Discussion on Treatment Technique of Certain Typical Defects of Large-scaled Bridges of Hunan Province

This paper describes a certain kind of typical defects existed in large bridges of our province. According to the defects such as box beam cracking, not full mud jacking of post - tensioning prestressed concrete beam bridge duct, damage of rigid bridge floor and damage of abutment and retaining wall of bridge approach, this paper analyzes the causes, and proposes the methods of treatment.