摘要
通过在不同的初始含水率及干密度下,对土样喷入一定质量不同浓度的硅酸钾溶液,改良土体并进行剪切试验,探讨硅酸钾溶液改良土的抗剪强度及其指标的变化规律。结果表明:初始含水率对硅酸钾溶液改良土的黏聚力影响最大,干密度对改良土的内摩擦角影响最大;黏聚力随硅酸钾溶液浓度的增加呈上升趋势,随初始含水率的增加呈下降趋势;内摩擦角随硅酸钾溶液浓度的增加总体呈增加趋势,随初始含水率的增加呈减小趋势。
In this paper,the soil samples were improved by spraying potassium silicate solution with certain mass and different concentration under different initial moisture content and dry density,and the shear test was carried out to explore the change law of shear strength and its indexes of the improved soil by potassium silicate solution.The result shows that,the initial water content has the greatest influence on the cohesion of the potassium silicate solution improved soil,while the dry density has the maximum effect on the internal friction angle of the improved soil.The cohesion takes an upward tendency with the increase of potassium silicate solution concentration,and downward tendency with the rising of initial water content.On the whole,the internal friction angle becomes larger with the increase of potassium silicate solution concentration,and smaller with the rising of initial water content.
作者
刘晨景
LIU Chenjing(Tianjin Institute of Transportation Science,Tianjin 300000,China)
出处
《路基工程》
2025年第3期62-66,共5页
Subgrade Engineering
关键词
改良土
硅酸钾溶液
抗剪强度
极差分析
方差分析
improved soil
potassium silicate solution
shear strength
range analysis
variance analysis
