| 孔隙水溶液浓度对膨胀土膨胀特性的影响 |
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| 引用本文： | 贾景超,杨永香,黄志全.孔隙水溶液浓度对膨胀土膨胀特性的影响[J].华北水利水电学院学报,2012,33(2):124-126,129. |
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| 作者姓名： | 贾景超 杨永香 黄志全 |
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| 作者单位： | 华北水利水电学院,河南郑州,450011 |
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| 基金项目： | 国家自然科学基金项目，郑州市创新型科技人才培育计划领军人才项目，教育部留学回国人员科研启动基金项目，华北水利水电学院高层次人才科研启动基金项目 |
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| 摘 要： | 通过开展恒体积膨胀压力试验与有荷膨胀率试验,研究了孔隙水溶液浓度对膨胀土膨胀特性的影响.试验结果表明,随着溶液浓度的增大,膨胀压力降低;相同浓度溶液制作的试样,分别浸入不同浓度的溶液,一种浓度小于制样所用浓度,另一种与制样溶液浓度相等,最终所得的膨胀压力与膨胀应变均很接近.通过对孔隙水赋存状态的分析表明,试验结果均符合渗透压理论.
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| 关 键 词： | 膨胀土 膨润土 膨胀压力 膨胀应变 孔隙水溶液浓度 |
Influences of Pore Aqueous Solution Concentration on the Swelling Property of Expansive Soil |
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| JIA Jing-chao
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YANG Yong-xiang
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HUANG Zhi-quan.Influences of Pore Aqueous Solution Concentration on the Swelling Property of Expansive Soil[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2012,33(2):124-126,129. |
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| Authors: | JIA Jing-chao YANG Yong-xiang HUANG Zhi-quan |
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| Affiliation: | (North China Institute of Water Conservancy and Hydroelectric Power,Zhengzhou 450011,China) |
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| Abstract: | The paper studies the influences of pore aqueous solution concentration on the swelling property of expansive soil through the constant volume swelling pressure experiment and loaded swelling rate experiment.The results indicate that the swelling pressure decreases with the increasing of solution concentration.In the experiment,two specimens made of the same solution concentration are immersed into the solutions with two different concentrations,one less than the solution concentration used to prepare specimen,and the other same to that.The result shows that the swelling pressure and the swelling strain of two specimens gained from the experiment are very close.The analysis on the existing state of the pore water shows that the experiment result is agree with the osmotic pressure theory. |
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| Keywords: | expansive soil bentonite swelling pressure swelling strain the pore aqueous solution concentration |
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