后注浆技术在复杂地质桩基工程上的应用  

The Application of Post-grouting Technology for Bored Piles of Pile Foundation Engineering in Complex Geological Conditions

作　　者：黄发源 王逢朝[2] 蔡雪霁[2] 田尔布[2] 

机构地区：[1]福建省第一建筑工程公司,福建三明365004 [2]三明学院,福建三明365004

出　　处：《常州工学院学报》2015年第6期12-15,共4页Journal of Changzhou Institute of Technology

基　　金：福建省教育厅A类科技项目(JA12307);福建省科学技术厅自然科学基金指导性科技计划项目(2012D125)

摘　　要：通过对三明市图书馆工程冲孔灌注桩的3根试桩进行注浆前和注浆后2次静载试验对比,结果表明采用后注浆技术后的灌注桩,其最大沉降量大幅下降约3~7 cm,回弹率值增加近30%,承载力提高约1倍。Two static load tests of three bored piles before grouting and after grouting were carried out in the library project of Sanming city. The results present that the bored piles with the technique of post-grou- ting reduced the maximum settlement by 3 to 7 cm,increased the resilient rate by nearly 30% and improved the bearing capacity by 100%.

关 键 词：后注浆 桩基 灌注桩 静载实验 

分 类 号：TU473[建筑科学—结构工程]