Main Influence Factors on Structural Property Changes of Unsaturated Loess

LUO Ya-sheng; XIE Ding-yi; LI Peng

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Main Influence Factors on Structural Property Changes of Unsaturated Loess

- Main Influence Factors on Structural Property Changes of Unsaturated Loess
- Bulletin of Soiland Water Conservation Vol. 24, Issue 2, Pages: 36-39(2005)
- 作者机构：
  
  1. 西北农林科技大学水建学院, 陕西杨凌,712100
  2. 西安理工大学岩土所,陕西,西安,710048
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2005
- 稿件说明：
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LUO Ya-sheng, XIE Ding-yi, LI Peng. Main Influence Factors on Structural Property Changes of Unsaturated Loess[J]. Bulletin of Soiland Water Conservation, 2005, 24(2): 36-39.
DOI：

LUO Ya-sheng, XIE Ding-yi, LI Peng. Main Influence Factors on Structural Property Changes of Unsaturated Loess[J]. Bulletin of Soiland Water Conservation, 2005, 24(2): 36-39. DOI：

摘要

黄土是一种典型的结构性土

对黄土结构性的研究是土结构性研究的重要组成部分

有助于土结构性研究的进一步深入和向实用转化。通过非饱和黄土(原状黄土和人工结构性黄土)的侧限压缩试验资料

探讨了土结构性的各主要因素对非饱和黄土结构特性变化的影响。分析结果表明

随着垂直压力、含水率和密实程度的增长

非饱和黄土的结构性表现出逐渐减弱的趋势;水泥含量的增加对黄土的结构性起到了一定的加强作用;黏粒含量对黄土结构性的影响不是单一的

黏粒含量过高或过低都难以得到较强的结构性。

Abstract

Loess is a typically structured soil.The study on loess soil structure is an important aspect of soil structureresearch

contributing to the broader understanding of soil structural properties. This paper draws on primary data collected from confined compression tests of unsaturated loess

including intact loess and anthropogenic modified loess

and discusses the key influences on changes in the st ructural properties of unsaturated loess. Research results indicate that increasing vertical pressure

increasing water content and increasing soil density promote gradual structural weakening of unsaturated loess; and the structural integrity of the loess is reinforced in some instances by the increasing of cementing agents. Other important findings are that the key influences on loess structure are not uniform across loess regions

and that achievement of higher loess structural integrity is difficult under very high and very low clay content.

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