复杂水域多跨连续箱梁拆除施工技术研究

Study on Demolition Construction Technology of Multi-span Continuous Box Girder in Complex Waters

自20世纪80年代起,我国第一条高速公路的建成,掀起了我国高速公路建设的热潮。随着运营时间的累积,早期部分建成的高速公路面临病害问题日益突出。随着经济的持续快速发展,交通量日益增长,为缓解各类问题,改善不利局面,高速公路扩容工作势在必行。结合某高速公路扩容工程,介绍了复杂水域多跨连续箱梁拆除施工技术,重点介绍静力切割法、钢管支架法对复杂水域多跨连续箱梁拆除施工技术展开研究。

Since the 1980s,the construction of the first expressway in China has set off an upsurge of expressway construction in China.With the accumulation of operation time,the problems of diseases faced by some expressways built in the early stage are becoming increasingly prominent.With the continuous and rapid economy,the traffic volume is growing day by day.In order to alleviate various problems and improve the adverse situation,the expansion of expressways is imperative.Combined with an expressway expansion project,this paper introduces the demolition construction technology of multi span continuous box girder in complex waters,and focuses on the static cutting method and steel pipe support method to study the demolition construction technology of multi span continuous box girder in complex waters.