Abstract: In this paper, the flow state around spurs and the basic theories for local scour of spurs are discussed. And the formula of local scour is obtained as h_B=[(3(n+1)/n)(h/3D_n)^0.75(U₀/U_s)D_n-h]K_θK_m According to experiment data the factors of K_m, K_θ are given.

摘要： 本文讨论了丁坝周围的水流状态和丁坝局部冲刷机理,导出了丁坝局部冲刷计算公式:h_B=[(3(n+1)/n)(h/3D_n)^0.75(u₀/u_s)Dn-h]K_θK_m根据实验资料给出了公式中的系数K_θ和K_m值。