ABSTRACT

Kyungin Canal, which is planned to be constructed, needs the installation of a lock gate to control the effect of tide, so that ships can go in and out the canal. The prearranged site of the canal in western coast has the large difference between ebb and flood of tide which extended approximately l0m. In order to operate the lock gate and fill/empty system, more careful attention is needed for the large difference of water levels between the both sides of the lock gate. Also more precise investigation is needed when the lock gate and chamber are designed. In present study, for the lock chamber in the lnchon side of Kyungin Canal, the hydraulic characteristics of lock chamber are analyzed using hydraulic model tests. Based on the tests, operation rules and mooring systems are investigated in order to design and manage lock chamber.

Introduction

The piling-up of Inchon harbor is in excess of its maximum limit, so its demurrage rate reaches about 40% in Korea. Furthermore this situation causes serious traffic congestion of the Metropolitan area and lowers a competitive price in physical distribution field because most of large cargo of the Metropolitan area is made through inland transportation via Inchon harbor. The alternative method may be considered in order to relieve inland traffic congestion and reduce transportation expenses by making large cargo transportation through coastal and inland water transportation by construction of a canal. Kyungin Canal to be built by such a need may be subject to much difficulty in smooth transportation of a ship because of the difference between ebb and flood of tide which extends approximately 10 m. Therefore, it is essential to install a gate which is able to control effect of a tide.

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