合璧江高速公路九峰山段的陡坡挂线方案  

Study on Scheme of Route Design for Steep Slope in Jiufengshan Section of Hebijiang Expressway

作　　者：张伟[1] ZHANG Wei(China Railway First Survey and Design Institute Group Co. , Ltd. , Xi＇an 710000, Shaanxi, Chin)

机构地区：[1]中铁第一勘察设计院集团有限公司,陕西西安710000

出　　处：《筑路机械与施工机械化》2018年第8期55-59,共5页Road Machinery & Construction Mechanization

摘　　要：为了简化山区高速公路陡坡路段的方案设计工作,总结多年的工作实践,分析多种优化设计方案,梳理陡坡路段方案设计的影响因素,并根据影响程度或特殊要求将影响因素划分为主因和次因,根据主要因素确定设计原则,进行相应的多方案设计和比选。分析结果表明:影响设计方案的主要因素有方案的可行性、可靠性和经济性等,因此对于不良地质应首先避绕,在无法避绕或者投资过大时,再考虑采取防护或整治等措施;在完成陡坡挂线方案设计后,还应对重点段落进行安全性评价。In order to simplify the route design for steep slope sections of expressway in mountainous area,the influencing factors of the design were sorted out based on years of practice and the analysis of various optimized design schemes.The influencing factors were then divided into main factors and secondary factors.The design principles were determined by the main factors,based on which comparisons on the design schemes were carried out.The results show that the main factors affecting the design schemes include the feasibility,reliability and cost.Encircling should be avoided in unfavorable geology.When it is unavoidable or the investment is too large,measures for protection or treatment shall be applied.After completing the route design of the steep slope,the safety of key sections needs to be evaluated.

关 键 词：高速公路 陡坡挂线 优化设计 安全评价 

分 类 号：U412.36[交通运输工程—道路与铁道工程]