Ground Improvement under Ship Collision Protection of Myodo-Gangyang Suspension Bridge Concerning of Sedimental Condition in Gyangyang Bay

광양만 퇴적이력을 고려한 묘도-광양간 현수교 충돌방지공 하부 지반보강

The suspension bridge between Myodo and Gwangyang is located in the main navigation channel to Gwangyang Harbor. So, there is need for the collision protection against large vessels. As ship collision protection, artificial island with concrete block quay wall is planned. The risk analysis and non-linear numerical analysis are introduced to consider the ship collision effects. In the Gwangyang bay area, there are some different sedimental conditions in clayey stratums. For a desirable design, we classify into four zones and 2 layers in each zone, and then determine suitable soil properties considering these zones. As a ground improvement under artificial island, DCM and SCP methods are Planned.