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| 考虑干湿循环影响下玄武岩残积土渗透系数的试验研究 | |
| 引用本文： | 余沛,张著芳,魏厚振,孟庆山.考虑干湿循环影响下玄武岩残积土渗透系数的试验研究[J].水利与建筑工程学报,2011,9(5):63-66,104. |
| 作者姓名： | 余沛 张著芳 魏厚振 孟庆山 |
| 作者单位： | 1. 天津城市建设学院天津市软土特性与工程环境重点实验室,天津,300384 2. 贵州公路工程集团有限公司,贵州贵阳,550001 3. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉,430071 |
| 基金项目： | 交通部西部交通建设科技项目(2009318802074); 国家自然科学基金资助项目(11072255) |
| 摘 要： | 利用常规的渗透仪和恒温恒湿箱对贵州玄武岩残积土进行了干湿循环下的渗透试验,探讨了玄武岩残积土的渗透系数与循环次数的关系。研究结果表明：渗透系数随干密度的增大呈递减趋势,最终趋于稳定,大量裂隙的发育是土样发生渗透的主要通道;由于游离氧化铁的存在,棕红色残积土经一次干湿循环后土样发生破坏,而黄褐色玄武岩残积土,经过7次干湿... |
| 关 键 词： | 玄武岩残积土 干湿循环 渗透系数 |
Experimental Study on Permeability Coefficient of Basalt Residual Soil Considering Influence of Drying and Wetting Cycle |
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| YU Pei,ZHANG Zhu-fang,WEI Hou-zhen,MENG Qing-shan.Experimental Study on Permeability Coefficient of Basalt Residual Soil Considering Influence of Drying and Wetting Cycle[J].Journal of Water Resources Architectural Engineering,2011,9(5):63-66,104. | |
| Authors: | YU Pei ZHANG Zhu-fang WEI Hou-zhen MENG Qing-shan |
| Affiliation: | YU Pei1,3,ZHANG Zhu-fang2,WEI Hou-zhen3,MENG Qing-shan3(1.Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment,Tianjin Institute of Urban Construction,Tianjin 300384,China,2.Guizhou Highway Engineering Group CO.,LTD.,Guiyang,Guizhou 550001,3.State Key Laboratory of Geotechnical Mechanics and Engineering,Wuhan Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China) |
| Abstract: | The permeability test is undertaken for the basalt residual soil from Guizhou by using the routine permeability apparatus and the constant temperature and humidity box in order to establish the relationship between the permeability coefficient and drying and wetting cycle parameters.It is shown that the permeability coefficient of the basalt residual soil would decrease with the increasing of dry density,and finally reach to a constant state.The large number of cracks are the main channel of soil penetratio... |
| Keywords: | basalt residual soil wetting-drying cycle permeability coefficient |
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