Geophysical Explorations for Safety Analysis of Bangeosan-Maaebul(Stone Relief Bhaisajyaguru triad at Mt. Bangeosan)

방어산 마애여래입상의 안전진단을 위한 지구물리탐사

  • O, Seon-Hwan ;
  • Seo, Man-Cheol
  • 오선환 ;
  • 서만철
  • Received : 0
  • Accepted : 0
  • Published : 0


Seismic refraction and electrical resistivity surveys were conducted in Bangeosan Maaebul site located in Haman, Kyungnam, in order to present geophysical safety analysis method for masonry cultural properties. Seismic refraction exploration revealed that the ground was composed of three layers in term of seismic wave velocity; the upper, medium, and lower layers. The low velocity ranging from 308 to 366 m/sec in upper layer suggests weathered soil, the intermediate velocity from 1906 to 2090 m/sec in the medium layer indicates weathered rocks, and the high velocity from 5061 to 5650 m/sec in the lower layer implies extremely hard rocks. Our seismic result suggests that the upper and medium layer around the Maaebul should be reinforced to support the construct. The result of electric resistivity survey shows that there exists a low resistivity zone, ranging from 131 to 226 Ohm-m, at the right side of the Maaebul with the direction of NE-NNE. This area is the weakness zone as it plays role of the underground water passage in rainy season.


  1. 지질공학원론 김성균;김영화;박창업;서만철;송무영;장보안;정상용;조봉곤
  2. 지질학회지 v.30 서울지역의 자연환경 변화에 관한 연구;남산화강암의 풍화에 관한 환경물학적 연구 김수진;이민성;김원사;이수재
  3. 문화재 상세정보 방어산마애불 문화재청
  4. 응용지구물리학 민경덕;서정희;권병두
  5. 충청남도, 조사연구보고서 충남지역 석조문화재의 현황과 보존대책 최석원;윤용혁;서만철;김광훈;이찬희
  6. 국립지질조사소 의령도폭 지질도(1:50,000) 및 설명서 최유구;김태열
  7. In: Origin and distribution of elements The major element geochemistry and the mineralogical evolution of granitic rocks during weathering Chesworth, W.;Ahrens, L.H.(ed.)
  8. Geochem. Joue. v.23 Study of colors and degrees of weathering of granitic rocks by visible diffuse reflectance spectroscopy Nagano, R.;Nakashima, S.