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从具体的工程实例论述了互通立交规模研究的必要性和发展现状。从交通因素出发,分析了互通立交的设计交通量和通行能力、设计速度以及互通立交位置的选择对互通立交合理规模控制的影响;从安全因素出发,分析了互通立交总体结构和技术参数对互通立交合理规模控制的影响。根据各相关影响因素的分析,提出互通立交占地和工程造价2项指标作为互通立交规模评价指标。结合工程实践,从互通立交占地和工程造价2方面提出了控制互通立交合理规模的措施。
This paper discusses the necessity and current situation of the study on the scale of interchanges from the concrete engineering examples. Based on the factors of traffic, this paper analyzes the influence of design traffic volume, traffic capacity, design speed and the choice of location of intercommunication on the reasonable scale control of intercommunication. From the perspective of security, this paper analyzes the relationship between the overall structure and technical parameters of intercommunication. Influence of reasonable size control of overpass. According to the analysis of relevant factors, two indexes of land exchange and project cost are put forward as the evaluation index of scale of interchange. Combined with the engineering practice, this paper puts forward some measures to control the reasonable scale of cross-border interchanges from the aspects of interchange land and project cost.