中文核心期刊
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中国科技核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (6): 1021-1024.DOI: 10.3969/j.issn.1674-0696.2009.06.12

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柔性基层沥青路面结构设计参数分析

朱洪洲1,唐伯明1,刘伯莹2   

  1. 1.重庆交通大学,重庆400074;2.中交路桥技术有限公司,北京100029
  • 收稿日期:2009-07-10 出版日期:2009-12-15 发布日期:2015-04-15
  • 作者简介:朱洪洲(1976—),男,山东莱州人,副教授,博士,主要从事路基路面工程方面研究。E-mail:zhuhongzhouchina@126.com。
  • 基金资助:
    交通部西部交通科技项目( 2008 318 000 99)

Orthogonal?Analysis?on?Structure?Design?Parameters?of?Flexible?Base?Asphalt?Pavement

ZHU Hong-zhou1, TANG Bo-ming1, LIU Bo-ying2   

  1. ?1.?Chongqing?Jiaotong?University,?Chongqing?400074,?China;?2.?CCCC?Highway?＆?Bridge?Technology?Co.?Ltd,?Beijing?100029,?China
  • Received:2009-07-10 Online:2009-12-15 Published:2015-04-15

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摘要： 综合分析了国内外柔性基层沥青路面典型结构,采用正交分析方法,讨论了沥青稳定基层厚度、级配碎石基 层厚度及土基模量等关键结构参数对路表回弹弯沉、沥青层层底拉应力2个柔性基层沥青路面性能指标的影响。 研究表明:土基模量对于路表回弹弯沉的影响最为显著;当沥青层厚度在25cm以内时,增加沥青层厚度可以减小 沥青层底拉应力,延长沥青路面疲劳寿命。

关键词: 道路工程, 柔性基层沥青路面, 结构设计, 正交分析

Abstract: The?typical?structures?of?flexible?base?asphalt?pavement?at?home?and?abroad?are?comprehensively?analyzed.?The?effect?of?key?structure?parameters?on?two?performance?indicators?of?flexible?base?asphalt?pavement,?that?is?the?rebound?deflection?of?pavement?surface?and?the?pitch?stress?at?the?bottom?of?asphalt?layer,?is?studied?by?the?orthogonal?method.?These?key?structure?parameters?includes?the?depth?of?asphalt?treated?base?and?unbound?graded?aggregate?base,?the?module?of?subgrade?and?so?on.?The?results?show?that：the?module?of?sub-grade?has?important?influence?on?rebound?deflection?of?pavement?surface;?increasing?the?thickness?of?asphalt?layer?can?reduce?the?tensile?stress?at?the?bottom?of?asphalt?layer?and?prolong?the?fatigue?life?of?asphalt?pavement;however,the?thickness?of?asphalt?layer?has?little?effect?on?prolonging?the?fatigue?life?of?asphalt?pavement?when?the?total?thickness?of?asphalt?layer?exceeds?25cm

Key words: road engineering ;flexible base asphalt pavement , structure design , orthogonal analysis ;

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