Key Technologies for Bridge Jacking Retrofit Construction in Coastal Complex Environments
With the increasing number of bridges,the issues of aging and damage have become in-creasingly significant.To ensure the long-term stability and safety of bridges,old bridges need renova-tion.Using the Xiaojia No.1 Bridge on the Qinglan Expressway in Qingdao as an example,this paper discusses the key technologies of bridge jacking renovation,focusing on the construction challenges and coping strategies.The study results show that for issues such as bridge diseases,poor geological condi-tions,tight schedules,and marine meteorological conditions,it is necessary to adopt multi-level social traffic and construction assurance measures,as well as rigorous construction monitoring methods.