Study On Hydraulic Characteristics Of Inertial Water Conveyance System With Long Corridor Of Ship Lock

As an important part of the transportation industry,water transportation undertakes most of the logistics and transportation tasks,and plays an important role in supporting the stable and rapid development of national economy,promoting the promotion of foreign trade and international competitiveness,and maintaining national economic security.With the rapid development of the state,and"The Belt And Road"policy implementation,water transportation development meet new challenges in"The 13th five-year plan"period,our state attaches more and more importance to water transportation career.The problem that every water conservancy person needs to face is how to make modern waterway transportation serve economic and social development better,boost all-round opening to the outside world.The ship lock,as the main building for passing the dam in the water transportation,undertakes the comprehensive tasks such as navigation and power generation,always plays a vital role.According to incomplete statistics,The number of locks built or under construction in China has reached more than 900^[1].Whether the hydraulic characteristics of the water conveyance system of ship lock meet the requirements is the key to its reasonable operation.To solve the above problems,a more comprehensive and in-depth study can be carried out through preliminary data research,mid-term hydraulic model test,numerical simulation calculation,and later summary and analysis.The layout of the water conveyance system of the ship lock is different,and the flow pattern of the water in the lock chamber is also different,which will affect the safety of the ship berthing in the lock chamber.Gushan lock adopts an equal-inertia water conveyance system of 2 sections and 4 longitudinal branch corridors with independent horizontal diversion on each side.In this paper,the hydraulic characteristics,pressure characteristics and mooring force of the water delivery system are studied through a 1:20hydraulic overall model test.The main research are as follows:?1?Summarized the development history and research progress of ship locks at home and abroad,and the selection of water delivery system for ship locks under different water head;?2?Established mathematical model,conduct numerical simulation calculation,and reached the optimal scheme of ship lock water conveyance system;?3?Combined with the overall hydraulic model test of gushan lock,adopted an innovative equal-inertia water conveyance system of 2 sections and 4 longitudinal branch corridors with independent horizontal diversion on each side,studied and analyzedthe hydraulic characteristics in the lock chamber,the pressure characteristics in the water transfer corridor and the berthing conditions of ships and fleets in the lock chamber.