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Rutting Causes Analysis on Yi-Huai-Jiang Expressway
The Yi-Huai-Jiang Expressway is part of the main passage from Beijing to Shanghai. Serious rutting distresses have developed since it was opened. The causes of the rutting should be the key factor considered for treatment of the ruts. The causes of rutting on the Yi-Huai-Jiang Expressway are studied in this paper. First, typical sections with rutting distresses were selected. By comparing the thicknesses of core samples from each layer, the types of ruts and their occurring layers were determined. Secondly, the rutting-resistant properties of the core samples were evaluated by the Flow Number Test and compared between different sections. Third, traffic loads of each section were analyzed and compared. Finally, it was concluded that the poor rutting-resistant property of the middle layer, which is significantly affected by voids and the passing rate of 4.75mm sieve, results in flowing ruts in this layer in the Shanghai-Beijing direction. It was determined that overloading of the road was causing compacting ruts in the bottom layer in the Beijing-Shanghai direction.
Rutting Causes Analysis on Yi-Huai-Jiang Expressway
The Yi-Huai-Jiang Expressway is part of the main passage from Beijing to Shanghai. Serious rutting distresses have developed since it was opened. The causes of the rutting should be the key factor considered for treatment of the ruts. The causes of rutting on the Yi-Huai-Jiang Expressway are studied in this paper. First, typical sections with rutting distresses were selected. By comparing the thicknesses of core samples from each layer, the types of ruts and their occurring layers were determined. Secondly, the rutting-resistant properties of the core samples were evaluated by the Flow Number Test and compared between different sections. Third, traffic loads of each section were analyzed and compared. Finally, it was concluded that the poor rutting-resistant property of the middle layer, which is significantly affected by voids and the passing rate of 4.75mm sieve, results in flowing ruts in this layer in the Shanghai-Beijing direction. It was determined that overloading of the road was causing compacting ruts in the bottom layer in the Beijing-Shanghai direction.
Rutting Causes Analysis on Yi-Huai-Jiang Expressway
Li, Jian (author) / Ni, Fujian (author) / Ma, Xiang (author) / Ling, Cheng (author)
11th International Conference of Chinese Transportation Professionals (ICCTP) ; 2011 ; Nanjing, China
ICCTP 2011 ; 3585-3597
2011-07-26
Conference paper
Electronic Resource
English
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