坡形要素变量商与土质路堑边坡稳定系数关系研究  

Study on the Relationship between the Variable Quotient of Slope Factors and Stability Coefficient of Soil Cutting Slope

作　　者：曹松傑[1] CAO Songjie(CCCC First Highway Consultants Co.,Ltd.,Xi'an 710065,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安710065

出　　处：《路基工程》2021年第6期114-118,共5页Subgrade Engineering

摘　　要：以黏性土路堑高边坡为研究对象,确定了标准边坡模型,通过对不同坡形要素与标准边坡模型所对应的坡形要素值得到的变量商与所对应的边坡模型稳定系数关系进行曲线拟合;从定量角度研究不同坡高、不同分级高度及不同平台宽度与土质路堑边坡稳定系数间的关系,提出了坡形要素变量商的概念,使不同坡形要素与稳定系数的拟合公式物理意义有了正确解释。分析结果表明:坡高及分级坡高要素与边坡稳定性呈单调递减关系,平台宽度要素与边坡稳定性呈单调递增关系。Taking the high cutting slope of cohesive soil as the research object,the standard slope model is determined,and the relationship between the variable quotient of the slope factor values corresponding to different slope factors and the standard slope model and the stability coefficient of the slope model is fitted by the curve.In order to quantitatively study the relationship between different slope heights,different grading heights and different platform widths and the stability coefficient of soil cutting slope,the concept of variable quotient of slope factors was put forward,so that the physical meaning of the fitting formula between different slope factors and stability coefficient could be explained correctly.The analysis results show that the slope height and the factors of graded slope height have a monotonically decreasing relationship with the slope stability,while the platform width has a monotonically increasing relationship with the slope stability.

关 键 词：边坡工程 变量商 标准边坡模型 拟合曲线 高路堑边坡稳定性 

分 类 号：U416.13[交通运输工程—道路与铁道工程]