Discussion on a new operation scheme of shiplocks at tidal reach of the Yangtze Delta

It's necessary to design a new scheme of entrance shiplock layout and operation,with the rapid increase of ships trough the lock at tidal reach of the Yangtze Delta.Based on the operation features and existing problems of Nantong shiplock,it's proposed that a new lock-head be increased at the downstream of the lock,which makes the existing lock has 3 lock-heads,2 chambers and 2 approach channels.A new operating way and main technical requirement is given.