Abstract:Due to the influence of regional environment and development strategy, sometimes there is a big difference between the regional planning elevation and the current site elevation. It is necessary to consider the connection requirements for the recent engineering quantity control and after the long-term site elevation change. Taking the Zhongxin Road - Zixin Road Interchange Project in Dongjiakou Harbor Area of Qingdao as an example, affected by the planned harbor area and adjacent railway, the regional planned elevation is about 20 meters lower than the current elevation. The site elevation is cleverly used in the project to reduce the length of the bridge section, decrease the amount of excavation works and take into account the slope connection after the reduction of long-term regional elevation. At the same time, the conflict between the interchange project and the railway is reduced by optimizing and selecting the interchange types. The overall purpose is to ensure the traffic safety, reduce the impact on the railway and reduce the cost.
