| 饱和软粘土的试样预固结探讨 |
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| 引用本文： | 刘佩琳,朱红雷. 饱和软粘土的试样预固结探讨[J]. 浙江水利水电专科学校学报, 2007, 19(1): 11-14,48 |
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| 作者姓名： | 刘佩琳 朱红雷 |
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| 作者单位： | 浙江水利水电勘测设计院,浙江,杭州,310002 |
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| 摘 要： | 就室内土工试验而言,试样的应力释放是无法避免的.针对饱和软粘土进行不固结不排水试验时的预固结问题进行探讨,通过一些试样的预固结处理,与非预固结试验资料、十字板抗剪强度的对比,分析,得出当施工速率较快,地基不发生固结排水时,抗滑稳定安全计算采用的不排水强度指标若采用未经预固结处理的快剪指标c、Φ值,会导致安全系数偏小的结论.对于饱和软粘土,采取室内预固结是一种在试验开始前把它恢复到原来的应力状态的行之有效的方法.
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| 关 键 词： | 饱和软粘土 预固结 应力释放 不固结不排水试验 十字板抗剪强度 抗滑稳定 |
| 文章编号： | 1008-536X（2007）01-0011-04 |
| 收稿时间： | 2006-11-11 |
| 修稿时间： | 2006-11-11 |
The Preconsolidation of Saturated Softclay |
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| LIU Pei-ling,ZHU Hong-lei. The Preconsolidation of Saturated Softclay[J]. Journal of Zhejiang Water Conservancy and Hydropower College, 2007, 19(1): 11-14,48 |
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| Authors: | LIU Pei-ling ZHU Hong-lei |
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| Abstract: | Test-sample's release of stress is inevitable in soil mechanics experiment.The preconsolidatiing problem of saturated soft-clay's unconsolidated undrained-test is discussed.After preconsolidating samples,then comapre with the data of vane strength value and non-preconsollidating test,it is suggested that safety factor would be lower if stability sliding safty measure use undrained strength value.Prconsolidating sample test will effectively restore the original stress status of saturated soft clay. |
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| Keywords: | saturated soft clay preconsoliodation release of stress unconsolidated undrained test vane strength value stability against sliding |
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