深圳宝鹏通道大发埔立交节点方案研究

Study on Node Scheme of Dafapu Interchange in Baopeng Channel of Shenzhen

城市新增快速路工程容易受到城区各种建设条件限制,尤其是立交节点,因其占地面积大,在工程建设中遇到的问题尤为突出。详细分析了深圳宝鹏通道大发埔立交节点的建设条件及规划立交方案,在尽量降低对相交道路影响的前提下提出了3种立交方案;从通行能力、工程造价、用地征拆、管线迁改等几个方面对3个方案进行综合比选,最终确定了最优设计方案;总结了城区复杂建设条件下的立交节点分析方法。

The construction of new urban expressways is easily limited by various construction conditions in the urban area, especially the interchange node. The problems existing in the engineering construction are particularly prominent due to the large floor area of node. The construction conditions and planned interchange scheme for the node of Dafapu Interchange in Baopeng Channel of Shenzhen are analyzed in detail. Three interchange schemes are proposed on the premise of minimizing the impact on the intersected roads. The three schemes are comprehensively compared from the aspects of traffic capacity, engineering cost, land acquisition and demolition, pipeline relocation and so on. Finally the optimal design scheme is determined, and the analysis method of interchange nodes under the complex urban construction conditions is summarized.