The construction of new shipping hub or the overhaul of single-line ship lock on navigable waterway often requires the suspension of navigation for construction.Setting of navigation hole in the sluice that matches the ship lock can be used as a traffic maintenance plan during the construction or overhaul of the ship lock.Taking the Paihekou regulating sluice project as an example,we propose a plan of opening the middle hole of the regulating sluice as a temporary navigation hole with a clear width of 13.3 m to meet the continuation of the existing shipping during the construction of Paihekou ship lock.In order to study the feasibility of navigation by the temporary navigation hole,we analyze and calculate the ship impact force by numerical simulation,check the anti-collision performance of the sluice,and propose the ship size and ship lock control conditions that can be navigated through the temporary navigation hole by means of full-scale ship trial and ship maneuvering simulation test.The results show that under conditions of low wind speed and flow velocity,the temporary navigation hole of the regulating sluice allows ships with a width of less than 13 m to pass through the ship lock slowly and carefully during the day.Navigation is prohibited when the wind force is above level 4 and the flow velocity is faster than 0.5 m/s.