| 强夯加固地基振动影响的试验研究 |
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| 引用本文： | 李福民,孙勇. 强夯加固地基振动影响的试验研究[J]. 东南大学学报(自然科学版), 2002, 32(5): 809-812 |
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| 作者姓名： | 李福民 孙勇 |
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| 作者单位： | 深圳市土地投资开发中心,深圳,518031 |
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| 摘 要： | 通过工程实例对强夯地基时振动加速度进行测试，分析了振动加速度的传播规律，提出建筑物安全距离判别方法及估算方法，研究了隔振沟的隔振效果及其对振动传播规律的影响，采用量纲分析原理，探讨了振动加速度与夯击能量，土的特性及传播距离之间的关系，通过大量的试验数据统计，得到经验公式和经验参数，由此可作为强夯加固地基安全距离的估算方法。
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| 关 键 词： | 试验研究 强夯 振动加速度 安全距离 地基加固 隔振沟 |
| 文章编号： | 1001-0505(2002)05-0809-04 |
Experimental research on the influence of vibration during improvement of the ground with dynamic compaction |
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| Li Fumin Sun Yong. Experimental research on the influence of vibration during improvement of the ground with dynamic compaction[J]. Journal of Southeast University(Natural Science Edition), 2002, 32(5): 809-812 |
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| Authors: | Li Fumin Sun Yong |
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| Abstract: | Based on the results of the measurement of the vibration acceleration during dynamic compaction, the rules of the transmission of vibration acceleration are analyzed. The rules to determine the safe distance between a building and the plot of dynamic compaction are suggested and the method to estimate the safe distance is built. It is studied how the ditch of isolating vibration eliminates the vibration due to dynamic compaction and affects the transmission of the vibration. Based on dimension principle, the relationships between vibration acceleration and the energy of dynamic compaction, the characters of the ground and the transmission distance are analyzed. The empirical formula is built by statistics analysis of the data from situ tests. It can be used to estimate the safe distance of improving the ground with dynamic compaction method. |
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| Keywords: | dynamic compaction method vibration acceleration safe distance |
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