有机质污染红黏土在水泥加固条件下的室内试验研究  

EXPERIMENTAL STUDY ON INDOOR RED CLAY OF THE ORGANIC MATTER POLLUTION IN THE CEMENT REINFORCEMENT CONDITIONS

作　　者：刘宝臣[1] 李懿[1] 罗东生[1] 邱孟尧 廖明强 

机构地区：[1]桂林理工大学土木与建筑工程学院,广西桂林541004 [2]重庆市水文水资源勘测局,重庆401122

出　　处：《工业建筑》2013年第S1期658-660,共3页Industrial Construction

基　　金：广西自然科学基金重点项目(2010GXNSFD013011)

摘　　要：基于有机质对红黏土物理力学性质的影响,在水泥加固条件下通过三轴试验,探讨有机质含量、水泥掺量、含水率和抗剪强度指标之间的关系,并对试验结果进行回归分析。研究结果表明,随着有机质和水量的增加,水泥土的抗剪强度不断减小;而水泥掺量的增加,则使得抗剪强度逐渐增大。但是,当各影响因素超过一定值时,变化幅度都在减缓;并且在相同试验条件下,外加剂的使用可以提高c、φ值。Based on the impact of organic matter on the physical and mechanical properties of the red clay,using triaxial test under cement reinforcement conditions,it was explored the correlation among organic matter content,the cement content,moisture content and shear strength parameters,and the regression analysis of the test results was done.The results show that with the increase in organic matter and water,the shear strength of soil-cement decreases;the increase in cement content can make the shear strength gradually increase.However,when various influencing factors exceed a certain value,the change in amplitude slows down;and under the same experimental conditions,the use of admixtures can improve the c and φ values.

关 键 词：水泥掺量 有机质含量 含水率 

分 类 号：TU411[建筑科学—岩土工程]