교량가설단정 부력블록의 내구성 향상을 위한 대체품 개발에 관한 연구

Abstract

In this study, we identified the problems of the Buoyancy Blocks used in the Bridge Erection Boat. Also we conducted a cause analysis to establish the improvement plan, verify and test evaluation, and promote the development of alternative products. The Buoyancy Block mounted inside the Bridge Erection Boat can maximize the internal buoyancy performance when water enters the hull, and fills the empty space inside the hull to play an important role in minimizing the space where water can enter. Normal Buoyancy Block is made from PVC. By the way someone use recycled Buoyancy Blocks that don't guarantee the safety of users due to the deterioration. In order to solve these problems, we have promoted the development of alternative products through performance improvement, and selected materials that can be produced in Korea to reduce transportation costs required for procurement. If production and procurement are possible in Korea, maintenance restrictions will be lifted, and high-quality Buoyancy Blocks will be used to increase the satisfaction of field users. EPP, an eco-friendly material, was selected in accordance with the government's green national policy, and it had a property value equal to or greater than that of the existing product. In addition, the dimensions of the interior of the Bridge Erection Boat were remeasured to improve the problem of different dimensions between the drawing and the Buoyancy Blocks. In the future, if EPP, an eco-friendly material, is applied to Buoyancy Blocks to develop at a low cost and high quality, it is expected to contribute to improving the quality of military serviced goods and reducing the defense budget.