以海南省琼台大道工程为例分析山区市政道路设计要点
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摘要
以海南省琼台大道工程设计为例,提出位于山区市政道路总体设计和路基设计要点。对于建设用地段,为保证非机动车行驶舒适,纵坡按非机动车道最大纵坡2.5%控制;对于农业用地段,主线坡度按机动车道5%控制;服务于农业交通的辅道按非机动车道最大纵坡2.5%控制。山区市政道路路基设计可分为高填路堤、陡坡路堤、低填浅挖路基、填挖交界路基、软土路基、桥涵台背路基等6种类型。所总结的经验以期供类似工程借鉴。
Taking Qiongtai Ave. design project in Hainan as an example, the main points of the overall design and subgrade design of the municipal roads in the mountainous area are proposed. For the construction land, in order to ensure the comfort of non-motorized vehicles, the vertical slope shall be controlled by 2.5% of the maximum longitudinal gradient of non-motorized lanes; for agricultural land, the slope of the main line shall be controlled by 5% of the motor lanes; the auxiliary roads serving agricultural traffic shall be non-motorized.The maximum longitudinal gradient of 2.5% is controlled. The design of urban road subgrade in mountainous areas can be divided into six types:high-filled embankment, steep slope embankment,low-filled shallow excavation subgrade, subgradefilled excavation subgrade, soft soil roadbed, and bridge-supported subgrade. The lessons learned are expected to be used for similar projects.
Taking Qiongtai Ave. design project in Hainan as an example, the main points of the overall design and subgrade design of the municipal roads in the mountainous area are proposed. For the construction land, in order to ensure the comfort of non-motorized vehicles, the vertical slope shall be controlled by 2.5% of the maximum longitudinal gradient of non-motorized lanes; for agricultural land, the slope of the main line shall be controlled by 5% of the motor lanes; the auxiliary roads serving agricultural traffic shall be non-motorized.The maximum longitudinal gradient of 2.5% is controlled. The design of urban road subgrade in mountainous areas can be divided into six types:high-filled embankment, steep slope embankment,low-filled shallow excavation subgrade, subgradefilled excavation subgrade, soft soil roadbed, and bridge-supported subgrade. The lessons learned are expected to be used for similar projects.
引文
[1]冯江.山区河谷地形城市道路设计体会[J].城市道桥与防洪,2014(07):3-6.
[2]李昶.山区工业园主干道路设计要点浅议——以昌国东路为例[J].城市道桥与防洪,2015(11):12-13.
[3]周茂.山区道路选线及相关环节分析[J].科技创新与应用,2013(26):195.
[4]邓学钧.路基路面工程[M].3版.北京:人民交通出版社,2008.
[2]李昶.山区工业园主干道路设计要点浅议——以昌国东路为例[J].城市道桥与防洪,2015(11):12-13.
[3]周茂.山区道路选线及相关环节分析[J].科技创新与应用,2013(26):195.
[4]邓学钧.路基路面工程[M].3版.北京:人民交通出版社,2008.