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本文针对郑民高速公路祥云寺枢纽互通式立交的原设计方案特点,在保证功能、最大限度的利用现有工程、降低造价的3个优化原则下,根据转向交通流分布情况以及地形特点和地物分布情况,拟定了3个优化方案,并对3个方案的主线及匝道纵坡线型、匝道总长度、匝道桥总长度及面积、互通占地等工程量和建安费投资进行比较,最后通过综合比较确定了合理的设计方案。
In this paper, according to the characteristics of the original design plan of the interchange of Xiangyun Temple at Zhengmin Expressway, under the three optimization principles of guaranteeing function, utilizing the existing engineering to the greatest extent and reducing the cost, according to the distribution of the steering traffic flow and the characteristics of terrain The distribution of materials, the development of three optimization programs, and the main line of the three programs and ramp longitudinal slope type, the total length of the ramp, the total length and area of the ramp bridge, interoperability of land-based engineering and construction investment costs were compared, and finally Through a comprehensive comparison to determine a reasonable design.