• Title/Summary/Keyword: landslide soil-rock

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The Preliminary Analyses on Damage Types of Stone Hertage induced by Natural Hazard, Korea (석조문화재의 자연재해 피해양상 예비분석)

  • Yang, Dong-Yoon;Kim, Ju-Yong;Kim, Jin-Kwan;Lee, Jin-Young;Kim, Min-Seok;Yi, Sang-Heon;Kim, Jeong-Chan;Nahm, Wook-Hyun;Yang, Yun-Sik
    • The Korean Journal of Quaternary Research
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    • v.21 no.1
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    • pp.27-36
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    • 2007
  • The severe damage of cultural heritages induced by natural hazards like heavy rain has been dramatically increased since 1990. The number of the repair works of stone heritage of 2005 was six times as many as those of 1986 year. Especially the ratio of the repair works of Gyeongsang Province and Jeolla Province stood 63% of those of all over the country. Since 1990, the typhoons usually struck the southern part of Korea and went northward. The heavy damage of stone heritages in two provinces was caused by them. We made a preliminary survey the stone heritages that exposed to the natural hazards on the basis of repair works of them and a field survey. The analysis results indicate that the natural hazards such as landslide and soil disaster of the stone heritages related to a sloping surface stood 58% of all kind of natural hazards. The reasons are caused by the 59 % of all the stone heritages distributed in a sloping surface resulted in natural hazards like landslide and soil disaster. The bases of stone heritages can be easily eroded by the surface water with high energy induced by heavy rainfall. Most of the stone heritages like Maebul were engraved on a natural rock wall(outcrop). But some of them engraved on rolling stones are very vulnerable in a change of a base condition caused by erosion and ground subsidence and they can be tilted or fell down. The distribution of the stone heritages vulnerable in natural hazard is related to that of the rainfall distribution compounded five typhoons after 1990. Most of them are included in level two on the rainfall distribution map except those of Taean peninsula and some of Gyeonggi Province. They seem to be rather related to the rainfall distribution of the Typhoon Olga.

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