1、一级站前池外侧挡水墙设计一、设计说明：使用参考书为水工设计手册水电站建筑物水工建筑物荷载设计规范二、基本资料所用参数：混凝土容重=24KN/m3水容重水=9.81KN/m3f=0.3三、 挡土墙的验算1、墙身自重G1=（B*H) 24*0.5*5.9 = 70.8 L1 3.32、墙身自重G2=（B*H) 24*0.5*3.5 = 54 L2 1.83、水重W=（B*H) 10*3.5*4.6 = 203.067 L3 1.955、扬压力水*B*h/2 10*4*4.6/2 = 112.815 L5 2.6006、墙前水压力P水*h*h/2 0.5*10*4.62 = 103.7898 L6
2、2.433四、抗滑稳定计算Kc =f*v/H = 0.622 1.05符合规范要求v = 215.052H = 103.7898五、抗倾覆稳定计算K0 =My/Mo = 1.331 1.05符合规范要求My = 726.821Mo = 545.874六、墙底压力的偏心及基底应力1.墙底压力的偏心e=B/2-(My-Mo)/v = 1.359B/5 = 0.880 e1.05符合规范要求v = 283.0743H = 103.7898五、抗倾覆稳定计算K0 =My/Mo = 1.798 1.05符合规范要求My = 884.331Mo = 491.723六、墙底压力的偏心及基底应力1.墙底压力的
3、偏心e=B/2-(My-Mo)/v = 0.563B/5 = 0.780 e1.05符合规范要求v = 366.9573H = 103.7898五、抗倾覆稳定计算K0 =My/Mo = 1.943 1.05符合规范要求My = 1321.668Mo = 680.170六、墙底压力的偏心及基底应力1.墙底压力的偏心e=B/2-(My-Mo)/v = 0.852B/6 = 0.867 e1.05符合规范要求五、抗倾覆稳定计算K0 =My/Mo = 3.28940812B/5 不符合规范要求2.基底应力u =v/B(1+6e/B) = 6.43571565d =v/B(1-6e/B) = 55.89228441、有水工况v = 230.0298H = 11.42816Kc =f*v/H = 6.03849964
