Study On Some Main Problems Of Reconstruction And Extension Of Urban Peripheral Expressway

With the rapid development of social economy,industrial division of labor in the urban space division more and more refined,the connection between different regions become increasingly close,some of the highway capacity and technical standards of some of the terms have been unable to meet and adapt Modern traffic demand,traffic capacity and traffic demand is becoming increasingly difficult to adapt,this contradiction in the city around the highway is particularly prominent.The rapid development of urbanization,the continuous expansion of urban population,resulting in the expansion of the main urban area,the construction of the early highway around the rural or suburbs gradually transformed into urban areas,the public expectations of the highway function is also higher and higher,not only hope that the highway to provide Fast transit services,and support for land development on both sides of the route.Therefore,how to better solve the urban surrounding expressway in the expansion of the functional requirements encountered diverse,technical specifications imperfect problems,is the main challenge facing highway builders.Based on the design and control analysis of Shenhai Expressway Shenzhen Airport to He Ao Expressway(Ji He Expressway),the paper analyzes the control factors of the construction of the project,and according to its strict degree of restriction on the construction of the project The paper puts forward the solution to the various control conditions.Based on the characteristics of the project,the functional requirements of the machine are analyzed,and the functional orientation is defined.On this basis,the main technical standards of the project are determined.Finally,the advantages and disadvantages and applicability of various expansion and reconstruction methods are analyzed,and the scheme and implementation points of in-situ widening and reconstruction are put forward.