摘要
在京哈高速公路长春至四平段改扩建工程建设项目中,为有效控制新旧桥梁之间的沉降差,拼宽桥梁钻孔灌注桩基础采用桩端后压浆技术。阐述了桩端后压浆的施工工艺控制措施、施工控制要点、工艺流程等,总结了桩端后压浆技术的特点。
During the section from Changchun to Siping in the reconstruction and extension project of Beijing - Harbin Expressway, to effectively control the differential settlement between new bridge and old bridge, the post grouting technique behind pile tip shall be used in cast - in - situ bored pile foundation of widening bridge. The construction technological controlling measures of pile tip post grouting, construction controlling essentials and technological process are explained and the characteristics of pile tip post grouting technique are summarized.
出处
《北方交通》
2014年第1期16-18,22,共4页
Northern Communications
关键词
高速公路
改扩建
桩端后压浆技术
新旧桥沉降差
Expressway
Reorganization and expansion
Pile tip post grouting technique
Differential settlement between new bridge and old bridge
