穿越建成区和水源保护区的快速路选线设计

Selection and Design of Expressway Line Passing through Built Area and Water Conservation Area

城市快速路道路选线会遇到城市建成区和水源保护区等环境敏感点,道路选线应尽可能从组团边缘或城区外围通过,避免对用地造成分隔,应采取措施力求将对环境造成的不利影响降到最低。以深圳市南坪快速路二期、三期工程为例,在对道路需求和功能、建设条件、控制因素进行分析的基础上,阐述了工程设计中针对道路穿越城市建成区和一级水源保护区所采取的对策。

The selection of urban expressway line will meet the environmental sensitive spots of urban built areas and water conservation areas.The selection of road line should be as far as possible from the edge of group and the periphery of urban area.The land is avoided to divide.The measures should be taken to minimize the adverse impact on the environment.Taking Shenzhen Nanping Expressway Phase Ⅱ and Phase Ⅲ Project as an example,on the basis of analyzing the road demand,functions,construction conditions and control factors,the countermeasures taken for road passing through the urban built area and Class I water conservation area in the engineering design are expounded.