| 取样扰动对固结系数的影响研究 |
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| 引用本文： | 邓永锋,刘松玉,季署月.取样扰动对固结系数的影响研究[J].岩土力学,2007,28(12):2687-2690. |
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| 作者姓名： | 邓永锋 刘松玉 季署月 |
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| 作者单位： | 1.东南大学 交通学院岩土工程研究所，南京，210096；2. 扬州市水利局，扬州，225002 |
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| 摘 要： | 在软土工程中，地基土的固结系数是重要参数。目前固结系数的选取主要根据室内固结试验得到的沉降与时间曲线得到。但已有的研究成果表明，室内试验获得的固结系数远低于现场资料反演得到的固结系数，取样扰动是一个重要的影响因素。根据Hong & Onitsuka的扰动度定义，推导了取样扰动对固结系数的影响，并引用了大量的试样数据验证了分析的合理性。
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| 关 键 词： | 固结系数 取样扰动 扰动度 |
| 文章编号： | 1000-7598-（2007）12-2687-04 |
| 收稿时间： | 2006-02-16 |
| 修稿时间： | 2006-06-21 |
Effect of sample disturbance on consolidation coefficient |
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| DENG Yong-feng,LIU Song-yu,JI Shu-yue.Effect of sample disturbance on consolidation coefficient[J].Rock and Soil Mechanics,2007,28(12):2687-2690. |
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| Authors: | DENG Yong-feng LIU Song-yu JI Shu-yue |
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| Institution: | 1. Institute of Geotechnical Engineering,College of Transportation, Southeast University, Nanjing 210096, China; (2. Yangzhou Water Conservancy Bureau, Yangzhou 225002, China |
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| Abstract: | The consolidation coefficient is key parameters in the soft clay engineering. At persent, the consolidation coefficient is obtained mainly by the lab oedometer and back analysis with in-situ observed settlements. But the lab coefficient is much less than that from back analysis of in-situ data. The sample disturbance is an important factor. The coefficient after disturbance is achieved with the disturbance degree proposed by Hong & Onitsuka; After validation by former research, the coefficient is discussed. |
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| Keywords: | consolidation coefficient sample disturbance disturbance degree |
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