摘要
近年来,后注浆技术得到了广泛的应用。钻孔灌注桩可大大降低建筑物的沉降,并使建筑物的沉降更加均匀,文章介绍后注浆工艺的承载力提高机理及在天津地区的几个工程实例,分析了注浆前后单桩竖向极限承载力对比情况及影响单桩竖向极限承载力的几个因素。
Post grouting technique is widely used in resent years. Drill hole-grouting piling can largely reduce subsidence and lead to homogeneous subsidence. This paper introduces mechanism of raising the bearing capacity by post grouting and some project examples to which post grouting technique is applied and compares vertical bearing capacity limit before and after the grouting then analyses factors that influence the vertical bearing capacity limit.
出处
《地质找矿论丛》
CAS
CSCD
2010年第4期381-386,共6页
Contributions to Geology and Mineral Resources Research
关键词
灌注桩后注浆
受力机理
注浆量
单桩竖向极限承载力
post grouting technique of piling
force mechanism
grouting volume
vertical bearing capacity limit of single pile
