植被固坡的力学初探与数值模拟

摘要

The slope protection with vegetation is a new technology of slope protection which is to sta- bilize slope and protect slope surfaces according mechanisms of conservation of both moisture and soll with vegetation and beautify ecological environment simultaneously. This paper focuses on the grass root improving soil reinforcement and slope stability, using theoretical method and finite ele- ment simulation to analyze the cause and influencing factors of the difference between vegetated slope and bare slope in shallow stability, deep stability and infiltration in order to provide guidance for the engineering application of vegetation in slope stability, soil and water conservation and ecological restoration.%植被固坡是利用植被涵水固土的原理来进行边坡加固及坡面防护，同时美化生态环境的一种新型护坡技术。着重分析草本植物根系土体加筋作用与边坡稳定性的关系，采用理论方法与有限元数值模拟对植被固坡进行分析，将表层滑动、整体滑动及降雨入渗等情况下的植被边坡与相应的裸露边坡对比，分析两者之间稳定系数差距产生的原因及影响因素，总结植被固坡效果和规律。为植被在边坡稳定、水土保持和生态修复等方面的工程应用提供理论指导。