香根草护坡稳定性效果浅析  

Preliminary Analysis of the Effects of Vetiver Grass for Stabilizing Slope

作　　者：张宏波[1] 姚环[1] 林燕滨 

机构地区：[1]福州大学土木工程学院,福州350002 [2]福州市公路局,福州350001

出　　处：《土工基础》2008年第1期52-55,共4页Soil Engineering and Foundation

摘　　要：植物护坡已成为边坡防护的重要组成部分。香根草具有根系强度高,生长快,适应性强等特点,通过茎叶绿篱作用及根系固土作用和微生态环境作用起到加固与防护边坡的作用。针对平潭县虎潮山滑坡治理工程种植香根草后土体物理力学特征参数的变化,说明香根草对该滑坡发挥出了明显的加固补强作用。采用Morgenstern-Price稳定系数法进行计算分析,结果表明采用香根草固土护坡,土坡的稳定性有明显的提高。Vegetation supported slope technology has become an important part of the slope protection. The vetiver grass has many characteristics, including high strength of roots, rapid growth and adaptability, etc.. The slope is reinforced and protected by fence function of stems and leaves, soil-reinforcing function of roots and mic-ecologic environmental function. From the changes of parameters of physical-mechanics of soil before and after planting vetiver grass in Huchao mountain landslide in Pingtan County, it is shown that the vetiver grass has obvious reinforcement functions for the landslide. The Morgenstern- Price stabilization coefficient method is used to calculate the stability of slope, which shows that stability of slope has been improved obviously after planting the vetiver grass.

关 键 词：香根草 护坡机理 Morgenstern-Price安全系数法 稳定性 

分 类 号：TU457[建筑科学—岩土工程]