多花木兰和双荚决明分叉根拔出过程中根土界面摩擦特性
Friction characteristics of root-soil interface during branches root pull-out of Indigofera amblyantha and Cassia bicapsulafis
[意义]根系的不同分叉形态和分叉角度在拔出过程中释放的力对根系固土起重要作用,是根系固土力学性质的前置阶段。[方法]该研究以边坡绿化常用灌木多花木兰和双荚决明为研究对象,采用拉拔试验方法,研究分叉角度(0°～90°)对根系拉拔摩擦力学性质的影响。[结果]试验结果表明,分叉根有 3种拔出破坏模式:完全拔出、主根断裂和侧根断裂,多花木兰和双荚决明破坏模式以完全拔出为主,分别占总样本的 82.61%和 86.05%。3种破坏模式下的拉拔力与相对位移曲线…查看全部>>
[Objective]The front stage of root system can be the root branch morphology and different angle of release in the process of pull force of root stabilization and strengthening soil in soil mechanics properties.[Method]In this study,the pull-out experiment was carried out to clarify the effect of branch angle on the frictional mechanical properties of root pulling using SK-WDW-2 microcomputer.The experimental subjects were taken as the slope greening shrubs I…查看全部>>
吴文丽;潘露;唐丽霞;廖拉拉;阮仕航;
failure mode friction characteristics test root branch angle initial sliding load
306-307 / 2
评论