Test Method of the Mechanical Response Based on the Pavement Structure Model
周兴业1, 唐皓2, 梁冬冬2, 霍心蕊3, 王显赫4
1. Fundamental Research Innovation Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China;
2. China Road & Bridge Corporation, Beijing 100011, China;
3. China First Highway Engineering Company LTD, Beijing 100024, China;
4. China Highway(Beijing) Engineering Materials Technology Co., Beijing 100088, China
Test Method of the Mechanical Response Based on the Pavement Structure Model
ZHOU Xing-ye1, TANG Hao2, LIANG Dong-dong2, HUO Xin-rui3, WANG Xian-he4
1. Fundamental Research Innovation Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China;
2. China Road & Bridge Corporation, Beijing 100011, China;
3. China First Highway Engineering Company LTD, Beijing 100024, China;
4. China Highway(Beijing) Engineering Materials Technology Co., Beijing 100088, China
摘要Corresponding experiments were designed and accomplished to obtain the authentic mechanical response mechanism of pavement under different loading conditions. Replicability and reproducibility of the experiments were discussed in this paper. Meanwhile, the response mechanism for three typical pavement structures was analyzed. Results show that mechanical response test method for pavement structure has characteristics of good replicability, reproducibility, and reliability. The method can also be used as an effective way to investigate the mechanical response of pavement structures. The mechanical states of different pavement materials under the same test condition are quite different. For cement bound granular and asphalt concrete, radial strain changes as alternative compression-tension with obvious mechanical response characteristic. However, the situation is different for cement concrete. The region of pavement that is close to the surface is in compressive state. By contrast, the far region is in tensile state. Top-down cracking of pavement developed from top surface crack may appear when load is too heavy. The working state of pavement can be reflected by utilizing the mechanical response test method. The mechanical response test method is a good reference when calculating mechanical state and determining parameters of pavement material.
Abstract：Corresponding experiments were designed and accomplished to obtain the authentic mechanical response mechanism of pavement under different loading conditions. Replicability and reproducibility of the experiments were discussed in this paper. Meanwhile, the response mechanism for three typical pavement structures was analyzed. Results show that mechanical response test method for pavement structure has characteristics of good replicability, reproducibility, and reliability. The method can also be used as an effective way to investigate the mechanical response of pavement structures. The mechanical states of different pavement materials under the same test condition are quite different. For cement bound granular and asphalt concrete, radial strain changes as alternative compression-tension with obvious mechanical response characteristic. However, the situation is different for cement concrete. The region of pavement that is close to the surface is in compressive state. By contrast, the far region is in tensile state. Top-down cracking of pavement developed from top surface crack may appear when load is too heavy. The working state of pavement can be reflected by utilizing the mechanical response test method. The mechanical response test method is a good reference when calculating mechanical state and determining parameters of pavement material.
周兴业, 唐皓, 梁冬冬, 霍心蕊, 王显赫. Test Method of the Mechanical Response Based on the Pavement Structure Model[J]. Journal of Highway and Transportation Research and Development, 2020, 14(1): 1-9.
ZHOU Xing-ye, TANG Hao, LIANG Dong-dong, HUO Xin-rui, WANG Xian-he. Test Method of the Mechanical Response Based on the Pavement Structure Model. Journal of Highway and Transportation Research and Development, 2020, 14(1): 1-9.
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2020, Vol. 14 
