[1]Li Zuzhong,Chen Jiaofa,Hua Min.Analysis of the influence of sampave layer thickness on the internal forces of asphalt structural layer[J].Journal of Zhengzhou University (Engineering Science),2007,28(04):92-95.[doi:10.3969/j.issn.1671-6833.2007.04.023]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
28卷
Number of periods:
2007年04期
Page number:
92-95
Column:
Public date:
1900-01-01
- Title:
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Analysis of the influence of sampave layer thickness on the internal forces of asphalt structural layer
- Author(s):
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Li Zuzhong; Chen Jiaofa; Hua Min
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- Keywords:
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road works; stress absorbing layer; thickness; finite element method; reflective cracks; Add layers
- CLC:
-
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- DOI:
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10.3969/j.issn.1671-6833.2007.04.023
- Abstract:
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The three-dimensional finite element method was used to analyze the influence of the thickness change of Sampave stress absorbing layer on the load stress and temperature stress distribution of asphalt plus pavement structure, and it was found that Sampave stress absorbing layer can greatly reduce the load stress and temperature stress at the bottom of the pavement, which has a particularly obvious effect on the latter, improves the stress state of the entire asphalt surface structure, reduces the stress concentration degree of the bottom of the pavement, delays the formation of reflective cracks in the paving layer, and shows its unique role in anti-reflective cracks. The calculation results show that the stress absorbing layer should not be too thick, and the recommended layer thickness is 2.5±0.5 cm.