寒区改良盐渍土路基边坡稳定性分析  

Stability Analysis of Improved Saline Soil Roadbed Slope in Cold Area

作　　者：张明 ZHANG Ming(Gansu Transportation Research Institute Group Co.,Ltd.,Lanzhou 730000,China)

机构地区：[1]甘肃省交通科学研究院集团有限公司,甘肃兰州730000

出　　处：《科技创新与生产力》2025年第3期71-73,77,共4页Sci-tech Innovation and Productivity

摘　　要：针对寒区路基边坡所特有的盐渍土问题,文章首先以不同比例和类型的改良剂为变量,对盐渍土进行处理,形成实验样本;其次对这些样本进行严谨的直剪试验,以此试验数据为基础,在专业的地质模拟软件Geo-studio中运用极限平衡分析方法,构建详细的土样模型,通过求解得到路基边坡的稳定系数。该研究深入探讨了改良剂不同掺量和混合比例对盐渍土路基稳定性的影响模式。结果显示,改良后的盐渍土显著提升了路基边坡的填充性能。In view of the problem of saline soil unique to the roadbed slope in cold area,this paper first treats saline soil with different proportions and types of improvers as variables to form experimental samples;secondly,rigorous direct shear tests are conducted on these samples,and based on the experimental data,the limit equilibrium analysis method is applied in Geo-studio,a professional geological simulation software,to build a detailed soil sample model,and the stability coefficient of the roadbed slope is obtained by solving it.The influence mode of different additives and mixing ratio on the stability of saline soil roadbed is studied.The results show that the improved saline soil significantly improves the filling performance of the roadbed slope.

关 键 词：寒区路基 边坡稳定性 改良盐渍土 

分 类 号：U416.168[交通运输工程—道路与铁道工程] U416.14[建筑科学—岩土工程] TU448[建筑科学—土工工程] P642.13[天文地球—工程地质学]