| 强夯施工对环境振动的影响分析 |
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| 引用本文： | 杨龙才,王炳龙.强夯施工对环境振动的影响分析[J].华东交通大学学报,2007,24(2):16-20. |
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| 作者姓名： | 杨龙才 王炳龙 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 利用强夯法加固软弱地基时,其夯击能将以波的形式向外扩散,进而导致周围环境的振动.本文以半无限弹性体理论为基础,考察了瑞利波的径向振动量和竖向振动量沿地基深度的衰减特性,认为竖向振动量是引发环境安全的主要因素;通过现场实测,研究了强夯引起的自由场地地面振动加速度及振动速度随距离的衰减规律,并对隔振沟的隔振效果进行了测试研究.
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| 关 键 词： | 强夯 环境振动 衰减规律 环境影响 现场测试 |
| 文章编号： | 1005-0523（2007）02-0016-05 |
| 收稿时间： | 2006-10-08 |
| 修稿时间： | 2006-10-08 |
Analysis for the Environmental Vibration Effects Caused by Dynamic Compaction |
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| YANG Long-cai,WANG Bing-long.Analysis for the Environmental Vibration Effects Caused by Dynamic Compaction[J].Journal of East China Jiaotong University,2007,24(2):16-20. |
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| Authors: | YANG Long-cai WANG Bing-long |
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| Affiliation: | Key laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China |
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| Abstract: | When dynamic compaction method is used to improve the soft soil foundation,environmental vibration will appear due to radiating of compaction energy.Based on the wave-theory of semi-infinite elastic solid,attenuation of radial direction and vertical direction of Rayleigh with depth wave have been studied,and environmental influence is mainly decided by the vertical vibration of Rayleigh wave.Through in-situ test,attenuation law of acceleration and velocity of free ground,effects of vibration reduction by trench have been analyzed in this paper. |
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| Keywords: | dynamic compaction environmental vibration attenuation law environmental influence in-situ test |
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