我国城市道路透水路面建设的工程选址与类型选择分析

Analysis on choice of engineering site and type in Chinese urban pervious pavement construction

针对当前我国城市道路透水路面建设选址与选型不当的问题,从工程应用角度剖析了各类透水路面的水流路径与铺面材料,从透水路面与路基相匹配的角度,探究了我国透水路面建设的工程选址与类型选择方法.结果表明:不同水流路径的透水路面功能及对地基要求不同,透水路面砖、透水水泥混凝土、透水沥青混合料等3类透水路面材料在孔隙率、强度、常见病害、维护与维修方法上存在差异;地质条件决定地基建设透水路面的适宜性与排水路径选型;降雨、温度等气候条件影响透水路面的工程选址与类型选择;人文、交通条件决定不同城市功能区域与透水路面类型的关联性;工程条件影响透水路面选型等;提出了从地质、气候、人文、交通、工程等5方面综合考察的透水路面工程选址与类型选择实用方法.

Aiming at problem of inappropriate choice of engineering site and type of urban pervious pavement in China, this paper introduced flow paths and pavement materials of various pervious pavements for engineering application, and analyzed the method for dealing with the above problems from the point of pervious pavement and subgrade match.The results showed that the functions and ground requirements of various pervious pavements were different;three kinds of pervious pavement materials, pervious pavement brick, pervious concrete and pervious asphalt, were different in their porosity,strength, common diseases,and methods of maintenance and repairing;geological conditions determined foundation suitability for constructing pervious pavement and its flow path;climatic conditions such as rainfall and temperature affected the choice of its engineering site and type;human and traffic conditions determined the relevancies between urban function regions and previous pavement types;engineering conditions affected the type choice of previous pavement. Based on these,the practical methods for choosing engineering cite and type of previous pavement,which considered conditions of geology,climate,humanity,transportation and engineering comprehensively, were put forward.