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) ›› 2017, Vol. 36 ›› Issue (3): 48-53.DOI: 10.3969/j.issn.1674-0696.2017.03.08

• 道路与铁道工程 • 上一篇    下一篇

路基压实度与振动轮加速度的关系研究

马丽英,梁乃兴,曹源文,归少雄,樊文胜,樊友伟   

  1. (1.重庆交通大学 机电与车辆工程学院,重庆 400074;2.重庆交通大学 土木工程学院,重庆 400074; 3.江西省高速集团抚吉项目办,江西 南昌 330025;4.江西交通咨询公司,江西 南昌 330008)
  • 收稿日期:2015-09-13 修回日期:2016-05-21 出版日期:2017-03-20 发布日期:2017-03-24
  • 作者简介:马丽英(1973—),女,河北卢龙人,副教授,博士研究生,主要从事道路工程施工技术及施工机械方面的研究。 E-mail:mlygsx@163.com。
  • 基金资助:
    安徽省交通厅科技项目(2013SSLMJK);江西省交通厅重点科技项目(2012C0019)

Comparison on Performance of CRP/SBS Modified Asphalts and CRP/SBS Modified Asphalt Mixtures

YANG Xiwu, FANG Yuliang, LIU Ke   

  1. (1.School of Mechatronics & Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,P.R.China; 2.School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,P.R.China; 3.Fuzhou-Ji’an Project Office,Jiangxi Expressway Group,Nanchang 330025,Jiangxi,P.R.China; 4.Jiangxi Traffic Consulting Company,Nanchang 330008,Jiangxi,P.R.China)
  • Received:2015-09-13 Revised:2016-05-21 Online:2017-03-20 Published:2017-03-24

摘要: 为了实现路基压实度在线监测以提高压实作业效率,研究了振动压路机与路基土之间的动力学关系,建立了路基振动压实系统动力学模型;分析了用振动轮垂直加速度有效值表示路基压实度的技术和方法。研究表明:垂直振动加速度与路基土的刚度正相关,与其阻尼负相关。现场试验得到了路基土的压实度与振动轮垂直加速度有效值之间的回归公式和相关系数,并提出了路基压实度在线监测系统的设计方案。

关键词: 道路工程, 路基压实度, 振动轮加速度有效值, 振动压实系统模型, 在线监测系统

Abstract: In order to realize the on-line monitoring of roadbed compaction to improve the compaction efficiency,the dynamics relationship between vibration roller and the roadbed soil was researched and the dynamics model for roadbed vibration compaction system was established.The technology and method which used vertical vibration acceleration RMS of roller to express the compaction degree of roadbed was analyzed.The research indicates that: the vertical vibration acceleration of roller is positively correlated with the subgrade’s stiffness and negatively correlated with the damping.Through the field test,the regression formula and the correlation coefficient between the compaction degree of subgrade soil and the vertical acceleration RMS of roller were obtained,and the design scheme of the on-line monitoring system for subgrade compactness was also put forward.

Key words: highway engineering, compaction degree of roadbed, vibration acceleration RMS of drum, model of vibration compaction system, online monitoring system

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