| 采用高应变动测法分析CFG桩承载力的试验研究 |
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| 引用本文： | 季鹏,邹允祥,刘松玉,朱向阳,马东梅.采用高应变动测法分析CFG桩承载力的试验研究[J].岩土力学,2005,26(Z1):69-72. |
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| 作者姓名： | 季鹏 邹允祥 刘松玉 朱向阳 马东梅 |
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| 作者单位： | 1. 东南大学 岩土工程研究所，南京 210096；2. 连云港高速公路建设指挥部, 江苏 连云港 222001 |
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| 摘 要： | 在高速公路海相超软土地基处理中CFG桩（水泥-粉煤灰-碎石桩）的应用已越来越广泛1～4]。目前由于CFG桩荷载传递的规律及设计计算还局限于经验判断而造成浪费。这里将重点研究动力载荷测试确定单桩承载力和桩侧阻力。试验选在连云港海相软土地区，试验结果将对CFG桩设计参数进行修正。
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| 关 键 词： | CFG桩 连云港海相超软土 高速公路 高应变测试法 |
| 收稿时间： | 2005-02-02 |
Load transfer mechanism of cement-flyash-gravel pile in soft clay by high strain testing |
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| JI Peng,ZHOU Yong-qiang,LIU Song-yu,ZHU Xiang-yang,MA Dong-mei.Load transfer mechanism of cement-flyash-gravel pile in soft clay by high strain testing[J].Rock and Soil Mechanics,2005,26(Z1):69-72. |
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| Authors: | JI Peng ZHOU Yong-qiang LIU Song-yu ZHU Xiang-yang MA Dong-mei |
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| Institution: | 1. Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China;
2. Lianyungang Headquarters of Expressway Construction, Lianyungang 222001, China |
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| Abstract: | Cement-flyash-gravel CFG, piles are found more and more application to soft clay ground improvement in expressway engineering in China. The load transfer mechanism and design calculation theory are conducted empirically in most cases, this resulting in the higher cost compared with other columns. This study focuses on the dynamic method in determining bearing capacity and shaft resistance. The testing site is typically selected in Lianyungang, where the soft marine clay is well known. Finally, the CFG pile design parameters are recommended. |
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| Keywords: | cement-flyash-gravel pile Lianyungang marine clay expressway high strain testing |
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