摘要
生态植被护坡是一项工程应用技术,目前对其加固机理的研究却滞后于工程实践。故以假定植被根系强度和根系在岩土体中的分布规律均为已知的前提条件下,从微观入手建立植被根系—岩土相互作用的力学模型,对其锚固力学机理进行分析。分析表明,草本植物根系对边坡岩土体的加固效应可以看作三维加筋作用,木本植物垂直根系的加固效应可以简化为以主根为轴向、侧根为分支的全长粘结型"锚杆"来模拟其摩擦加筋作用,水平根系则通过侧根与岩土体的摩阻力来平衡边坡表层土体的剩余下滑推力作用。
The slope protection through ecological vegetation is a technology,whose mechanism of consolidation is not well known. The mechanic model of vegetation root system with soil is founded from the micro aspect and its mechanic mechanism related with consolidation is analyzed on the condition that the strength of root system of vegetation and the regularities of distribution in soil are known. The analysis shows that the consolidation effect of root system of herb in slope is simplified as the three-dimensional...
出处
《土工基础》
2009年第1期46-49,共4页
Soil Engineering and Foundation
关键词
边坡
生态护坡
作用机理
slope
ecology slope protection
mechanism
