The study of road deformation induced by ground fissure in Xi’an, Central China,Arabian Journal of Geosciences

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The study of road deformation induced by ground fissure in Xi’an, Central China
Arabian Journal of Geosciences Pub Date : 2020-07-24 , DOI: 10.1007/s12517-020-05716-w
Wen Fan , Xianglin Peng , Longsheng Deng , Chengcheng Jiang

Tremendous losses and threaten traffic safety were caused by ground fissures as it covers over half of the area of Xi’an, in China. This study summarizes the formation of ground fissures and found that variations in the dip angles and cross angles influence road deformation and cracking. Based on survey data, numerical simulation using MSC.MARC finite element software was conducted to analyze the impact of ground fissures on roads. The results show that the cross angle has a negative correlation with the deformation range and a positive correlation with the tensile and compressive stresses, plastic strain and shear stress. The dip angle has a negative correlation with the maximum tensile stress and plastic strain and a positive correlation with the vertical displacement of pavement, but it has little effect on the maximum compressive stress. It is recommended to take some engineering measures for prevention and treatment when road projects cross a ground fissure, such as avoiding ground fissures, changing the road structure, and establishing a monitoring system. These conclusions can serve as a reference for structural design and preventative measures for roads passing through active ground fissure zones.

更新日期：2020-07-24

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