[1]贺建清,罗婉,蒋鑫,等.非饱和高液限红粘土土-水特征试验研究[J].自然灾害学报,2014,(06):249-255.[doi:10.13577/j.jnd.2014.0631]
 HE Jianqing,LUO Wan,JIANG Xin,et al.Experimental study on soil-water characteristics of red clay with unsaturated high liquid limit[J].,2014,(06):249-255.[doi:10.13577/j.jnd.2014.0631]
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非饱和高液限红粘土土-水特征试验研究
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
期数:
2014年06期
页码:
249-255
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
Experimental study on soil-water characteristics of red clay with unsaturated high liquid limit
作者:
贺建清 罗婉 蒋鑫 高文华 王磊
湖南科技大学 土木工程学院, 湖南 湘潭 411201
Author(s):
HE Jianqing LUO Wan JIANG Xin GAO Wenhua WAN Lei
School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
关键词:
高液限红粘土量测装置土水特征曲线滤纸法
Keywords:
high liquid limitred claymeasurement devicesoil-water characteristic curve(SWCC)filter paper method
分类号:
TU4
DOI:
10.13577/j.jnd.2014.0631
摘要:
基于滤纸法的测试原理,制作了一种新型基质吸力量测装置,用以研究干密度和温度对高液限红粘土土-水特征曲线的影响。结果表明:土中体积含水率越低,土的干密度越大,基质吸力随时间波动的幅度越大,达到平衡所需的时间越长。在测定该类土的基质吸力时,平衡时间以10d为宜。干密度和温度对高液限红粘土的土-水特征曲线有明显的影响,相同体积含水率条件下,干密度增大,温度升高,基质吸力减小。土的体积含水率与基质吸力的对数之间呈线性关系。
Abstract:
Based on the principle of filter paper method of unsaturated soil, a new matrical suction measurement device was made, and it was used to study the influence of dry density and temperature on the soil-water characteristics curve (SWCC) of high liquid limit red clay. The results indicate that, when the volumetric water ratio and the dry density increase, the fluctuant magnitude of matrical suction with time increases, and the time for matrical suction to reach an equilibrium is longer. The appropriate equilibrium time to measure matrical suction is 10d. Dry density and temperature have great effect on SWCC of high liquid limit red clay. Under the same volmetric water ratio, the matric suction decreases with the increase of dry density and temperature. The volumetric water ratio has a linear relationship to the logarithm values of matrical suction.

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相似文献/References:

[1]陈爱军,张家生.基于线弹性力学的非饱和红粘土裂缝开展分析[J].自然灾害学报,2013,(03):198.
 CHEN Aijun,ZHANG Jiasheng.Analysis of crack development of unsaturated red clay based on linear elasticity mechanics[J].,2013,(06):198.
[2]刘之葵,李永豪.不同pH值条件下干湿循环作用对桂林红粘土力学性质的影响[J].自然灾害学报,2014,(05):107.[doi:10.13577/j.jnd.2014.0514]
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备注/Memo

备注/Memo:
收稿日期:2013-10-21;改回日期:2014-3-3。
基金项目:国家自然科学基金资助项目(41272324);湖南省教育厅资助项目(12K103)
作者简介:贺建清(1964-),男,博士,副教授,主要从事路基填料改良方面的教学与研究. E-mail:hjqing2000@163.com
更新日期/Last Update: 1900-01-01