根土复合体增强矿区排土场边坡抗剪强度试验研究

刘伟,闫晓宇,刘庆朋,孙欣然

Experimental Study on Shear Strength of Dump Slope in Mining Area Enhan-ced by Root-Soil Composite

Wei LIU,Xiaoyu YAN,Qingpeng LIU,Xinran SUN

表3 不同主根含量土样的抗剪强度回归模型

Table 3 Shear strength regression model of soil sample with different main root content

试样主根含量/根 线性回归方程 内摩擦角/（°） 内摩擦角平均值/（°） 黏聚力/kPa 黏聚力增幅/倍 0 y =0.0422x+4.720 2.42 3.06 4.72 - 5 y=0.0769x+20.187 4.40 20.19 3.28 10 y=0.0346x+26.227 1.98 26.23 4.56 15 y=0.0601x+30.363 3.44 30.36 5.43