| 饱和软粘土的再固结性状研究 |
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| 引用本文： | 白冰,刘祖德.饱和软粘土的再固结性状研究[J].岩土工程学报,1999,21(2):54-60. |
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| 作者姓名： | 白冰 刘祖德 |
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| 作者单位： | 武汉交通科技大学土建系；武汉水利电力大学水利系； |
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| 摘 要： | 围绕“动静结合排水固结法”课题，通过室内试验研究饱和软粘土在冲击荷载作用下的再固结性状，重点分析排水条件对土体固结和再固结的影响，指出孔隙压力升高与再固结体应变之间的唯一性关系。提出再固结体积压缩系数和再固结压缩指数的概念并给出其确定方法。对冲击荷载作用后软土地基沉降计算方法进行讨论，包括多遍冲击和部分排水条件的情形，并给出试验验证。
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| 关 键 词： | 冲击荷载 饱和软粘土 再固结体应变 孔隙水压力 沉降 |
The study on reconsolidation characteristics of saturated soft clay |
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| Bai Bing,Liu Zude.The study on reconsolidation characteristics of saturated soft clay[J].Chinese Journal of Geotechnical Engineering,1999,21(2):54-60. |
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| Authors: | Bai Bing Liu Zude |
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| Affiliation: | Dept. of Civil Engineering Wuhan Transportation University Wuhan 430063 Dept. of Hydraulic Engineering Wuhan University of Hydraulic and Electric Engineering Wuhan 430072 |
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| Abstract: | For the subject on drainage consolidation method of combining static and dynamic loading, the reconsolidation characteristics of saturated soft clay under impact loading are studied by laboratory tests , and particularly, the influence of drainage condition on consolidation and reconsolidation of soft clay are analysed. Based on test results, the uniqueness of the relationship between pore pressure and reconsolidation volumetric strain is pointed out . The methods for determining coefficient of reconsolidation volume compressibility and reconsolidation index are given. Finally, a model for predicting the settlement of soft clay foundation after impact loading is suggested, which fits well with test results. |
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| Keywords: | impact loading saturated soft clay reconsolidation volumetric strain pore water pressure settlement |
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