摘要
Abstract
In order to realize the effective integration of the expressway and the local road network,the expressway will cross with the local road network,water network,pipe network and other facilities and equipment,and the scheme of crossing the highway up and down is often adopted to ensure the smooth flow of local roads,water and pipe networks.In the construction,we should first repair the temporary guarantee project and then build the permanent guarantee project.Under the strict control of the basic farmland land policy in some places,it is impossible to build temporary guaranteed roads outside the red line of expressways,so it is necessary to study the construction technology,in order to realize the organic combination of highway construction,basic farmland occupation and local road access.Taking the reverse construction of a deep cutting overpass on Guang-Mian Expressway as an example,this paper introduces the reverse construction technology of vehicle flyover from the aspects of design scheme adjustment and key construction scheme control,hoping to provide some reference for similar projects.关键词
车行天桥/现浇连续箱梁/逆作施工/重点工序/优化设计Key words
vehicle overpass/cast-in-place continuous box girder/reverse construction/key working procedure/optimal design分类
交通工程
