| 石灰改性膨胀土强度的室内试验研究 |
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| 引用本文： | 王明甫,程钰. 石灰改性膨胀土强度的室内试验研究[J]. 人民长江, 2010, 41(6): 71-73 |
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| 作者姓名： | 王明甫 程钰 |
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| 作者单位： | 1. 西北农林科技大学,水利与建筑工程学院,陕西,杨凌,712100
2. 中国科学院,武汉岩土力学研究所,湖北,武汉,430071 |
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| 摘 要： | 研究了不同含水率、石灰掺量、干密度、龄期对改性中膨胀土承载力(CBR)值和无侧限抗压强度值的影响。结果表明:不同条件对CBR值和无侧限抗压强度值的影响基本相同;CBR值和无侧限抗压强度值随着石灰掺量、干密度、龄期的增加而增加;最佳石灰掺量为6%;最佳龄期控制在14 d;现场干密度控制在最大干密度;压实含水率按高于最优含水率的2%~3%来控制。
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| 关 键 词： | 石灰改性 承载比(CBR) 无侧限抗压强度 膨胀土 |
Laboratory study on strength of expansive soil improved with lime |
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| WANG Mingfu,CHENG Yu. Laboratory study on strength of expansive soil improved with lime[J]. Yangtze River, 2010, 41(6): 71-73 |
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| Authors: | WANG Mingfu CHENG Yu |
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| Affiliation: | WANG Mingfu1,CHENG Yu2(1.College of Water Resources , Architectural Engineering,Northwest A&F University,Yanglnig 712100,China,2.Institute of Rock , Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,China) |
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| Abstract: | We study the influence of different water contents,lime contents,dry densities and ages to the CBR value and unconfined compressive strength value of expansive soil.According to the results: different conditions have similar influence on the CBR value and the unconfined compressive strength value;CBR value and unconfined compressive strength value increase with increment of lime content,dry density and age;the optimal lime content is 6%,optimum age is 14d;the optimal in-site dry density is the maximum dry d... |
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| Keywords: | lime modification California Bearing Ratio(CBR) unconfined compressive strength expansive soils |
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