›› 2007, Vol. 28 ›› Issue (S1): 343-347.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Numerical simulation of thermal stress for reflective crack of asphalt pavement

MIAO Yu1-3, WAN Yun-dong1,2, DONG Yu-kai4   

  1. 1. School of Civil Engineering and Mechanics, Huazhong University of Science & Technology, Wuhan 430074,China; 2. Hubei Key Laboratory of Control Structure, Huazhong University of Science & Technology, Wuhan 430074,China; 3. Key Lab of Geomechanics, Chinese Academy of Sciences, Wuhan 430071, China; 4. Luohe Highway Administration ,Luohe 462000, China
  • Received:2007-04-23 Online:2007-10-25 Published:2014-03-28

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Abstract: Based on theory of visco-elasticity and heat transfer, the stress of reflective crack under the thermal variation is studied by finite element simulation. The influence of variation stress fields and road design parameters on the thermal stress of the crack is discussed. It can be show that the surface stress near the crack is larger than the tensile strength of the asphalt, which leads to the crack propagation. The scheme of crack prevention, which uses the polyfibre geogrid, is put forward. Numerical results show that the validity of the present scheme.

Key words: asphalt pavements, reflective crack, thermal stress, finite element method

CLC Number: 

  • O 241
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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