擦角(δ)第一破裂角(θ1)第二破裂角(αi)与平台夹角(α)第一破裂面位置(m)第二破裂面位置(m)λa墙顶内边与荷载间距(m)35.0017.5027.5027.5038.093.441.550.590.50五:下墙破裂面计算ψθA0B0R1辅助计算tanθ下墙破裂面位置(m)第一破裂面判断41.1933.5830.148.006.501.540.665.76满足六:土压力计算1:上墙土压力计算E1a(t)E1x(t)E1y(t)上墙土压力臂ZX’(m)上墙土压力臂ZY’(m)上墙土压力臂ZX(m)上墙土压力臂ZY(m)6.503.005.761.000.524.903.082:下墙土压力计算E2a(t)E2x(t)E2y(t)下墙土压力臂Z2X’(m)下墙土压力臂Z2Y’(m)下墙土压力臂Z2X(m)下墙土压力臂Z2Y(m)7.477.460.451.840.371.563.13七:挡土墙稳定性验算1:抗滑稳定性验算摩阻系数(f)容许系数[Kc]计算系数K判断0.401.303.53满足2:抗倾覆稳定性验算ΣMyΣM0ΣN容许系数[K0]计算系数K判断92.3426.3346.741.503.51满足前墙趾宽(DL)0.50挡土墙面坡(n)上墙背坡(n1)0.050.14顶面均布荷载q(t/m)荷载P与墙外边间距(m)0.400.40地基承载力σ(t)荷载P力臂Z3(m)25.001.23下墙底宽(B21)基础底坡(n3)前墙趾高(DH)前墙趾宽(DL)后墙趾高(DH)基础全宽(B3)下墙高(H2d)H3下墙高(H2)2.280.100.700.500.982.763.950.753.20上墙土体重量W4(t)上墙土体力臂Z4(m)挡土墙体积V(立方米)挡土墙重量W(t)7.723.5814.2232.71车道宽度L0(m)第一破裂面判断第二破裂面判断9.00满足满足