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水泥加固不同地区软土的试验研究
引用本文:陈慧娥,王清.水泥加固不同地区软土的试验研究[J].岩土力学,2007,28(2):423-426.
作者姓名:陈慧娥  王清
作者单位:吉林大学,建设工程学院,长春,130026
摘    要:对不同地区软土经水泥加固后的强度形成特征进行了研究。进行直接剪切试验及无侧限抗压试验测定了水泥加固土的力学指标,发现不同地区的软土经水泥加固后力学性质存在很大差异,从试样的粒度成分、有机质含量及加固后试样的微观结构特征等方面对此进行解释。结果表明,试样的粒度成分及有机质含量会对加固效果产生很大影响,黏粒含量越大,有机质含量越高,对水泥加固土强度的形成越不利。为在用水泥进行不同性质的软土加固处理时采取合理的附加措施提供了理论依据。

关 键 词:水泥  软土  力学指标  粒度成分  有机质  微观结构
文章编号:1000-7598-(2007)02-0423-04
收稿时间:2005-04-11
修稿时间:2005-04-11

Laboratory study on consolidation effect of different area soft soils stabilized with cement
CHEN Hui-e,WANG Qing.Laboratory study on consolidation effect of different area soft soils stabilized with cement[J].Rock and Soil Mechanics,2007,28(2):423-426.
Authors:CHEN Hui-e  WANG Qing
Institution:School of Construction Engineering, Jilin University, Changchun 130026, China
Abstract:The strength formation features of different area soft soils consolidated with cement are studied through laboratory tests;and the mechanical indexes of cement consolidated soil are determined by means of direct shear test and unconfined compression test.It is found that there is great difference in the mechanical properties of different area soft soils after the stabilization with cement,which is explained from the aspects of granular metric composition,content of organic matter of all samples and the microscope structural characters of stabilized soils.Results show that the granular metric composition and the content of organic matter in soil have great influence on consolidation effect.The more clay particles and the higher organic content in soil,the more difficult is it to enhance the strength of cement consolidated soil.So it can be for reference to select reasonable additional measurements in projects of using cement to stabilize soft soil with different properties.
Keywords:cement  soft soil  mechanical index  granular metric composition  organic matter  microscope structure
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