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Position: Home > Articles > Study on Capacity of Improving Loess Anti-shear Strength and Anti-permeability of Two Kinds of Ionic Soil Solidified Agent Water Saving Irrigation 2009 (5) 35-38

2种离子固化剂改善黄土抗剪强度和抗渗性的研究

作  者:
张丽萍;张兴昌;孙强
单  位:
中国科学院水利部水土保持研究所水利部水土保持生态工程技术研究中心;烟台市水利建筑勘察设计院;西北农林科技大学资源环境学院
关键词:
土壤固化剂;抗剪强度;抗渗性
摘  要:
为了探讨CONAID和LUKANG 2种离子固化剂的固土性能及其影响因素,对不同固化剂掺量、养护龄期、压实度和含水率的固化黄土进行了直剪试验和渗透试验。研究结果表明:随着固化剂掺量、养护龄期和压实度增大,2种固化土的内摩擦角和黏聚力呈上升趋势,渗透系数呈下降趋势,且规律比较接近。其中LUKANG固化剂对黄土抗剪强度和抗渗性的改善效果优于CONAID固化剂。建议在施工过程中选用LUKANG固化剂,掺量宜取0.01%。为了达到更好的抗剪和抗渗效果,应尽量延长固化土的养护龄期,增加压实度。
译  名:
Study on Capacity of Improving Loess Anti-shear Strength and Anti-permeability of Two Kinds of Ionic Soil Solidified Agent
作  者:
ZHANG Li-ping1,ZHANG Xing-chang2,SUN Qiang3(1.College of Resource & Environment,Northwester A&F University,Yangling 712100,Shaanxi Province,China;2.Institute of Soil and Water Conservation,Chinese Academy of Science & Ministry of Water Resources,Research Centre on Soil and Water Conservation,Ministry of Water Resources,Yangling 712100,Shaanxi Province,China;3.Yantai Investigation & Design Institute of Building and Water Conservancy,Yantai 264001,Shandong Province,China)
关键词:
soil solidifying agent;anti-shear strength;anti-permeability
摘  要:
In order to study the soil solidification performance on the loess of soil solidifying agent and its influencing factors,direct shear and permeability tests for solidified loess with different solidifying agent content,curing age,compactness and water content are conducted in this paper.The result indicates that along with the increase of the solidifying agent content,compactness and curing age,the shear strength,cohesion and internal friction angle are increased while the permeability coefficient is decreased,and the two kinds of solidified soil have the similar rules.The LUKANG soil solidifying agent improves the loess mechanical properties better than CONAID.It is suggested that LUKANG soil solidifying agent can be used in practical engineering,the suitable mixing amount is 0.01%,the curing age should be prolonged and the compactness should be increased as possible to achieve better anti-shear and anti-permeability effects.

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