Abstract
The large scale rock falling had occurred on 22nd February, 2007 in the Cheongbuldong valley area of Seoraksan National Park, and the visiting pass had been closed for a while. Similar cases of rock falling have occurred in the latest years according to a great variety of crack, joint, weathering of solid rock and surface water caused by a recent climatic change in the Seoraksan National Park. In this study, rock falling energy was estimated and the movement of rockslide was analysed based on detailed investigation on large scale rockslides occurring at the spot 80 m high from the bottom of the valley. From analysing results, the effective management method for rock falling was proposed. The method could minimized the dangerous factors with no change of natural environment of the National Park.
2007년 2월 22일 설악산국립공원 천불동계곡 병풍교 부근에서 대규모 낙석이 발생하였고, 탐방로가 한동안 폐쇄되었었다. 설악산국립공원내에서는 기후변화로 인한 암반의 절리, 풍화와 지표수 등의 급격한 변화로 유사한 낙석사고 빈도가 잦아지고 있다. 이 연구에서는 계곡바닥에서 높이 80m 부근에서 발생한 대규모 낙석의 정밀조사에 근거하여 낙석의 거동을 분석하였고, 낙석에너지를 산정하였다. 분석결과로부터 설악산국립공원내의 자연환경을 훼손하지 않고, 위험요소를 최소화할 수 있는 효과적인 낙석관리방법을 제안하였다.
