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假设θ是常量,方程(12)和(13)简化为一个方程:∑Q=O(14)整体边坡力短也是平衡的,因此总力矩关于任意点0一定等于零(图6)。∑Q·cos(θ—α)(r—h_Q·cosα)=0(15)或∑{Q·r·cos(θ—α)-Q·h_Q·cosα·cos(θ—α)}=0(16)这里Q·h_Q通过总体条柱底面中心力距和而得。
Assuming that θ is a constant, Eqs. (12) and (13) are reduced to an equation: ΣQ = O (14) The overall slope force is also short and therefore the total moment must equal zero at any point 0 (Figure 6). Σ Q · cos θ - α r - h_Q · cos α = 0 or Σ Q ⋅ r ⋅ cos θ - α - Q ⋅ h_Q cos α ⋅ cos θ - α 0 (16) where Q · h_Q is obtained from the sum of the center distance of the overall bar bottom surface.