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固化土结构形成及强度增长机理试验

宁建国 黄新

宁建国, 黄新. 固化土结构形成及强度增长机理试验[J]. 北京航空航天大学学报, 2006, 32(01): 97-102.
引用本文: 宁建国, 黄新. 固化土结构形成及强度增长机理试验[J]. 北京航空航天大学学报, 2006, 32(01): 97-102.
Ning Jianguo, Huang Xin. Experiment on structural formation and mechanism of strength increasing of stabilized soil[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(01): 97-102. (in Chinese)
Citation: Ning Jianguo, Huang Xin. Experiment on structural formation and mechanism of strength increasing of stabilized soil[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(01): 97-102. (in Chinese)

固化土结构形成及强度增长机理试验

基金项目: 国家自然科学基金资助项目(50278007)
详细信息
    作者简介:

    宁建国(1975-),男, 黑龙江鹤岗人, 博士生, ningjianguo@sohu.com.

  • 中图分类号: TU 528.042

Experiment on structural formation and mechanism of strength increasing of stabilized soil

  • 摘要: 根据固化土实际固化过程,提出一个新的固化土结构模型,即固化土结构形成主要由固化剂胶结土颗粒和填充孔隙两部分构成.根据这一结构模型,以粉砂土作为研究对象,用水泥作为固化剂,由理论计算得出的固化土中胶结土颗粒和填充孔隙所对应的固化剂用量与由试验得出的相应固化剂掺量相当吻合,且基于该固化土结构模型,可以对固化土抗压强度增长规律与固化剂掺量相互关系等试验现象给予较好的解释.另外,通过用膨胀剂代替上述固化剂中用于填充孔隙的水泥掺量,以及减少和增加固化剂中水泥掺量,验证了土颗粒胶结和孔隙填充对固化土结构形成及强度增长的作用,并指出孔隙填充对固化土抗压强度提高起重要作用.

     

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出版历程
  • 收稿日期:  2005-02-01
  • 网络出版日期:  2006-01-31

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