›› 2012, Vol. 26 ›› Issue (1): 67-69.

• 工程实录 • 上一篇    下一篇

石灰处治膨胀土冻融循环试验研究

李自灵1, 金彦雯2   

  1. (1.中国水电顾问集团昆明勘测设计研究院勘察分院,昆明 650041; 2.武汉理工大学材料科学与工程学院,武汉 430070)
  • 收稿日期:2011-11-28 出版日期:2012-02-20 发布日期:2012-03-23
  • 作者简介:李自灵,男,1972年生,毕业于云南省水利水电学校,工程师,从事水利工程、岩土工程设计与施工。

The FreezeThaw Cycling Testing on Lime Treated Expansive Soils

LI Ziling1, JIN Yanwen2   

  1. (1.China Hydropower Consultant Group Kunming Kance Design & Research Institute Reconnaissance Branch, Kunming, 650041;2.School of Material Science and Engineering, Wuhan University of Science and Technology, Wuhan 430070)
  • Received:2011-11-28 Online:2012-02-20 Published:2012-03-23

摘要: 通过对冻融循环后的石灰处治膨胀土土样进行固结不排水三轴试验,研究了冻融循环对土样抗剪强度指标和抗剪强度的影响,建立了抗剪强度指标和抗剪强度与冻融循环次数之间的关系,分析了处治膨胀土冻融循环的破坏机理。

关键词: 处治膨胀土, 冻融循环, 粘聚力, 抗剪强度

Abstract: A series of consolidated undrained triaxial shear tests were performed on lime treated expansive soil samples experienced freezethaw cycles. The impact of freezethaw cycling on the shear strength parameters of treated soils has been studied. The relationship between the shear strength of the treated soils and the number of freeze thaw cycles is developed through the study. The failure mechanism of the lime treated expansive soil due to the freezethaw cycling is also presented in this paper.

Key words: lime treated expansive soil, freezethaw cycling, cohesion of soils, shear strength