| 大厚度饱和砂土液化地区振冲桩施工工艺试验研究 |
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| 引用本文： | 李继超,桑有明. 大厚度饱和砂土液化地区振冲桩施工工艺试验研究[J]. 岩土工程技术, 2013, 0(5): 259-262 |
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| 作者姓名： | 李继超 桑有明 |
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| 作者单位： | 中冶成都勘察研究总院有限公司,四川成都610023 |
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| 摘 要： | 针对大厚度饱和砂土液化地基，采用振冲碎石桩方案，分析不同型号振冲器成桩效果，试验不同的成孔辅助方式和成桩填料方法，对“抱孔”、振冲器掉落和虚高等施工常见问题进行分析和预防处理，探讨施工工艺合理性，提高施工效率，降低安全风险，为类似工程提供一定参考借鉴。
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| 关 键 词： | 饱和砂土 液化 振冲碎石桩 水协气协法 综合填料法 |
Experimental Research on Construction Technology of Vibroflotation Pile in Saturated Sandy Liquefaction Area with Large-thickness |
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| Li Jichao Sang Youming. Experimental Research on Construction Technology of Vibroflotation Pile in Saturated Sandy Liquefaction Area with Large-thickness[J]. Geotechnical Engineering Technique, 2013, 0(5): 259-262 |
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| Authors: | Li Jichao Sang Youming |
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| Affiliation: | Li Jichao Sang Youming (Chengdu Surveying Geotechnical Research Institute Co. , Ltd of Metallurgy Construction in China, Chengdu 610023, Sichuan,China) |
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| Abstract: | The program of gravel piles with vibroflotation is used to handle the liquefaction of large-thickness saturated sand foundation. In this program, the pile effect of different types of vibrator is discussed, the different pore-forming auxiliary ways and pile filler methods are tested, frequently asked questions in construction, such as ＂holding hole＂, vibrator fallen, vir- tual height etc. , are analysed and the preventive measures are suggested in order to discuss on the construction process, improve construction efficiency, reduce security risks, provide some reference for the similar engineering. |
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| Keywords: | saturated sand liquefaction gravel piles with vibroflotation method of water and gas assistance comprehensive packing method |
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