Key Techniques Of East Ring Freeway Primary Design In Airport Economic Comprehensive Experiment Zone

In the new version of "Henan Province Highway Network Adjustment Plan",Zhengzhou Xinzheng Airport to ZhoukouXihua Expressway is a new highway planning project.Highway construction needs to consider the following issues: the route comparison,the bridge than the ratio Election,exchange than the election,the road than the election.The rationality of the choice of the program directly affects whether the project can meet the needs of the national economic construction,whether the project can achieve the desired results.In this paper,the technical research of the project is carried out by the following aspects: 1.The role of the Donghuan Expressway in the road network in Henan Province,2.The research status of the key technical problems in the design of expressway at home and abroad,The present situation and characteristics of the construction of the local expressway,4.elaborate the basic process of the preliminary design of the Donghuan Expressway,and focus on the key issues in the design of the Donghuan Expressway.This paper first introduces the origin,significance and domestic and foreign research of the subject.Secondly,the paper describes the current situation and characteristics of the regional expressway and clarifies the important position of the project.The third paper expounds the overall design of the Donghang Expressway in the comprehensive experimental area of the airport,The roadbed and drainage design,the bridge design and the cross design.The fourth paper focuses on the key technologies of the Donghuan Expressway,compares the recommended lines and the comparison lines from all aspects,designs and studies the large bridges along the route.5 interchange.Finally,the paper summarizes the project and further deepens the research content and the problems to be solved urgently.