Journal of Conservation Science (보존과학회지)

The Korean Society Of Conservation Science For Cultural Heritage (한국문화재보존과학회)
권호 표지

Making Method of Deterioration Map and Evaluation Techniques of Surface and Three-dimensional Deterioration Rate for Stone Cultural Heritage

석조문화유산의 손상지도 제작방법과 표면 및 3차원 손상율 평가기법

  • Jo, Young-Hoon (Department of Cultural Heritage Conservation Sciences, Kongju National University) ;
  • Lee, Chan-Hee (Department of Cultural Heritage Conservation Sciences, Kongju National University)
  • 조영훈 (공주대학교 문화재보존과학과) ;
  • 이찬희 (공주대학교 문화재보존과학과)
  • Received : 2011.06.10
  • Accepted : 2011.09.05
  • Published : 2011.09.20
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Abstract

This study focus on the suggestion of standard legend, the process system on making method of deterioration map, the development of crack index (CI), and the evaluation techniques of surface and 3D deterioration rate for stone cultural heritage. The standard legends of deterioration forms were made using a common graphic program after crack, blistering, scaling, break-out, granular disintegration, and perforation were subdivided. The deterioration map improved accuracy and reliability on deterioration range using 3D digital restoration and high resolution photograph mapping technique. Also, quantitative deterioration evaluation of stone cultural heritage was carried out developing the crack index, and the 3D deterioration rate of a break-out part was calculated by virtual restoration modeling. As a quantitative deterioration evaluation of Magoksa Temple stone pagoda based on the results described above, the north face showed high deterioration rate of bursting crack (1.70), hair crack (1.34), scaling (20.2%) and break out (13.0%), and the 3D deterioration rate of first roof stone was 6.7%.

이 연구에서는 석조문화유산의 손상유형별 표준범례를 제시하고, 손상지도 작성방법에 대한 공정시스템을 구축하였으며, 균열지수 개발과 표면 및 3차원 손상율 평가기법을 제시하였다. 손상유형별 표준범례는 균열, 박리, 박락, 탈락, 입상분해 및 공동으로 세분한 다음 상용 그래픽 프로그램으로 제작하였으며, 손상지도는 손상 영역에 대한 정확도와 신뢰도를 높이기 위해 3차원 디지털복원과 고해상도 사진맵핑 기술을 적용하였다. 또한 균열지수를 개발하여 대상 석조문화유산의 물리적 손상도에 대한 정량평가를 수행하였고, 가상복원 모델링을 통해 탈락부의 부피와 3차원 손상율을 산출하였다. 이를 통해 마곡사오층석탑의 손상도를 정량적으로 평가한 결과, 전체적으로 북측면이 구조상 균열(1.70), 미세균열(1.34), 박락(20.2%), 탈락(13.0%)의 손상점유율이 높게 나타났으며, 1층 옥개석의 3차원 손상율은 6.7%로 산출되었다.

Keywords

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