草本植物根系对边坡浅层稳定性影响研究  

Effect of herbaceous plant roots on stability of shallow soil in slope

作　　者：冯国建[1] 朱维伟[1] 

机构地区：[1]昆明学院城乡建设与工程管理学院,云南昆明650214

出　　处：《草原与草坪》2015年第4期23-26,共4页Grassland and Turf

基　　金：云南省高校优势特色重点学科(生态学)建设;云南省教育厅科学研究"公路边坡工程绿化与景观创意设计的可拓方法研究(2014Y385)";昆明学院校级"云南省护坡植物根系的分布形态及固土力学机理研究(XJL14012)"项目资助

摘　　要：为研究草本植物根系对边坡浅层稳定性的影响,在假设滑坡体为长方体的条件下,通过对植物根系加固边坡的力学原理进行分析,推导了植物根系对边坡浅层稳定性的安全系数公式,并计算分析了坡度、滑坡体尺寸以及根土面积比对边坡稳定性的影响。结果表明:随着边坡坡度及滑坡体尺寸的增加,边坡的稳定系数将减小。并且,植物护坡的坡体安全系数要大于无防护坡体的安全系数。随着根-土面积比的增大,坡体的稳定系数逐渐增加,说明植物根系能增加边坡的稳定性。To study the effect of herbaceous plant roots on slope stability under the condition assuming the landslide as rectangle,the mechanics principle of slope reinforced by herbaceous plant roots were analyzed,and the plant roots on the stability of shallow slope safety coefficient formula was deduced,and then the influence of slope on grade,size of landslide,area ration of roots with soil was calculated and analyzed.The results showed that with the increase of grade and the size of landslide,the stability factor of slope decreased.And the slope safety coefficient with plant protection was greater than the safety factor without plant protection.With the increase of the area of root and soil,the stability of the slope coefficient increased

关 键 词：安全系数 坡度 滑坡体尺寸 根-土面积比 

分 类 号：U416.14[交通运输工程—道路与铁道工程]