[1]许 健1,2,牛富俊2,等.东北粘质黄土有害毛细上升高度预测研究[J].西安建筑科技大学学报:自然科学版,2011,43(04):501-506.[doi:DOI:10.15986/j.1006-7930.2011.04.010]
 ,,et al.Forcast on the effect height of frost damageof clayey loess in Northeast China[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,43(04):501-506.[doi:DOI:10.15986/j.1006-7930.2011.04.010]
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东北粘质黄土有害毛细上升高度预测研究()
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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:
43
期数:
2011年04期
页码:
501-506
栏目:
出版日期:
2011-08-31

文章信息/Info

Title:
Forcast on the effect height of frost damage
of clayey loess in Northeast China
文章编号:
1006-7930(2011)04-0501-06
作者:
许 健1牛富俊2牛永红2侯仲杰3
(1.西安建筑科技大学土木工程学院,陕西西安710055;2.中国科学院寒区旱区环境与工程研究所
冻土工程国家重点实验室,甘肃兰州730000;3.长安大学特殊地区公路工程教育部重点实验室,陕西西安710064)
Author(s):
XU Jian1NIU Fu-jun2NIU Yong-hong2HOU Zhong-jie3
(1.College of Civil Engineering,Xi′an University of Architecture and Technology,Xi′an 710055,China;
2.State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and
Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China;
3.Key Laboratory for Special Area Highway Engineering of Ministry of Education,
Chang’an University,Xi′an 710064,China)
关键词:
粘质黄土含水量水分迁移有害毛细上升高度
Keywords:
clayey loesswater contentmoisture migrationeffect height of frost damage.
分类号:
中图分类号:TU445
DOI:
DOI:10.15986/j.1006-7930.2011.04.010
文献标志码:
A
摘要:
以沈哈高速铁路沿线的粘质黄土为研究对象,在恒温状态下进行了开放系统水分迁移试验,试验结果
表明:随着时间的推移,湿润锋面由底部逐渐向上迁移,含水量也由试件的底部向顶部逐渐减小,试验结束时
土柱中的含水量基本表现出由底部向顶部逐渐减小的趋势.基于上述试验终态时刻土体体积含水量沿试样
高度的分布,利用灰色理论预测模型GM(1,1)并结合室内冻胀敏感性试验资料确定出了东北粘质黄土的有
害毛细上升高度约为1.12m.在此基础之上,结合长春地区的最大冻深资料,计算出要保证粘质黄土不产生
冻胀,其距离地下水位的最小高度约为2.92m.
Abstract:
A moisture migration test on the unsaturated clayey loess along Shenyang-Harbin Express Railway was carried
out to investigate the water movement of soil in an open system with constant temperature conditions.The experimental
results show that over time the soakage side gradually rises and the water content by volume gradually decreases from the
bottom to the top of the specimen.In addition,the final water content basically decreases from the bottom to the top.
Furthermore,based on the final water content with the sample height,the effect height of forst damage of clayey loess in
Northeast China is about 1.12mby grey forcast model GM(1,1)and experimental data of frost susceptibility.Then this
height is used to compute the critical height of clayey loess to avoid the frost damage considering the maximum frozen
depth around Changchun City.The computed critical height is about 2.92m.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2010-10-20  修改稿日期:2011-06-27
基金项目:973计划前期研究专向课题基金资助项目(2010CB434813);国家高技术研究发展计划(863计划)基金资助项目
(2008AA11Z103);国家自然科学基金重点基金资助项目(41030741);中交股份重大科技研发基金项目(2006-ZJKJ-025);
西安建筑科技大学校人才科技基金项目(DBO1119)
作者简介:许 健(1980-),男,山东泰安人,讲师,博士,主要从事寒区岩土工程研究.
更新日期/Last Update: 2015-11-05