| 粉煤灰土工程特性试验研究 |
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| 引用本文： | 李长雨,刘寒冰,魏海斌.粉煤灰土工程特性试验研究[J].辽宁工程技术大学学报(自然科学版),2010,29(1). |
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| 作者姓名： | 李长雨 刘寒冰 魏海斌 |
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| 作者单位： | 1. 吉林大学,交通学院,吉林,长春,130022;长春工程学院,土木学院,吉林,长春,130012
2. 吉林大学,交通学院,吉林,长春,130022 |
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| 基金项目： | 863国家高科技研究发展计划基金资助项目(2007AA11Z114) |
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| 摘 要： | 为研究含水量对粉煤灰土特性的影响,采用试验分析的方法,得出了粉煤灰土(1:2)抗压强度随含水量增加平缓降低,含水量在15%～23.5%范围内的抗压强度都大于150kPa;粉煤灰土(1:2)在不同含水量下的破坏应变接近于5%;粉煤灰土(1:2)的变形模量随着含水量增加而降低;不同的含水量下灰土比为1:4、1:2和1:1的抗压强度都随着含水量的增加而减小,但灰土比为1:2时抗压强度均高于其他两种情况。利用无重复两因素方差分析了粉煤灰土特性的影响因素,得出含水量对粉煤灰土的抗压强度影响显著,含水量对粉煤灰土的变形模量影响显著,灰土比对粉煤灰土的抗压强度影响更显著。该成果为粉煤灰土在工程设计和应用提供理论依据。
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| 关 键 词： | 含水量 粉煤灰土 抗压强度 变形模量 |
Experimental study on engineering characteristics of fly ash soil |
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| LI Changyu,LIU Hanbing,WEI Haibin.Experimental study on engineering characteristics of fly ash soil[J].Journal of Liaoning Technical University (Natural Science Edition),2010,29(1). |
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| Authors: | LI Changyu LIU Hanbing WEI Haibin |
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| Institution: | 1. College of Transportation;Jilin University;Changchun 130022;China;2. College of Civil Engineering;Changchun Institute of Technology;Changchun 130012;China |
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| Abstract: | Test on composite material of fly ash and silt clay was conducted in this study. The study found that the compressive strength of fly ash soil (1:2) slowly decreases with the increase of moisture content; the compressive strength is greater than 150MPa when the moisture content ranges from 15% to 23.5%; the failure strain of fly ash soil (1:2) closes to 5% with different moisture contents; the modulus of deformation of fly ash soil (1:2) decreases with the increase of moisture content; the compressive stren... |
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| Keywords: | moisture content fly ash soil compressive strength the modulus of deformation |
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