特殊地形隧道口附近枢纽互通式立交方案设计

发布时间：2018-02-25 18:54

本文关键词： 高速公路互通式立交复杂条件方案研究　出处：《铁道工程学报》2014年12期 　论文类型：期刊论文

【摘要】：研究目的:在隧道口附近的枢纽互通式立交方案规模大,造价高。本文通过实例互通式立交项目进行各种方案的研究,分析其通道、走廊以及平、纵断面和集中、分点设置的可行方案,为复杂条件下隧道口附近的立交方案设计开阔一条思路,以供高等级公路勘察设计与施工参考。研究结论:(1)在隧道口附近的枢纽互通式立交设计时应重点把握主要控制因素,避免遗漏重大方案;(2)深入调查研究和分析论证,首先结合既有控制物选择主线平面位置方案;(3)合理调整主线纵断面高程,以确定互通范围的高程;(4)对比集中设置互通方案与分点设置互通方案的工程比选;(5)最后通过点位互通的多种型式的工程认真筛选,不断优化,设计出安全、功能完善、规模恰当、同时与环境相融合的最佳方案;(6)本研究成果能够为复杂条件下隧道口附近的高速公路的立交方案设计提供指导作用。
[Abstract]:Research purpose: the project of hub interchange near the tunnel entrance is large in scale and high in cost. The feasible scheme of dividing point setting is designed to open a way of thinking for the interchange scheme near the tunnel entrance under complex conditions. This paper provides a reference for the investigation, design and construction of high grade highway. Conclusion: 1) in the design of junction interchange near the tunnel entrance, we should focus on the main control factors, avoid omitting the major scheme and make further investigation, analysis and argumentation. First of all, combining with the existing control object selection of the main line plane position scheme, the main line vertical section elevation is adjusted reasonably. In order to determine the scope of interworking, the project of setting up interworking plan and setting up interworking plan at different points are compared with each other. Finally, through the careful screening of various types of engineering of interworking at point level, the design of safety and function is improved. The results of this study can provide guidance for the design of the interchange scheme of the expressway near the tunnel entrance under complex conditions.
【作者单位】：中铁二院工程集团有限责任公司;
【分类号】：U412.352.1

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