›› 2016, Vol. 30 ›› Issue (3): 391-394.

• 工程实录 • 上一篇    下一篇

非饱和黄土剪切特性的试验研究

太 俊   

  1. (天津市市政工程设计研究院,天津 300051)
  • 收稿日期:2015-12-21 修回日期:2015-12-31 出版日期:2016-06-20 发布日期:2016-06-21
  • 作者简介:太 俊(1990-),男,助理工程师,研究方向为特殊土的力学特性。

Experimental Study on the Shear Characteristics of an Unsaturated Loess

TAI Jun   

  1. (Tianjin Municipal Engineering Design & Research Institute Co., Ltd., Tianjin 300051)
  • Received:2015-12-21 Revised:2015-12-31 Online:2016-06-20 Published:2016-06-21

摘要: 对渭南地区回填黄土进行不同含水率重塑后直剪试验,得到其抗剪强度以及强度参数。结果表明,相同围压下抗剪强度随含水量的增大而减小,粘聚力随含水量呈先增大后减小的趋势,内摩擦角随含水量线性减小。天然含水率下直剪试验的剪切速率对重塑土的强度参数有一定影响。

关键词: 回填黄土, 含水量, 剪切速率, 强度

Abstract: The remolded loess samples from Weinan backfill sites were directed shear tested under various moisture contents. The results indicate that, under the same normal pressure, the shear strength of loess soil sample decreases with the moisture content increase. The cohesion initially increases with moisture content and decreases at higher water contents. The internal friction angle reduces with the increase of moisture content. The natural moisture content has large impact on the properties of remolded loess.

Key words: Backfilling Loess, Moisture Content, Shearing Rate, Shear Strength