基于midas GTS/NX的紫穗槐灌木根系生态护坡固土效应研究  

Study on Ecological Slope Protection and Soil Consolidation Effect of Root System of Amorpha Fruticosa Shrub Based on Midas GTS/NX

作　　者：孙卓卓 SUN Zhuozhuo(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074

出　　处：《交通科技》2024年第3期11-16,共6页Transportation Science & Technology

摘　　要：基于广西省百色项目工程实际,通过midas GTS/NX软件对紫穗槐灌木幼期根系边坡(加筋边坡)与成年期根系边坡(锚固边坡)分别进行自然工况与连续降雨3 d工况(暴雨等级300 mm/d)的数值模拟,并利用有限元强度折减系数法求得边坡安全稳定性系数,对照裸露边坡比较分析2类根系边坡的护坡效应。研究表明,紫穗槐灌木根系不仅可以改善边坡浅层土体的应力与应变场,而且还可以提高土体的力学参数,并且在强降雨工况下使得边坡的安全稳定性得到增强。Based on the actual project of Baise Project in Guangxi Province,Midas GTS/NX software was used to conduct numerical simulation of root slope(reinforced slope)in young stage and root slope(anchored slope)in adult stage under natural conditions and continuous rainfall for three days with rainstorm level of 300 mm/d,respectively.The safety stability coefficient of slope was obtained by finite element strength reduction coefficient method,and the slope protection effect of two kinds of root slope was compared with that of exposed slope.The results showed that the roots of Amorpha fruticosa could not only improve the stress and strain field of the shallow soil,but also improve the mechanical parameters of the soil,which could enhance the safety and stability of the slope under heavy rainfall.

关 键 词：紫穗槐 降雨 加筋作用 锚固作用 有限元强度折减系数法 

分 类 号：U416.14[交通运输工程—道路与铁道工程]