管桩套箍对桩头质量的影响范根育（广东省建材工业科研所）管桩套箍是指桩头的钢板圈，其作用是阻止桩头受锤击时产生横向变形。套箍与砼粘结不密实时，阻止横向变形的作用就减少，桩头就容易被打烂。目前，广东省管桩厂使用的套箍有两种（见图１）。这两种套箍对桩头质量... The influence of pipe hoop hoop on the quality of the pile head Fan Genyu (Guangdong Institute of Building Materials Industry) The pipe hoop hoop is the steel plate ring of the pile head. Its role is to prevent the pile head from being laterally deformed when hammered. When the hoop and the hoop are not closely bonded, the effect of preventing lateral deformation is reduced, and the pile head is easily broken. At present, there are two types of ferrules used in pipe pile factories in Guangdong Province (see Figure 1). Both types of hoop on the quality of pile head ...