3-D numerical analysis of influence of layer modulus on structural responses of asphalt pavements

MAO Cheng; QIU Yan-jun

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MAO Cheng, QIU Yan-jun. 3-D numerical analysis of influence of layer modulus on structural responses of asphalt pavements[J]. Journal of Traffic and Transportation Engineering, 2003, 3(1): 35-39.

Citation:

MAO Cheng, QIU Yan-jun. 3-D numerical analysis of influence of layer modulus on structural responses of asphalt pavements[J]. Journal of Traffic and Transportation Engineering, 2003, 3(1): 35-39.

MAO Cheng, QIU Yan-jun. 3-D numerical analysis of influence of layer modulus on structural responses of asphalt pavements[J]. Journal of Traffic and Transportation Engineering, 2003, 3(1): 35-39.

Citation:

MAO Cheng, QIU Yan-jun. 3-D numerical analysis of influence of layer modulus on structural responses of asphalt pavements[J]. Journal of Traffic and Transportation Engineering, 2003, 3(1): 35-39.

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3-D numerical analysis of influence of layer modulus on structural responses of asphalt pavements

School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China

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Author Bio:
MAO Cheng(1973-), male, a doctoral student of Southwest Jiaotong University, engaged in research of integrated design theory of roadbed and pavement structure
Received Date: 2002-07-28
Publish Date: 2003-03-25

Abstract

Abstract

At present, influence of layer modulus on structural responses of asphalt pavements is analyzed using general Burmister theory. However, pavement responses under axle loading is three dimensional (3D) in nature. Using 3-D numerical simulation, this paper reports the impact of pavement structural module on pavement surface deflection, compressive stress and tensile stress at the bottom of surface and base respectively. The results indicate that the higher layer modulus are, the lower surface deflectiones, the higher base's module can result in great vertical compressive stress at asphalt layer, and the higher subgrade's module can result in lower tensile stress at the bottom of base. The analysis results have great value to design and construction of asphalt pavements.
- pavement mechanics,
- module,
- 3-D numerical analysis,
- surface deflection,
- stress

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References(12)

References

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