| 深层搅拌法加固码头软基离心模型试验研究 |
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| 引用本文： | 王年香,章为民. 深层搅拌法加固码头软基离心模型试验研究[J]. 岩土工程学报, 2001, 23(5): 634-638 |
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| 作者姓名： | 王年香 章为民 |
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| 作者单位： | 南京水利科学研究院土工研究所!江苏南京210024； |
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| 基金项目： | 国家“九五”重点科技攻关项目(96-415-01-01) |
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| 摘 要： | 运用离心模型试验技术对采用深层搅拌法加固码头接岸软基和沉箱码头基础的工作机理和破坏机理开展研究 ,弄清了影响整体稳定性的主要因素 ,得出了不同地基条件、不同着底方式、不同宽度加固体的外部破坏型式和地基整体破坏型式 ,证实了可用朗肯理论计算加固体两侧主、被动土压力。
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| 关 键 词： | 变形特性 破坏型式 土压力 CDM加固体 离心模型试验 |
| 文章编号： | 1000-4548(2001)05-0634-05 |
| 修稿时间： | 2001-03-21 |
Centrifuge model test of pier ground improved by CDM |
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| WANG Nianxiang,ZHANG Weimin. Centrifuge model test of pier ground improved by CDM[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(5): 634-638 |
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| Authors: | WANG Nianxiang ZHANG Weimin |
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| Affiliation: | Geotechnical Engineering Department Nanjing Hydraulic Research Institute Nanjing 210024 China |
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| Abstract: | The working and failure mechanism of soft ground improved by the cement deep mixing method (CDM) is studied with centrifuge model test for the foundation under retain wall of pile supported pier and the foundation under caisson. The main factors influencing the complete stability of improved ground are clarified. The failure type of ground improved by CDM in different geological conditions and with different width of improved ground are obtained. It is verified that the active and passive earth pressures on two sides of improved ground can be calculated with Rankine theory. |
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| Keywords: | deformation behaviour failure type earth pressure ground improved by CDM centrifuge model test |
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