[1]邵俐,方磊,刘松玉.沉管干振碎石桩对土层的挤密效应[J].东南大学学报(自然科学版),2001,31(3):36-39.[doi:10.3969/j.issn.1001-0505.2001.03.009]
 Shao Li,Fang Lei,Liu Songyu.Analysis of Soil-Layer Compaction Effect by Dry-Vibrated Gravel Column[J].Journal of Southeast University (Natural Science Edition),2001,31(3):36-39.[doi:10.3969/j.issn.1001-0505.2001.03.009]
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沉管干振碎石桩对土层的挤密效应()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
31
期数:
2001年第3期
页码:
36-39
栏目:
土木工程
出版日期:
2001-05-20

文章信息/Info

Title:
Analysis of Soil-Layer Compaction Effect by Dry-Vibrated Gravel Column
作者:
邵俐 方磊 刘松玉
东南大学岩土工程研究所,南京 210096
Author(s):
Shao Li Fang Lei Liu Songyu
Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China)
关键词:
碎石桩 地基处理 挤密效应
Keywords:
gravel column ground treatment layer compaction effect
分类号:
TU413
DOI:
10.3969/j.issn.1001-0505.2001.03.009
摘要:
探讨了沉管干振碎石桩对土层的加固效应.通过在不同土质条件中对不同充盈系数的碎石桩在成桩过程中的孔压、侧向位移的量测以及碎石桩处理后对桩间土进行的标准贯入试验和瞬态瑞利波的检测,经过分析认为:碎石桩的地基处理效果与土层性质关系很大,在粉土层中碎石桩处理效果明显,在粘性土中碎石桩处理后土体强度提高不大; 充盈系数大的碎石桩对桩周土挤压明显; 围压也是影响碎石桩处理效果的一个重要因素,因此在碎石桩地基处理中应综合考虑各种因素,以获得最佳的技术和经济效益.
Abstract:
The compaction effect on the soil by dry-vibrated gravel columns is discussed.According to the measuring of the pore water pressure, and the lateral-displacement and the standard penetration tests between piles after foundation treatment by gravel piles and the inspect by SASW, the authors conclude that the treatment effect of gravel piles relates closely to the soil property — the treatment effect on silty soil is evident in contrast with the effect on clay. This paper also concludes that around-pressure is another important factor in foundation treatment effect. In a word, the treatment effect by gravel columns should integrate all factors in order to gain the most technical and economic benefit.

参考文献/References:

[1] 中华人民共和国交通部.JTJ017—96公路软土地基路堤设计与施工技术规范.北京:人民交通出版社,1997
[2] 刘松玉,方磊,杜延军.干振碎石桩对土层振动挤密效应研究.见:中国土木工程学会.第八届土力学及岩土工程学术会议论文集.北京:万国学术出版社,1999.523~526
[3] Seed H B,Booker J R.Stabilization of potentially liquefiable sand deposit using gravel drains.Journal of the Geotechnical Engineering Division,1997(7):25~29

备注/Memo

备注/Memo:
作者简介:邵俐,女,1969年生,硕士,讲师.
更新日期/Last Update: 2001-05-20