3차원 공간 정보를 활용한 영해기준점 구조물의 안전 진단 평가

Abstract

This study analyzed the maintenance status of territorial baseline point structures and the main applied technologies for maintenance and drew implications, and proposed a safety assessment for territorial baseline point structures that can systematically evaluate the management level of territorial baseline point structures. In analyzing the maintenance status, we identified the legal and institutional status, domestic and foreign maintenance cases, and spatial information construction technologies applicable to precise safety diagnosis of structures and maintenance of territorial baseline points, and also suggested the need for a customized evaluation process for territorial baseline point structures based on efficiency, objectivity, and safety according to the characteristics of the marine environment to solve problems based on technology analysis. The safety assessment model presented in this study was designed to consist of condition analysis, safety analysis, and comprehensive assessment. The condition analysis was organized to utilize 3D spatial data to supplement inspection efficiency and technician safety, and in the comprehensive assessment. a customized assessment model was developed in the consideration of operation evaluation of observation equipment and the degree of difficulty of inspection. In the next step, we conducted safety assessment experiments of the territorial baseline point structures by applying the proposed criteria, and analyzed the results compared with the results of the precision safety diagnosis performed previously. In this process, we suggested a plan to evaluate the condition of the structure using 3D spatial data and verified the results. As the results, the proposed safety assessment data showed similar levels of diagnosis results to the previous precision safety diagnosis data. The condition analysis using 3D spatial information can be quantitatively compared with the results of the visual inspection map, and showed excellent effects in some inspection items. The proposed safety assessment model is an optimal tool for measuring the maintenance level considering the characteristics of the territorial baseline point structures and can be utilized at the maintenance sites to improve inspection efficiency, data objectivity, and technician safety.