H1 H2 B 0.5*(H1+2*H2)*(H2*1.155+B)- H2*H2*1.155*3/2 2.24 0.5 3.16 5.621625 H1 H2 B 0.5*(H1+0.1+2*(H2+0.1))*((H2+ 0.1)*1.155+B+0.231)- (H2+0.1)*(H2+0.1)*1.155*3/2 2.24 0.5 3.16 6.60498 H1 H2 B 2.24 0.5 3.16 挖 深 放坡系数 H1 H2 B H3 K 2.42 0.45 2.61 1.51 0.5 挖 深 H3 20.55789141 D、三桩承台土方（放坡，加 0.4） C、三桩承台土方不放坡（加 0.4） (0.5*(H1+0.4+2*(H2+0.4))*((H2+0.4)*1.155 +B+0.924)- (H2+0.4)*(H2+0.4)*1.155*3/2)*H3 13.959