| 振冲密实联合振动碾压法加固粉细砂试验研究 |
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| 引用本文： | 张虎平,周健,贾敏才.振冲密实联合振动碾压法加固粉细砂试验研究[J].工业建筑,2005,35(Z1):451-453. |
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| 作者姓名： | 张虎平 周健 贾敏才 |
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| 作者单位： | 1. 上海航道勘察设计研究院
2. 同济大学,地下建筑与工程系,上海,200092 |
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| 摘 要： | 结合上海市某重点工程,通过现场振冲试验,研究了振冲密实联合振动碾压法加固深厚粉细砂吹填土的适用性。在现场试验中,进行了水位测试、静力触探试验、振动碾压前后地表沉降观测和载荷板试验。研究了振冲时地下水位变化对振冲效果的影响,另外还对最优碾压遍数的确定进行了探讨。现场试验的结果表明,振冲密实联合振动碾压法可以应用在粉细砂的地基处理中,并可以取得很好的效果。
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| 关 键 词： | 振冲 振动碾压 水位 静力触探 载荷板试验 |
| 修稿时间： | 2004年5月30日 |
SILTY FINE SANDS TREATMENT USING VIBROFLOTATION COMBINED WITH VIBRATING ROLLER COMPACTION |
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| Zhang Huping,Zhou Jian,Jia Mincai.SILTY FINE SANDS TREATMENT USING VIBROFLOTATION COMBINED WITH VIBRATING ROLLER COMPACTION[J].Industrial Construction,2005,35(Z1):451-453. |
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| Authors: | Zhang Huping Zhou Jian Jia Mincai |
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| Abstract: | Vibroflotation compaction is a comparably mature method for the improvement of cohesiveless soils,but it is seldom used to strengthen silty fine sands without additional stone aggregates because of some failure case histories.In this paper,the in-situ tests were held to achieve the related characteristics of the silty fine sand.The groundwater level and cone penetration tests(CPT)were made to discover the relationship between the rising of groundwater table and the effect of vibroflotation.The optimal times selcting of vibrating roller compaction was also discussed.Based on the successful in-situ experiment in Shanghai,it is verified that vibroflotation combined with vibrating roller compaction is significantly efficient in strengthening silty fine sands. |
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| Keywords: | vibrofloation vibrating roller compaction groundwater level cone penetration test plate loading test |
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