后压浆钻孔灌注桩承载力机理分析及工程应用  

The mechanism analysis and engineering application of post grouting cast-in-place bored pile bearing capacity

作　　者：张辉[1] 吴超[2] 

机构地区：[1]黄河勘测规划设计有限公司地质勘探院 [2]中国地质大学(武汉)工程学院

出　　处：《山西建筑》2010年第6期83-84,共2页Shanxi Architecture

摘　　要：介绍了钻孔灌注桩后压浆技术的作用机理及其施工工艺,并结合某工程中采用的桩端桩侧后压浆和未压浆施工的4根桩静载荷试验的对比,分析了后压浆技术对钻孔灌注桩承载力和工程造价的影响,以推广后压浆技术的应用。The working mechanism, construction technology of post grouting cast-in-place bored pile technology was introduced. Combined with four piles static load test before and after adopting pile tip and pile side post grouting and without grouting construction comparison, the post grouting technology influences on cast-in-place bored pile bearing capacity and engineering cost were analyzed, so as to popularize post grouting technology application.

关 键 词：钻孔灌注桩 后压浆技术 单桩承载力 施工工艺 

分 类 号：TU473.1[建筑科学—结构工程]