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) ›› 2008, Vol. 27 ›› Issue (3): 405-407.

• • 上一篇    下一篇

水泥混凝土路面开裂机理探讨

占宏1,2, 邓蕾蕾1,2   

  1. 1. 重庆交通大学, 重庆 400074;
    2. 中国市政工程西南设计研究院, 四川 成都 610081
  • 收稿日期:2007-04-14 修回日期:2007-09-07 出版日期:2008-06-20 发布日期:2016-11-14
  • 作者简介:占宏(1976-),男,福建厦门人,工程师,主要从事道路设计与给排水设计。E-mail:zanhg@vip.sina.com。

Research on Crack Mechanism of Portland Cement Concrete Pavements

ZHAN Hong1,2, DENG Lei-lei1,2   

  1. 1. Chongqing Jiaotong University, Chongqing 400074, China;
    2. Southwest Municipal Engineering Design & Research Institute of China, Sichuan Chengdu 610081, China
  • Received:2007-04-14 Revised:2007-09-07 Online:2008-06-20 Published:2016-11-14

摘要: 运用损伤力学的基本原理探讨了水泥混凝土路面的开裂机理和破坏过程,在此基础上分析出了车辆荷载反复作用下路面的累积损伤加剧,断裂韧度降低。随着裂缝深度的逐渐增加,荷载在裂缝尖端造成的应力强度因子也越来越大,最终达到水泥混凝土路面失稳时的开裂韧度,路面板随即发生断裂破坏。

关键词: 水泥混凝土, 路面, 开裂机理, 断裂韧度

Abstract: The crack principle and destruction process are researched by applying the principium of breakage mechanics.The breakage cumulation of portland cement concrete pavement slabs is increased and the rupture temper is decreased under the vehicle load reiterative action of reiterative.With the gradual increase of crack depth,the gene of stress strength caused by the load on the top of the crack will become larger and larger.The pavements slab will rupture when the crack temper makes the portland cement concrete pavements unsteady.

Key words: portland cement concrete, pavement slabs, crack mechanism, rupture temper

中图分类号: