Shear keys have been widely used in deep-sea engineering,but the mechanical mechanism of multiple bonds is still unclear,and there is still a lack of relevant norms at home and abroad to elaborate it in detail.In this paper,the numerical simulation method is used to make a tentative exploration on the stress situation of multiple shear bonds under the action of axial load with reference to the structural size of the Orchard Harbor wharf as an engineering example.The corresponding physical model test shows that the simulation results are of high accuracy.In addition,the distribution law of forces between the keys is obtained and the concept of distribution coefficient is put forward,which not only provides a direction for the design of multiple pairs of shear keys,but also lays a foundation for the analysis and study of the stress mechanism.