Study on Drainage Design System of Highway Engineering in Urbanization Area
In order to solve the problem that the cost is generally high but the drainage effect is not ideal in the drainage design of highway projects in urban areas,in this paper,the main characteristics of the drainage design of highway projects in urban areas is summarized on the basis of previous studies;the drainage design ideas and zoning standards for highway projects in urbanization areas is formulated according to the urbanization level of different sections,section importance positioning,long-term planning and use cycle of roadside facilities,land occupation type.the system is studied based on a first-class urbanization highway project in Xi'an.First of all,different subgrade sections are determined according to the different development degree of the region where each road section is located,and corresponding drainage design for each section is carried out.Then the design of main drainage facilities is analyzed.The research results show that it is reasonable and effective to carry out drainage design for roads in urban areas with the requirements of development zones,areas to be developed and undeveloped areas.It not only meets the drainage requirements of highway projects,but also combines with long-term urban planning to reduce the waste of resources demolition as much as possible,taking into account the dual needs of roads and municipal functions,and solving the problem of traditional road drainage design in urban areas.
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