[1]许 健,王掌权,任建威,等.重塑黄土冻融过程抗剪强度劣化特性试验研究[J].西安建筑科技大学学报(自然科学版),2017,49(02):200-206.[doi:10.15986/j.1003-7930.2017.02.007]
　XU Jian,WANG Zhangquan,REN Jianwei,et al.shear strength deterioration of remolded loess under the freezing-thawing cycle[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,49(02):200-206.[doi:10.15986/j.1003-7930.2017.02.007]
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重塑黄土冻融过程抗剪强度劣化特性试验研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
49
期数:
2017年02期
页码:
200-206
栏目:
出版日期:
2017-04-28

文章信息/Info

Title:
shear strength deterioration of remolded loess under the freezing-thawing cycle
文章编号:
1006-7930(2017)02-0200-07
作者:
许 健1; 王掌权1; 任建威1; 袁 俊2;  3
(1. 西安建筑科技大学土木工程学院,陕西 西安 710055;2. 中国电力工程顾问集团 西北电力设计院有限公司,陕西 西安 710075;3. 中国科学院西北生态环境资源研究院冻土工程国家重点实验室,甘肃 兰州 730000)
Author(s):
XU Jian1;  WANG Zhangquan1;  REN Jianwei1;  YUAN Jun2; 3
(1.College of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xian 710055, China; 2. Northwest Electric Power Design Institute of Co. Ltd. of China Power Engineering Consulting Group, Xian, 710075, China; 3. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China )
Keywords:
remolded loess;  freeze-thaw action;  SEM;  shear strength
分类号:
TU444
DOI:
10.15986/j.1003-7930.2017.02.007
文献标志码:
A
Abstract:
The influence of freeze-thaw cycle on the microstructure and strength of xi’an Q3 remolded loess was studied by SEM and direct shear tests. The results show that during the freeze-thaw process, the growth of ice crystal results in obvious destruction of large particles aggregate. Freezing-thawing has caused more serious damage on the surface structure of soil with the increase of initial water content and freezing-thawing times. The cohesion of remolded loess exponentially decreases during the freeze-thaw process. The cohesion linearly decreases with the increase of water content, and linearly increases with the dry density increasing. The internal friction angle of remolded loess has no obvious change rule during the freeze-thaw process. Based on the indoor test results, a cohesion strength deterioration model of remolded loess was finally established

备注/Memo

备注/Memo:
收稿日期：2016-03-20稿：2017-03-21
基金项目：国家自然科学基金项目（51478385,51208409）冻土工程国家重点实验室开放基金资助项目（SKLFSE201312）
作者简介：许 健（1980－），男，博士，副教授，主要从事寒区岩土工程研究.E-mail：xujian@xauat.edu.cn

更新日期/Last Update: 2017-06-09