| 压力对膨胀土遇水膨胀的抑制作用 |
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| 引用本文： | 李振,邢义川,李鹏.压力对膨胀土遇水膨胀的抑制作用[J].水力发电学报,2006,25(2):21-26. |
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| 作者姓名： | 李振 邢义川 李鹏 |
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| 作者单位： | 1. 西北农林科技大学水建学院,陕西,杨凌,712100
2. 中国水利水电科学研究院,北京,100044 |
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| 基金项目： | 引进国际先进农业科技计划(948计划);西北农林科技大学校科研和教改项目 |
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| 摘 要： | 在压缩仪上对不同干密度的膨胀土进行分级浸水增湿和一次性浸水饱和膨胀变形试验,测试了试样在浸水前后不同压力下膨胀变形量的变化过程;初步分析压力抑制膨胀土遇水膨胀的变化规律,并给出通过干密度来初步估算膨胀压力,进而估算膨胀率的线性公式。
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| 关 键 词： | 岩土力学 膨胀变形 增湿压缩 膨胀土 |
| 收稿时间： | 2005-06-08 |
| 修稿时间： | 2005年6月8日 |
The pressure inhibition effect on swell deformation of expansive soil encountered with water |
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| LI Zhen,XING Yichuan,LI Peng.The pressure inhibition effect on swell deformation of expansive soil encountered with water[J].Journal of Hydroelectric Engineering,2006,25(2):21-26. |
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| Authors: | LI Zhen XING Yichuan LI Peng |
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| Abstract: | The swell deformation tests for the expansive soil of the distinct dry density are performed under the conditions of stage inundation and inundation saturated gaining damp by means of the compress instrument,the sample swell deformation amount of distinct variation course around inundation are tested under the conditions of different loads.The variation regularity of the pressure inhibition effect on swell deformation amount are analyzed primarily when the expansive soil is encountered with water.The linearity formula is proposed which the expansive pressure and swell rate are estimated initially by means of the dry density. |
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| Keywords: | geotechnical mechanics swell deformation immersion compress the expansive soil |
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