| 高频振动打桩机理的试验研究 |
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| 引用本文： | 陈岱杰,陈龙珠,郑建国. 高频振动打桩机理的试验研究[J]. 铁道建筑技术, 2006, 0(3): 70-73 |
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| 作者姓名： | 陈岱杰 陈龙珠 郑建国 |
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| 作者单位： | 1. 上海交通大学土木系安全与防灾工程研究所,上海,200030
2. 中国联合工程公司,杭州,310012 |
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| 摘 要： | 扼要评述高频振动沉桩机理,叙述在不同相对密度的饱和砂土中,通过小型模型试验研究模拟桩体贯入深度随激振频率(20~80 Hz)的变化规律。试验结果初步表明,增高振动频率可使饱和砂土液化加速,土阻力相应地快速减小,显著提高沉桩效率。
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| 关 键 词： | 地基加固 饱和砂土 高频振动 沉桩 |
| 文章编号： | 1009-4539(2006)03-0070-04 |
| 修稿时间： | 2005-12-26 |
Experimental Study on Mechanism of Piling with High-frequency Vibration |
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| Chen Daijie,Chen Longzhu,Zheng Jianguo. Experimental Study on Mechanism of Piling with High-frequency Vibration[J]. Railway Construction Technology, 2006, 0(3): 70-73 |
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| Authors: | Chen Daijie Chen Longzhu Zheng Jianguo |
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| Abstract: | The existing points on the mechanism of piling with high-frequency vibration are firstly reviewed in this paper,and then depicts a set of simulative experiments conducted on the saturated sand with different relative densities to investigate piling with vibration of 20~80 Hz.The preliminary results have shown that higher frequencies cause the saturated sand lower values of the liquefaction strength and leads to an easier piling.The conclusions of this paper are useful for further study and application of piling with high frequency vibration to practice. |
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| Keywords: | liquefaction high-frequency vibration saturated sand piling |
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