江西建材Issue(4)：29-31,38,4.
石灰与矿渣复合改良膨胀土力学特性及边坡支护效果研究
Research on the Mechanical Properties and Slope Support Effect of Expansive Soil Improved by Lime and Slag Composite
摘要
Abstract
To optimize and improve the performance of expansive soil,in this paper,a composite expansive soil of lime and slag was prepared.Compaction tests and unconfined compressive strength tests were conducted to systematically analyze the dry density,compressive strength and water stability coefficient of the composite expansive soil of lime and slag,determine the optimal ratio of the composite expansive soil of lime and slag,and evaluate its application effect.The results show that with the increase of the proportion of slag,the dry density of expansive soil keeps increasing and the optimal moisture content keeps decreasing.With the continuous increase in the proportion of slag,the unconfined compressive strength of expanded soil first increases and then decreases,and the water stability coefficient first stabilizes and then decreases.In conclusion,it is determined that the optimal proportion of slag in the lime and slag composite improved expansive soil is 0.6％.Practical experience shows that one year after the project was put into operation,all the indicators of the slope met the requirements of the specifications,and no cracks occurred.The application effect was good.关键词
边坡工程/膨胀土/石灰/矿渣/力学特性Key words
Slope engineering/Expansive soil/Lime/Slag/Mechanical properties分类
建筑与水利引用本文复制引用
徐莹莹..石灰与矿渣复合改良膨胀土力学特性及边坡支护效果研究[J].江西建材,2026,(4):29-31,38,4.基金项目
2024年度广西高校中青年教师科研基础能力提升项目《桂西南地区特殊性岩土边坡防护技术应用与研究》(项目编号:2024KY2000). （项目编号:2024KY2000）
