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建立了明确的定量评价滑坡剪出口的力学模型。当从抗滑段开始选取的若干计算垂直的抗滑稳定系数Ｋ≤１时，对应的平面或圆弧面与地面相交所形成的范围为剪出带范围，各计算垂直面中最小的Ｋ值所对应的剪切面为最危险的剪出面。
A clear and quantitative mechanical model of landslide shear outlet was established. When a certain number of vertical anti-sliding stability coefficients K≤1 calculated from the anti-skid section are selected, the range formed by the intersection of the corresponding plane or arc surface and the ground is the range of the cut-out band. Each minimum K value in the vertical plane The corresponding shear surface is the most dangerous cut surface.