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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): 1016-1020.DOI: 10.3969/j.issn.1674-0696.2009.06.11

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沥青混凝土路面开裂破坏的渗流模型分析

吴国雄1,丁王飞1,张??洋2,李??亮1   

  1. 1.重庆交通大学土木建筑学院,重庆400074;2.吉林省公路勘测设计院,吉林长春130021
  • 收稿日期:2009-01-04 修回日期:2009-09-12 出版日期:2009-12-15 发布日期:2015-04-15
  • 作者简介:吴国雄(1966—),男,湖北崇阳人,教授,博士生导师,主要从事道路与铁道工程教学、研究工作。E-mail:wgx_ph.d@163.com。
  • 基金资助:
    国家自然科学基金项目( 50778186)

Percolation?Model?of?Asphalt?Concrete?Pavement?Crack?Damage

WU Guo-xiong1, DiNG Wang-fei1, ZHANG Yang2, LI Liang1   

  1. 1?School?of?Civil?Engineering?＆?Architecture,?Chongqing?Jiaotong?University,?Chongqing?400074,?China?;??2.?Jilin?Provincial?Highway?Survey?＆?Design?Institute,Jilin?Changchun?130021?,China
  • Received:2009-01-04 Revised:2009-09-12 Online:2009-12-15 Published:2015-04-15

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摘要： 渗流模型是处理相变与临界现象的有力工具,在本质上属于概率论的一个分支。沥青混凝土路面的开裂破 坏是由于无数条微裂缝之间相互连通而导致的,其微裂缝无限连通的过程在数学上属于渗流问题。将渗流模型理 论应用于沥青混凝土路面破坏过程的描述,通过选择合适的渗流模型,对沥青混合料破坏的最近邻、次近邻和第三 近邻等3种状态的渗流演变过程进行了计算分析,用重整化群方法求出渗流阈值,用以确定沥青混凝土路面开裂 破坏的临界条件,为沥青混凝土路面破坏研究提供一种新的思路。

关键词: 沥青混凝土路面, 开裂破坏, 渗流模型, 重整化群, 渗流阈值

Abstract: Percolation?model?in?essence?belonging?to?a?branch?of?theory?of?probability?is?an?available?tool?to?deal?with?phase?transitions?and?critical?phenomena.?The?asphalt?concrete?pavement?appears?crack?damage,?because?numerous?micro-cracks?have?interaction.?The?limitless?connective?process?of?micro-cracks?belongs?to?percolation?problems?in?mathematics.?The?theory?of?percolation?is?applied?to?describing?the?destructive?process?of?asphalt?concrete?pavement,?and?then?the?appropriate?percolation?model?is?selected?out?to?analyze?and?compute?the?percolation?process?of?asphalt?concrete?pavement?cracking?under?nearest,?nearer,?and?third?neighbor?conditions.?The?method?of?renormalization?group?is?used?to?find?out?the?percolation?threshold?,which?can?determine?the?critical?condition?of?asphalt?concrete?pavement?crack.?The?proposed?model?provides?a?new?way?to?study?crack?damage?of?asphalt?concrete?pavement.

Key words: asphalt concrete pavement , crack damage , percolation model , renormalization group , percolation threshold ;

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