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低液限粉土微观结构试验研究

周乔勇, 熊保林, 杨广庆, 刘伟超

周乔勇, 熊保林, 杨广庆, 刘伟超. 低液限粉土微观结构试验研究[J]. 岩土工程学报, 2013, 35(zk2): 439-444.
引用本文: 周乔勇, 熊保林, 杨广庆, 刘伟超. 低液限粉土微观结构试验研究[J]. 岩土工程学报, 2013, 35(zk2): 439-444.
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ZHOU Qiao-yong, XIONG Bao-lin, YANG Guang-qing, LIU Wei-chao. Microstructure of low liquid limit silt[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 439-444.
Citation: ZHOU Qiao-yong, XIONG Bao-lin, YANG Guang-qing, LIU Wei-chao. Microstructure of low liquid limit silt[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 439-444.
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低液限粉土微观结构试验研究  English Version

  • 石家庄铁道大学土木工程学院,河北 石家庄 050043

基金项目: 国家自然科学基金项目（51178280）
详细信息
    作者简介:

    周乔勇(1979- )，男，讲师，工学硕士，主要从事岩土工程方面的教学和研究工作。E-mail: zhouqy_007@163.com。

  • 中图分类号: TU441

Microstructure of low liquid limit silt

  • School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

摘要

    摘要
  • 摘要: 土的工程性质从本质上来说是取决于其微观结构,是土体结构单元体性质的综合体现。利用扫描电子显微镜、矿物X衍射等设备对低液限粉土的微观结构进行了研究。通过微观结构分析从矿物成分和结构两方面来评价低液限粉土的工程特性。从而得到低液限粉土在不同的压实度状态下呈现不同的结构形式与联结形式,以及不同的排列状态需要依靠孔隙比由里到外展现出来。这样就可以借助于提高压实度来改变粉土的联结形式和改变粉土颗粒的排列顺序,进而提高低液限粉土的工程特性。
    Abstract: The engineering property of soils is in substance determined by their microstructure with embodies unit property of soils. Scanning electron microscope equipment and mineral X-ray diffraction equipment are used to study the microstructure of low liquid limit silt. The engineering property of the low liquid limit silt is evaluated from the mineral ingredient and the structure by virtue of microstructure. The low liquid limit silt presents different structural and coupling modes under different compaction degrees. Different arrangements of particles from inside to outside are characterized by the void ratio. So enhancing the compaction degree alters the coupling modes of silt and the arrangement sequence of silt particles so as to increase the engineering property of the low liquid limit silt.
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    • 参考文献(8)
  • [1] 温淑瑶, 杨德涌, 陈 捷. 膨润土及其酸化土、碱处理酸化土的X射线衍射特征及扫描电镜下的表面特征分析[J]. 矿物学报, 2001, 21(3): 453-456. (WEN Shu-yao, YANG De-yong, CHEN Jie. X-ray diffraction characterization of bentonite, acidation bentonite and alkalization bentonite and surface characters under scanning electron microscope[J]. Acta mineralogica sinica, 2001, 21(3): 453-456. (in Chinese))
    [2] 丁佩民, 张其林. 土中矿物的X射线衍射分析及在环境岩土工程中的应用[J]. 青岛建筑工程学院学报, 2002, 23(1): 12-15. (DING Pei-min, ZHANG Qi-lin. X-ray diffraction analysis of minerals in soil and its applicatons on geo-environmental engineering[J]. Journal of Qingdao Institute of Architecture and Engineering, 2002, 23(1): 12-15. (in Chinese))
    [3] 崔德山, 项 伟, JOACHIM Rohn. 离子土固化剂加固红黏土的X射线衍射试验[J]. 长江科学院院报, 2009, 26(9): 39-43. (CUI De-shan, XIANG Wei, JOACHIM Rohn. X-ray diffraction analysis of red clay reinforced by ISS[J]. Journal of Yangtze River Scientific Research Institute, 2009, 26(9): 39-43. (in Chinese))
    [4] 严春杰, 唐辉明, 孙云志. 利用扫描电镜和X射线衍射仪对滑坡滑带土的研究[J]. 地质科技情报, 2001, 20(4): 89-92. (YAN Chun-jie, TANG Hui-ming, SUN Yun-zhi. Study on the soil of slipping zone in landslides and its significance by scanning electron microscope and X-ray diffractometer[J]. Geological Science and Technology Information, 2001, 20(4): 89-92. (in Chinese))
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    [6] 王宝军, 张明瑞, 施 斌. 基于坡度坡向原理的黏性土扫描电镜图像颗粒定向性研究[J]. 岩石力学与工程学报, 2010, 29(增刊1): 2951-2957. (WANG Bao-jun, ZHANG Ming-rui, SHI Bin. Quantitative analysis of orientation distribution of soil grains based on slope-aspect theory[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S1): 2951-2957. (in Chinese))
    [7] 曹卫东, 商庆森, 宋修广. 低液限粉土路基压实机理与性能的研究[J]. 华东公路, 2003, 35(3): 55-57. (CAO Wei-dong, SHANG Qing-sen, SONG Xiu-guang. Compaction mechanism and property research of low liquid limit silt subgrade[J]. East China Highway, 2003, 35(3): 55-57. (in Chinese))
    [8] 唐延钦, 巩喜彪. 低液限粉土压实性状分析[J].公路交通科技. 2012, 29(1): 95-99. (TANG Yan-qin, GONG Xi-biao. Compaction property analysis of low liquid limit silt[J]. Journal of Highway and Transportation Research and Development, 2012, 29(1): 95-99. (in Chinese))
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出版历程
  • 收稿日期:  2013-06-17
  • 发布日期:  2013-11-24

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