[1]毛雪松,张腾达,刘飞飞,等.基于土水特征曲线硫酸盐渍土渗透吸力试验研究[J].西安建筑科技大学学报(自然科学版),2019,51(01):27-31,38.[doi:10.15986/j.1006-7930.2019.01.005]
　MAO Xuesong,LI Yingging,LIU Feifei,et al.Experimental study of osmotic suction of sulphate saline soil baesd on soil-water characteristic curve[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(01):27-31,38.[doi:10.15986/j.1006-7930.2019.01.005]
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基于土水特征曲线硫酸盐渍土渗透吸力试验研究()
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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:
51
期数:
2019年01期
页码:
27-31,38
栏目:
出版日期:
2019-02-28

文章信息/Info

Title:
Experimental study of osmotic suction of sulphate saline soil baesd on soil-water characteristic curve
文章编号:
1006-7930(2019)01-0027-05
作者:
毛雪松; 张腾达; 刘飞飞; 李颖颖
(长安大学 公路学院,陕西 西安 710000)
Author(s):
MAO Xuesong;  LI Yingging;  LIU Feifei;  ZHANG Tengda
(Changan University, College of Highway, Xian 710064 , China)
关键词:
硫酸盐渍土; 总吸力; 渗透吸力; 体积含水率; 含盐量
Keywords:
sulphate saline soil;  total suction;  osmotic suction;  volumetric moisture content;  salinity
分类号:
TU398.9
DOI:
10.15986/j.1006-7930.2019.01.005
文献标志码:
A
摘要:
硫酸盐渍土地区路基盐胀等病害易发且种类多样，病害的发生与盐渍土中含水率和含盐量有很大关系，同时不同含水率和含盐量引起的吸力值变化对其也有较大影响.为研究硫酸盐渍土中吸力值与含盐量和体积含水率的关系，以室内配置硫酸盐渍土作为研究对象，通过滤纸法测定不同含盐量和体积含水率下的硫酸盐渍土的吸力值，并绘制不同含盐量条件下的土水特征曲线和建立渗透吸力与含盐量、体积含水率之间的关系.结果表明：在一定范围内，体积含水率与总吸力之间呈指数关系；渗透吸力=f（含盐量，体积含水率）的拟合模型确定为Linear model Poly 21.
Abstract:
Salt expansion and other diseases take place easily and are varied in the subgrade of sulphate saline soil areas. It is greatly related to the water content, salinity and the occurrence of diseases, and different water content and salinity causing the change in suction also has great influence on the occurrence of diseases. In order to study the relation among suction value, salinity and volumetric moisture content, the paper takes filter paper method to determine the suction value under different volumetric water content and salt content, and draws the soil water characteristic curve under different salt content. It established the relation among the osmotic suction, salinity and volumetric moisture content. The results showed an exponential relation between the volumetric water content and total suction within a certain range. The fitting model of “osmotic suction=f (salt content, volumetric water content)” is determined as Linear model Poly 21.

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备注/Memo

备注/Memo:
收稿日期:2017-12-30
修改稿日期:2019-01-15
基金项目:国家自然科学基金资助项目（211021180363）
第一作者：毛雪松（1976-），女，吉林珲春人，教授，博士，从事道路工程教学与研究工作.E-mail:xuesongmao@yahoo.com.cn
通信作者：张腾达(1994-)，男，硕士生，从事道路防灾减灾研究.E-mail：1154190749@qq.com
更新日期/Last Update: 2019-03-05