Effect of Different Ring Shear Tests on Residual Strength of Remolded Loess

WANG Wei; LUO Yasheng

doi:10.13961/j.cnki.stbctb.2018.06.027

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Effect of Different Ring Shear Tests on Residual Strength of Remolded Loess

- Effect of Different Ring Shear Tests on Residual Strength of Remolded Loess
- Bulletin of Soiland Water Conservation Vol. 38, Issue 6, Pages: 177-181(2018)
- 作者机构：
  
  1. 山西农业大学城乡建设学院, 山西太谷,030801
  2. 西北农林科技大学水利与建筑工程学院, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.06.027
  CLC：
- Published：2018
- 稿件说明：
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WANG Wei, LUO Yasheng. Effect of Different Ring Shear Tests on Residual Strength of Remolded Loess[J]. Bulletin of Soiland Water Conservation, 2018, 38(6): 177-181.
DOI：

WANG Wei, LUO Yasheng. Effect of Different Ring Shear Tests on Residual Strength of Remolded Loess[J]. Bulletin of Soiland Water Conservation, 2018, 38(6): 177-181. DOI： 10.13961/j.cnki.stbctb.2018.06.027.

摘要

[目的] 探究剪切方式对重塑黄土残余强度的影响，为黄土滑坡工程评价及治理提供科学依据。[方法] 利用环剪仪对泾阳重塑黄土进行环剪试验。[结果] 重塑黄土的峰值强度及残余强度均随着有效法向应力的增加而增大。随着有效法向应力的增加，土体达到残余强度所需的剪切位移减小；重塑黄土的变形表现为受剪压缩。单级剪得到的残余强度指标值与多级剪切得到的残余强度指标值的均值相近。[结论] 剪切方式建议首选单级剪切。

Abstract

[Objective] Exploring the influence of shearing method on the residual strength of remolded loess in order to provide a scientific basis for the evaluation and treatment of loess landslide engineering.[Methods] To explore the influence of different shear modes on peak strength

residual strength and deformation

ring shear test was carried out on Jingyang loess by ring shear apparatus.[Results] The peak strength and residual strength of remolded loess increased with the increase of effective normal stress

and the greater the effective normal stress

the easier the loess to achieve the residual strength. The deformation of remolded loess is shown as shear compression. The average value of residual strength index obtained by single-stage shear and multistage shear was close.[Conclusion] The shear method is recommended for single-stage shear.

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references

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