| 离心模型试验在碎石桩处理红层松软土地基沉降中的研究 |
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| 引用本文： | 刘俊新,卿三惠,王春雷,邱恩喜. 离心模型试验在碎石桩处理红层松软土地基沉降中的研究[J]. 四川大学学报(工程科学版), 2005, 37(5): 36-40 |
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| 作者姓名： | 刘俊新 卿三惠 王春雷 邱恩喜 |
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| 作者单位： | 1. 西南交通大学,土木工程学院,四川,成都,610031
2. 铁道第二勘察设计院,四川,成都,610031 |
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| 摘 要： | 离心模型中的固结时间是原型固结时间的1／n2，能够在较短的时间内模拟软土地基的长期沉降。为了准确地预测软基的沉降规律，论证软基处理的可行性，因此在简化软土地基模型中，通过在预成孔中放入细砂模拟碎石桩，同时通过离心机的高速旋转，对原模型施以ng加速度，使地基在较短的时间固结．通过测量地基变形，可以很好地预测到地基的施工期和工后沉降与时间的关系。
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| 关 键 词： | 软土地基 离心机 碎石桩 |
| 文章编号： | 1009-3087（2005）05-0036-05 |
| 收稿时间： | 2005-03-24 |
| 修稿时间： | 2005-03-24 |
Research on Simulating Settlement of Disposing Soft Clay Foundation of Red Layers with Gravel Pile by Centrifugal Machine |
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| LIU Jun-xin,QING San-hui,WANG Chun-lei,QIU En-xi. Research on Simulating Settlement of Disposing Soft Clay Foundation of Red Layers with Gravel Pile by Centrifugal Machine[J]. Journal of Sichuan University (Engineering Science Edition), 2005, 37(5): 36-40 |
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| Authors: | LIU Jun-xin QING San-hui WANG Chun-lei QIU En-xi |
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| Affiliation: | LIU Jun-xin, QING San-hui, WANG Chun-lei, QIU En-xi ( 1. Civil Eng. Dept. of Southwest Jiaotong Univ., Chengdu 610031, China; 2.The Second Railway Survey |
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| Abstract: | Consolidation time in the centrifugal model testing is 1/n2 of the prototype, thus secular settlement of soft ground can be simulated within a short time. So in order to predict settlement of soft ground and decide if disposal of soft ground is feasible, grain sand is used simulating gravel pile and making soft ground model n times gravity in the centrifugal machine, by this method soft ground can be consolidated very quickly. The relation of settlement during construction and after construction can be well predicted and furthermore, disposal of soft ground is approved to be feasible. |
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| Keywords: | soft ground centrifugal machine gravel pile |
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