(4):935-938. SHAN Li-yan,HOU Xiang-shen,MA Song-lin.Evaluation standard of pavement roughness based on ride comfort [J].Journal of Harbin Institute of Technology,2008,40(4):935-938.(in Chinese)
[2]  Liu W,Fwa T F,Zhao Z.Wavelet analysis and interpretation of road roughness[J].Journal of Transportation Engineering,2005,131(2):120-130.
[3]  JTG H20―2007,公路技术状况评定标准[S]. JTG H20―2007,Highway performance assessment standards[S].(in Chinese)
[4]  宋永刚,谭 英.基于Matlab分析的路面平整度控制方法[J].长安大学学报:自然科学版,2006,26(7):90-93. SONG Yong-gang,TAN Ying.Pavement roughness control method based on Matlab[J].Journal of Chang'an University:Natural Science Edition,2006,26(7):90-93.(in Chinese)
[5]  李志明.国际平整度指数与路面波长及波幅数值计算分析[J].交通与运输:学术版,2010(1):92-95. LI Zhi-ming.Numerical calculation of the relationship between international roughness index and pavement wavelength and wave amplitude[J].Traffic & Transportation:2010(1):92-95.(in Chinese)
[6]  唐 娴.路基沉降机理与超限沉降标准的研究[D].西安:长安大学,2003. TANG Xian.Research on settlement of embankment mechanism and the most differential settlement index value[D].Xi'an: Chang'an University,2003.(in Chinese)
[7]  傅 珍,王选仓,陈星光,等.拓宽道路工后差异沉降控制标准[J].长安大学学报:自然科学版,2008,28(5):10-13. FU Zhen,WANG Xuan-cang,CHEN Xing-guang,et al.Controlling criterion of differential settlements after widening expressway[J].Journal of Chang'an University:Natural Science Edition,2008,28(5):10-13.(in Chinese)
[8]  赵建伟.山区高速公路路基差异沉降数值分析[J].筑路机械与施工机械化,2010,27(9):39-41. ZHAO Jian-wei.Numerical analysis on differential settlement of highway subgrade in mountainous region[J].Road Machinery & Construction Mechanization,2010,27(9):39-41.(in Chinese)
[9]  JTG D30―2004,公路路基设计规范[S]. JTG D30―2004,Specifications for design of highway subgrade[S].(in Chinese)
[10]  邓卫东,张兴强.路基不均匀沉降对沥青路面受力变形影响的有限元分析[J].中国公路学报,2004,14(1):12-15. DENG Wei-dong,ZHANG Xing-qiang.Nonlinear FEM analysis of influence of asphalt pavement under non-homogenous settlement of roadbed[J].China Journal of Highway and Transport.2004,14(1):12-15.(in Chinese)
[11]  邓学钧.路基路面工程(第3版)[M].北京:人民交通出版社,2009. DENG Xue-jun.Roadbed and pavement project(Third edition)[M].Beijing:China Communication Press,2009.(in Chinese)
[12]  JTJ 018―97,公路排水设计规范[S]. JTJ 018―97,Specifications of drainage design for highways[S].(in Chinese)
[13]  JTG D50―2006,公路沥青路面设计规范[S]. JTG D50―2006,Specifications for design of highway asphalt pavement[S].(in Chinese)
[14]  JTG B01―2003,公路工程技术标准 [S]. JTG B01―2003,Technical standard of highway engineering[S].(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133