土工基础

土工基础 ›› 2020, Vol. 34 ›› Issue (5): 533-536.

• 工程实录 •    下一篇

高速公路拓宽路堑高边坡支护方案优化设计及稳定性研究

余颂莉1，张 鼎2,3，张云毅2,3，卢 伟4，杨 仙4，张可能2,3   

  1. （1.湖南省怀芷高速公路建设限公司，湖南怀化 418000；2.有色金属成矿预测与地质环境监测教育部重点实验室，长沙 410083；3.中南大学地球科学与信息物理学院，长沙 410083；4.湖南科技大学资源环境与安全工程学院，湖南湘潭 411201） 
  • 收稿日期:2019-11-13 修回日期:2019-11-25 出版日期:2020-10-20 发布日期:2020-11-02
  • 作者简介:余颂莉（1978-），女，工程师，研究方向为岩土工程。

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

摘要： 随着社会的快速发展，某些老旧高速公路仍是双向四车道，无法满足出行要求，需要对原道路进行拓宽。对于紧邻边坡的高速公路拓宽工程，需要选择合适的方案，在保证边坡开挖稳定性的前提下，同时减少对高速公路运营的影响。以湖南怀化某一高速公路拓宽工程为例，此工程在对道路进行拓宽的同时还需对边坡进行支护，因此需要对紧邻高耸边坡支护进行方案比选，在考虑多方因素后选择出最优方案，通过数值模拟分析，对支护方案进行稳定性计算，以期为类似的工程项目提供参考。

关键词: 公路拓宽, 边坡支护, 优化设计

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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