山区高速公路边坡类型划分研究

Study on Classification of Highway Slope Types in Mountainous Areas

山区高速公路边坡,由于人为及自然因素,滑坡、坍塌等灾害时有发生,严重影响了高速公路的运营安全,进行高速公路边坡研究具有极其重要的作用。本文以云南省河口瑶族自治县新河高速公路为研究对象,在实地调查及分析的基础上,从人为扰动因素和公路地貌类型划分两个方面,通过ArcGIS10.0将新河高速公路边坡划分6类:低平原微丘区路堤边坡、低平原微丘区路堑边坡、低平原微区丘自然边坡、高平原微丘区路堤边坡、高平原微丘区路堑边坡,为实现山区高速公路边坡的实时水土流失预测和水土保持措施的布局调整奠定基础,为交通行业主管部门水土流失预警提供技术支持。

Due to man-made and natural factors,landslide,collapse and other disasters of highway slope types occur from time to time,which seriously affect the operation safety of expressway.So it is very important to study the slope of expressway.Taking Xinhe Expressway in Hekou Yao Autonomous County of Yunnan Province as the research object,on the basis of field investigation and analysis,the slope of Xinhe expressway is divided into six categories by arcgis10.0:embankment slope in low plain hilly area,cutting slope in low plain hilly area,natural slope in hilly area in low plain and micro Hill in high plain Embankment slope and cutting slope in high plain and hilly area.It can realize the real-time soil erosion prediction and layout adjustment of soil and water conservation measures of highway slope in mountainous area,and provide technical support for water and soil loss early warning of transportation industry competent department.