The Numerical Analysis of Roadside Water Effects on Qinghai-Tibet Highway Sub-Grade Longitudinal Cracks

Abstract:

The change of moisture and temperature is the key factor that influences the permafrost roadbed stability. Based on Moisture-Heat control equation and permafrost sub-grade deformation control equation, the permafrost sub-grade model was established. Studies showed that roadside accumulated water had remarkable influences on deformation of sub-grade; Moisture infiltration contributed to the production of longitudinal crack, and the longitudinal cracks were likely to be developed at the roadside where the water was accumulated for the longer time , and the greater changing of longitudinal cracks were developed.

• Periodical: Applied Mechanics and Materials (Volumes 505-506)
• Pages: 168-173
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.505-506.168
• Online since: January 2014
• Authors: Nan Wang, Qing Meng Meng, Jin Feng Yang
• Keywords: Deformation Field, Moisture, Numerical Analysis, Seasonal Frozen Regions, Subgrade

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