本文用线性绕射理论求解了平面进行波对圆柱墩群的作用力。理论推导中对墩群的几何布置不加限制,程序的编制又在几方面采取了择优的方案。这样使得计算程序能广泛适用于工程中的各种群墩结构,并且具有省时和简洁的特点。通过与实验的对比保证了计算结果的可靠性。 In this paper, the linear diffraction theory is used to solve the forces acting on the cylindrical piers by plane waves. In the theoretical derivation, there are no restrictions on the geometric arrangement of the pier groups, and the preparation of the program has also adopted a preferred scheme in several aspects. This makes the calculation program can be widely applied to various pier structures in the project, and it is time-saving and concise. The comparison with the experiment ensures the reliability of the calculation results.