植被边坡稳定性的影响因素分析.pdfVIP

5 2 Vo.l 5 2009 12 Chinese Journal ofUnderground Space and Engineering Dec. 2009 * 植被边坡稳定性的影响因素分析 1 1 1 2 孙 红, 吴 刚 , 李 波, 王 宇 ( 1. , 2002 0; 2. , ) : 我国生态护坡理论研究主要集中在生态效益这一方面, 对于护坡 料的成型机 理植生机理护坡机理等研究不多, 理论远远落后于防护技术应用的发展本文采用科学软 件 CHASM (The combined hydrology and stabilitymodel)研究植被类型降雨填土 料内摩擦角 等因素对边坡稳定性的影响, 探究生态护坡工程的机理不同的植被类型对边坡稳定性的影 响程度不同植草提高边坡安全系数的效果比植树强, 草木结合种植的效果最好降雨强度 不同, 植被对安全系数的影响也不同当降雨作用没有超过植被的调节能力时, 边坡安全系数 基本在提高; 反之, 边坡安全系数会出现明显的下降植被对不同强度填料的边坡影响程度基 本类似 : 生态边坡; 稳定性; 植被; 机理; CHASM : P6 2. 22 : A : 1673- 0836( 2009) 2- 1837- 05 Influencing Factors of Slope Stab ility in E co logical Engineering 1 1 1 2 SUN Hong, WU Gang , LI Bo, WANG Yu ( 1. School of NavalArchitecture, Ocean and CivilEng ineering, ShanghaiJiaotong University, Shanghai 2002 0, China; 2. Institutef orMaterials esearch, School of Computing, Science Eng ineering, University of Saflord, Manchester, UK ) A bstract: In Ch ina, the theory on ecological protection, is main ly d iscussed about the ecological benefit, there is a lmi ited research on them odeling m echanism of m aterial, vegetation mechan ism and slope protection m echanism far beh ind the practical application. A sofwt are CHASM isused to analyze the influence of vegetation types, rainfal,l and strength of soil on the stab ility of ecological slope for investigating the m echan ism of ecological slope. The safety factors of slope are different depend ing on the type