Study on the Causes of Highway Pavement Cracks in Desert Environment

Journal: Architecture Engineering and Science DOI: 10.32629/aes.v3i3.1048

Quanxin Chang1, Yongxiang Wu2, Honggang Wang3, Songshan Fan4

1. Ningxia Invest Engineering Construction Managemengt Company, Yinchuan 750011, China
2. Ningxia Highway Administration Center,Yinchuan 750011, China
3. CCCC Second Highway Engineering Bureau Co., Ltd, Xi’an 710065, China
4. Ningria Communications Construction Co., Ltd., Yinchuan 750002, China

Abstract

According to relevant statistics, more than 90% of domestic high-grade asphalt pavement is semi-rigid base pavement, and semi-rigid base cracking is a congenital stubborn disease and common. In Tengger Desert section of Wuma expressway, the temperature difference is large, and the cracking of temperature shrinkage and dry shrinkage is difficult to avoid, resulting in the decline of pavement structure strength. Once the semi-rigid base is cracked, the asphalt pavement is equivalent to a flexible structure; the residual fatigue strength is greatly reduced; the long-term service performance of pavement structure can not be guaranteed; the durability is poor, the damage layer is deep; the repair is difficult and the cycle is long; maintenance costs are relatively high. This paper analyzes the causes of pavement cracks in the harsh environment in the hinterland of Tengger Desert, and studies its mechanism and treatment scheme.

Keywords

desert pavement, cracks, strength

Funding

Ningxia Key Research and Development Program (2021BEG02017), Ningxia Transportation Department Science and Technology Project (202000173)

References

[1] Wang Jinguo, An Zhishan, Zhang Kecun, et al.Study on Aeolian Sand Transport in the Middle Wei section of Uma Expressway[J]. Research of Soil and Water Conservation,2021,28(6):183-189.
[2] Yin Wenhua, Wang Xu, Zhang Jizhou, et al.Experimental study on compaction characteristics and filling method of aeolian sand fillers for expressway in desert hinterland[J]. Journal of Railway Science and Engineering,2021,18(5):1177-1187.
[3] Yi Wenhua, Wang Xu, Zhang Yichen, et al.Design of desert geospatial database based on GIS[J]. Journal of Lanzhou Jiaotong University,2021,40(4):7-12,36.

Copyright © 2022 Quanxin Chang, Yongxiang Wu, Honggang Wang, Songshan Fan

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