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江苏科技信息 ›› 2016, Vol. 33 ›› Issue (20): 70-72.doi: 10.3969/j.issn.1004-7530.2016.20.027

• 论文 • 上一篇    下一篇

膨胀土蠕变试验特性研究

包嘉邈, 尹铎林, 尹亚虎, 吴纯奇   

  1. 中南林业科技大学土木工程与力学学院,湖南长沙,410004
  • 出版日期:2016-07-15 发布日期:2016-07-15
  • 基金资助:
    国家自然科学基金资助项目%项目编号509780897。

Study on Creep Test of Expensive Soil

Bao Jiamiao, Yin Duolin, Yin Yahu, Wu Chunqi   

  • Online:2016-07-15 Published:2016-07-15

摘要： 文章运用应力控制式直剪仪对娄益高速膨胀土进行了一系列的室内直剪蠕变试验研究，探讨了膨胀土在不同外界条件下的蠕变特性，并针对试验结果进行了分析。研究表明：娄益高速膨胀土具有明显的流变特性，含水率和剪应力水平对膨胀土的蠕变有一定的影响，剪切模量随剪应力水平和含水率的增加逐渐减小。

关键词: 膨胀土, 剪切蠕变, 剪切模量

Abstract: On the basis of a series of indoor tests for Louyi high speed expensive soil through the strain direct shear apparatus, the creep characteristics of expensive soil under different external conditions are discussed in the paper. The results show that, the Louyi expensive soil has obvious rheological properties; the water content and shear stress level have a certain influence on the creep of the expensive soil, and the shear modulus decreases with the increase of the shear stress level and water content.