[1]庄心善,李 凯,王 康,等.磷尾矿-玄武岩纤维改良膨胀土试验研究[J].湖北工业大学学报,2019,34(4):104-107.
　ZHUANG Xinshan,LI Kai,WANG Kang,et al.An Experimental Study on the Characteristicd of Improved Expansive Soil with Phosphorus Tailings- Basalt Fiber[J].,2019,34(4):104-107.
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磷尾矿-玄武岩纤维改良膨胀土试验研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
34卷
期数:
2019年第4期
页码:
104-107
栏目:
湖北工业大学学报
出版日期:
2019-08-30

文章信息/Info

Title:
An Experimental Study on the Characteristicd of Improved Expansive Soil with Phosphorus Tailings- Basalt Fiber
文章编号:
1003-4684(2019)04-0104-04
作者:
庄心善; 李 凯; 王 康; 王俊翔
湖北工业大学土木建筑与环境学院, 湖北 武汉 430068
Author(s):
ZHUANG Xinshan; LI Kai;  WANG Kang; WANG Junxiang
School of Civil Engin.,Architecture and Environment,Hubei Univ. of Tech.,Wuhan 430068,China
关键词:
膨胀土;  磷尾矿;  玄武岩纤维;  强度;  三轴试验
Keywords:
expansive soil;  phosphate tailing;  basalt fibre;  strength;  triaxial compression test
分类号:
TU 411
文献标志码:
A
摘要:
以湖北黄石某公路膨胀土为研究对象,在最大干密度和最佳含水率条件下,分别将不同比例磷尾矿和玄武岩纤维掺入膨胀土中进行室内试验研究。试验结果表明:适量磷尾矿能提高膨胀土的抗压强度和剪切强度,掺量为10%效果最佳; 玄武岩纤维对膨胀土强度影响较小,但能显著抑制其胀缩性,且掺量不宜过多,掺量为0.3%效果最佳; 通过三轴正交试验分析,得到不同掺量磷尾矿—玄武岩纤维改良膨胀土抗剪强度与法向正应力拟合关系式,确定磷尾矿、玄武岩纤维最佳混合掺量分别为10%、0.3%。
Abstract:
Taking the expansive soil of a highway in Huangshi, Hubei as the research object, based on maximum dry density and optimum moisture content, different proportions of phosphorus tailings and basalt fibers were added into the expansive soil respectively. The experimental results show that a proper amount of phosphorous tailings can improve the compressive strength and shear strength of the expansive soil, and the effect is best when the amount of doping is 10%; basalt fiber exerts little influence on the strength of expansive soil, but it can significantly inhibit its characteristics of shrinkage and expansion. And the amount of doping should not be too much. The best effect was achieved with an amount of doping at 0.3%. Through the analysis of three axis orthogonal tests, the fitting relationship between the shear strength and normal stress of the modified expansive soil with different contents of phosphorus tailing and basalt fiber is obtained, and the optimum mixing amount of phosphorus tailing-basalt fiber is 10% and 0.3%, respectively.

参考文献/References:

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备注/Memo

备注/Memo:
[收稿日期] 2018-09-19
[第一作者] 庄心善(1962-),男,河南淮阳人,湖北工业大学教授,研究方向环境岩土工程及边坡工程
[通信作者] 李 凯(1992-),男,湖北武汉人,湖北工业大学硕士研究生,研究方向膨胀土改良
更新日期/Last Update: 2019-08-25