| 充水预压加固沉井软土地基 |
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| 引用本文： | 郦能惠,陈生水,江松笙,冯跃进.充水预压加固沉井软土地基[J].岩土工程学报,1994,16(4):24-31. |
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| 作者姓名： | 郦能惠 陈生水 江松笙 冯跃进 |
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| 作者单位： | 南京水利科学研究院土工所；江苏省电力设计院； |
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| 摘 要： | 本文提出了一种加固沉井软土地基的新方法──充水预压加固法。其特点是充分利用沉并自重与井内充水作为荷载，在施工期对沉井底部下卧软土地基进行预压加固，解决了既要加固下卧软土层又不必加固上部上层的矛盾。并结合某电厂泵房工程，介绍了预测加固效果的弹塑性有限元分析方法及预压加固过程的现场监测与控制方法，提出了沉井地基的充水预压加固技术。
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| 关 键 词： | 充水预压 预压加固 沉井 软土地基 |
Filling Water Preloading Method for lmproving Soft Clay under Open Caisson Foundation |
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| Li Nenghui,Chen Shengshui,Jiang Songsheng,Feng Yuejin.Filling Water Preloading Method for lmproving Soft Clay under Open Caisson Foundation[J].Chinese Journal of Geotechnical Engineering,1994,16(4):24-31. |
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| Authors: | Li Nenghui Chen Shengshui Jiang Songsheng Feng Yuejin |
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| Affiliation: | Nanjing Hydraulic Research Institute jiangsu Electric Power Desig Instimte |
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| Abstract: | A new method──filling water preloading method for improving soft clay under an open cais-son foundation is presented.The weight of caisson and water filled in it are used as the load to improveits soft clay substratum during construction period. The method has advantage of improving not theoverburden layer but only its soft clay substratum of the caisson foundation. An elastic-plastic finite ele-ment analysis method to predict the effect of preloading improvement and a field monitoring method areexplained through a case history of caisson foundation of a pump station project. |
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| Keywords: | filling water preloading preloading consolidation open caisson foundation soft clay |
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