APPLICATION OF GRAY CORRELATION METHOD IN THE DISEASE AND RISK ASSESSMENT OF THE SINGLE BUILDING OF THE MING DYNASTY GREAT WALL IN QINGHAI

In the world at present, while the site protection is a hot issue in the research of the protection of cultural relics, the quantification of earthen site, the correlation between diseases and risk assessment of soil sites are less studied. Based on the field investigation of 17 beacon towers of the Ming Dynasty great wall in Qinghai, the weight and relevance of collapse volume, undercutting volume, gully volume, fracture length, cave volume, surface stripping size, biodeterioration area 7 factors are analysed, and the risk assessment model of these single building is established through the grey correlation theory. On the basis of this model, the risk level of each beacon is finally determined.