土工基础

›› 2016, Vol. 30 ›› Issue (1): 1-4.

• 工程实录 •    下一篇

保腾高速公路龙江特大桥选址方案论证研究

严 飞1,2，尹小涛3   

  1. （1.云南省交通规划设计研究院 陆地交通气象灾害防治技术国家工程实验室，昆明 650011；
    2.昆明理工大学，昆明 650093； 3.中国科学院武汉岩土力学研究所 岩土力学与工程国家重点试验室，武汉 430071）
  • 收稿日期:2014-12-25 出版日期:2016-02-20 发布日期:2016-03-02
  • 作者简介:严 飞（1981-），男，本科，工程师，研究方向为公路勘察设计。

Site Selection Considerations for the Longjiang Extra Long Bridge in Baoteng Highway

YAN Fei1,2, YIN Xiaotao3   

  1. （1.National Engineering Laboratory of Meteorological Hazard Prevention for Surface Transportation, Kunming 650011；
    2.Kunming University of Science and Technology, Kunming 650093；
    3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071
    ）
  • Received:2014-12-25 Online:2016-02-20 Published:2016-03-02
  • Supported by:

    基金项目:云南省交通科技项目云交科（2012-1-（B）05）

摘要： 桥梁的选址取决于工程边坡的稳定性和桥梁构筑物的稳定性，目前行业规范中还没有这方面明确的规定。针对保腾高速公路龙江特大桥腾冲岸岸坡稳定性问题，通过改变地形条件，考虑边坡的不同破坏模式，对其稳定性进行了综合评价，对原有方案进行了论证，建议方案后移40 m,无治理措施条件下可保证工程长期稳定性。提出考虑地形演替的桥梁选址方法可为公路桥梁选址工作提供指导。

关键词: 桥梁选址, 岸坡稳定性, 方案论证

Abstract: The site location selection of bridge depends on the stabilities of the abutment slopes and bridge structures, which are not clearly defined in current industrial standards or codes. This paper studied the stability of the abutment slopes for Longjiang bridge on highway from Baoshan to Tengchong by performing a comprehensive slope stability evaluation considering various terrain condition changes and slope failure modes. The proposed scheme of moving back bridge abutment 40 meters provides long term stability without requiring slope stabilization measures. The methodology used in this project will provide some guidance similar projects.

Key words: Site Selection for Bridges, Slope Stability for Bridge Abutments, Design Alternates, Recommended Bridge Site