| 后压浆CFG桩复合地基的应用 |
| |
| 引用本文： | 张晓春,李金武,龙铁牛,许晖. 后压浆CFG桩复合地基的应用[J]. 世界地质, 2011, 30(3): 459-462. DOI: 10.3969/j.issn.1004-5589.2011.03.021 |
| |
| 作者姓名： | 张晓春 李金武 龙铁牛 许晖 |
| |
| 作者单位： | 1．北京首钢融创置地有限公司，北京100094；2．中地地矿建设有限公司，北京100107；湖南省望城县城镇建设投资开发有限责任公司，湖南望城410200；4．建设综合勘察研究设计院有限公司，北京100007 |
| |
| 基金项目： | 黑龙江省教育厅项目(11551354) |
| |
| 摘 要： | 结合某高层建筑地基处理工程，介绍后压浆CFG桩复合地基的承载力计算和施工工艺。通过现场栽荷试验、低应变检测等试验分析加固效果，探讨后压浆技术应用于CFG桩的可行性。分析结果表明，桩端后压浆CFG桩可以明显提高地基的承载力，单桩竖向承载力较压浆前提高了一倍；低应变实测波形显示在桩端的桩一土界面上波形变化不明显，说明浆液向桩端四周扩散良好，有效加固了土层。
|
| 关 键 词： | 后压浆 CFG桩复合地基 荷载试验 |
Application of post-grouting CFG pile composite foundation |
| |
| ZHANG Xiao-chun,LI Jin-wu,LONG Tie-niu,XU Hui. Application of post-grouting CFG pile composite foundation[J]. Global Geology, 2011, 30(3): 459-462. DOI: 10.3969/j.issn.1004-5589.2011.03.021 |
| |
| Authors: | ZHANG Xiao-chun LI Jin-wu LONG Tie-niu XU Hui |
| |
| Affiliation: | 1．Rongchuang Real Estate Co．Ltd，Shougang Group，Beijing 100094，China； 2．China Geo-engineering Corporation，Beijing 100107，China； 3．Wangcheng Urban Construction Investment ＆Development Corporation of Hunan，Wangcheng 410200，Hunan，China； 4．China Institute of Geotechnical Investigation and Surveying Co.，Ltd，Beijing 100007，China |
| |
| Abstract: | Combining with the foundation treatment project of one high-rise building,the authors introduce the bearing capacity and construction technique of CFG pile composite foundation,and discuss the feasibility of post-grouting technology applied in CFG pile by analyzing consolidation effect and in-situ loading test and low strain detection.The results show that the bearing capacity of foundation is obviously enforced by post-grouting CFG pile, the vertical bearing capacity of single pile increases and higher tha... |
| |
| Keywords: | post-grouting CFG pile composite foundation loading test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《世界地质》浏览原始摘要信息 |
|
点击此处可从《世界地质》下载全文 |
