卵石地基混凝土灌注桩施工质量通病及其防治

Gravel Foundation Concrete Pile Construction Quality Control

卵石地基钻孔灌注桩工程施工质量通病主要有:挖孔及混凝土灌注造成桩孔坍孔、孔位倾斜、缩颈、断桩、桩身孔洞、钢筋笼"上浮"、"烂桩头"等现象,就其形成原因逐一进行分析,并提出了相应的防治措施,这些措施既可避免上述工程问题的发生,也可为相似工程问题处理提供借鉴.

For the gravel foundation pouring piles,the construction quality defects have these phenomenon,such as hole collapse during digging the piles＇ hole or concrete poured,hole tilting,neckle shrinked,holes in the piles,steel cage floating up,the end of the piles rotten,the causes of forming these defects were analyzed,and some corresponding defending measures were put forward.These measures not only can avoid causing upper engineering problems,but also can provid some reference for the similar engineerings.