Soil Engineering and Foundation

Soil Engineering and Foundation ›› 2020, Vol. 34 ›› Issue (5): 533-536.

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Optimization Design and Stability Analysis of Supporting Measures for Widened High Embankment Slope of Expressway

YU Songli1, ZHANG Ding2,3, ZHANG Yunyi2,3, LU Wei4, YANG Xian4 ， ZHANG Keneng2,3   

  1. (1.Huaizhi Expressway Construction Co. Ltd., Huaihua 418000;
    2.Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, School of Geoscience and Infophysics, Central South University, Changsha 410083;
    3.School of Geoscience and Infophysics, Central South University, Changsha 410083;
    4.College of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201)
  • Received:2019-11-13 Revised:2019-11-25 Online:2020-10-20 Published:2020-11-02

Abstract: With the rapid development of the society, there is an increasing demand for ground transportations. In some area, the existing two-way four traffic lanes could not meet requirements of the traveling public. This paper presents a case history of widening the existing expressway in Huaihua, Hunan Province, with focus on minimizing the adverse impact on the traffic flow by ensuring the stability of cut slopes. Since the cut slope support was necessary for the proposed widening, the different slope stability supporting measures were compared and the most effective option was selected throughout the optimization. Numerical analysis was also performed on the selected slope stability supporting measure.

Key words: Expressway Widening, Slope Stability Support, Optimization Design

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