[1]刘小军,闫玉闯,罗扬,等.非饱和黄土水分迁移规律及迁移量的试验研究[J].西安建筑科技大学学报:自然科学版,2015,47(01):56-61.[doi:10.15986/j.1006-7930.2015.01.011]
　LIU Xiaojun,YAN Yuchuang,LUO Yang.Experimental research on the transfer’ law of water and transferring quantity in unsaturated loess[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(01):56-61.[doi:10.15986/j.1006-7930.2015.01.011]
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非饱和黄土水分迁移规律及迁移量的试验研究()
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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:
47
期数:
2015年01期
页码:
56-61
栏目:
出版日期:
2015-02-28

文章信息/Info

Title:
Experimental research on the transfer’ law of water and transferring quantity in unsaturated loess
文章编号:
1006-7930(2015)01-0056-05
作者:
刘小军;闫玉闯;罗扬;
西安建筑科技大学土木工程学院;
Author(s):
LIU Xiaojun;  YAN Yuchuang;  LUO Yang
School of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China
关键词:
非饱和黄土; 气态水迁移; 混合迁移; 含水量
Keywords:
unsaturated loess;  vaporous water transfer;  mixed water transfer;  water content
分类号:
TU444
DOI:
10.15986/j.1006-7930.2015.01.011
文献标志码:
A
摘要:
选取西安地区的黄土作为研究对象,在等温条件下对非饱和黄土进行了气态水迁移规律和气、液水混合迁移规律与迁移量的试验研究.基于试验结果,探讨影响水分迁移的因素,对比分析气态水迁移和气、液态水混合迁移情况,进而揭示两者的关系.试验结果表明:含水量梯度对气态水迁移的影响程度较含水量水平高,迁移时间越长,迁移量越大,但是迁移速率会逐渐降低;存在一个含水量界限,当黄土的含水量低于该含水量时,黄土中只存在气态水迁移,液态水迁移可忽略不计;当黄土的含水量大于该含水量时,黄土中同时具有气态水和液态水的混合迁移;同时发现,黄土中气态水迁移量在含水梯度一定的情况下,随含水量水平的提高而增加,但当含水量水平达到一定程...
Abstract:
The loess of Xi’an area as is selected research object, and an experimental research on the vaporous water transfer law, vaporous and liquid water mixed transfer law as well as transferring quantity of unsaturated loess was carried out under isothermal condition. Based upon the experiment results, the essay discusses the factors affecting water transfer, analyzes comparatively the conditions of vaporous water transfer and vaporous and liquid water mixed transfer. Furthermore, the paper reveals the relationship of them. The results show that the water content gradient produces a greater effect on vaporous water transfer than water content value，and the longer the transfer time, the larger the transferring quantity, but the slower the transfer rate; that there exists a water content limit and when it is higher that the water content of loess, vaporous water transfer is the only one in the loess (liquid water transfer can be neglected); and that when the water content of loess is higher than the limit, mixed water transfer of vaporous and liquid water can happen simultaneously. Under the condition of water content gradient being certain, vaporous water transfer quantity in the loess increases as the water content value. However when the water content value reaches a certain degree, vaporous water transfer quantity decreases instead.

参考文献/References:

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相似文献/References:

[1]李彦龙,苏立君,王铁行,等.考虑密度和含水率影响的非饱和黄土吸力强度的试验研究[J].西安建筑科技大学学报:自然科学版,2013,45(05):663.[doi:10.15986/j.1006-7930.2013.05.010]
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备注/Memo

备注/Memo:
收稿日期：2014-03-26 修改稿日期：2014-12-04
基金项目：国家自然科学基金项目（51408464）；陕西省教育厅专项(14JK1413) ；校人才科技基金项目（RC1365）
作者简介：刘小军 (1983-)，男，讲师，主要从事岩土及地下工程方面的研究工作．E-mail：liuyu8345@163.com
更新日期/Last Update: 1900-01-01