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이수곤,이경수,정상훈,Lee. Su-Gon,Lee. Kyung-Su,Jung. Sang-Hun 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
본 연구 지역은 제주도에 위치해 있으며 아름다운 경관으로 유명하여 매년 외국인을 포함한 많은 관광객들이 늘어나고 있는 추세이다. 그러나 지형, 지질적인 특징과 기후의 특성으로 인하여 낙석사고가 빈번하게 발생하여 이로 인한 인명 및 재산 피해가 항상 도사리고 있어 항구적인 대처가 필요하다. 그러므로 본 연구에서는 낙석붕괴 가능성을 분석하여 합리적인 피해 저감 대책 방안을 연구하였다. This study area, Sanbang mountain located in southern part of Jeju island, is famous for its scenic with increasing foreigners and visitors. However, rockfall frequently occurred because of the meteorological characteristic and geological features with trachyte, a sort of volcanic rock, is distributed through Sanbang mountain area and also additional rockfalls are being existed all the time. Therefore this research is to see reasonable countermeasure against rockfall with the subject of a roundabout way of Sanbang mountain, through field investigation and following analysis.
이수곤,이경수,강병호,Lee,Su-Gon,Lee,Gyeong-Su,Kang,Byeong-Ho 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
우리나라는 70%가 산지로 구성되어있으며, 매년 집중호우로 인한 사면붕괴가 발생하여 연평균 60여명의 인명피해와 수 천억원 이상의 재산피해가 발생하고 있다. 그러므로 본 연구에서는 사면붕괴의 근본적인 원인을 파악하기 위해 기존 사면관련 102권의 설계보고서 분석하였으며, 그 결과 각 기관들이 제시하고 있는 절취사면 관련 설계기준은 복잡한 국내의 지질조건을 적절히 고려할 수 없는 것으로 판단되었고, 검토된 보고서들은 각 기관들이 제시한 설계기준을 제대로 시행하지 않거나 형식적으로 설계를 실시한 것으로 나타났다. The slope failures frequently occurred during heavy rainfalls in Korea of which 70% consists of mountains result in average 60 casualties and hundreds of millions US dollars of property damage. The status of design methods were analyzed with use of existing 102 design reports, Also, the design standards related to cut slopes are suggested by various institutions but the contents of standards are not proper to reflect the complicated geological features of Korea. And most reports rarely followed the suggested standards and are insufficiently conducted.
이수곤,정명현,양은배,Lee, Sookon,Chung, MyungHyun,Yang, Eunbae 연세대학교 의과대학 2007 의학교육논단 Vol.9 No.2
Purpose: The aim of this study is to identify the elements of success in curriculum reformation using focus group interview and faculty survey. Methods: We analyzed the 105 questionnaires that were collected horn 450 faculties in Yonsei University College of Medicine from September 1 to September 12, 2005. The interview of focus group was conducted to 105 faculty and students using 10 interview questions from July 25 to August 29, 2005. The data of focus group interview and faculty survey were analyzed by content analysis. frequency and percentile. Results : 66.7% of faculty have pointed out that it is right a direction of new curriculum but there are some problems in curriculum management. The most frequently addressed problem in the new curriculum is as follows : ability of self-directed learning(15.3%). deficiency of faculty understanding(10.5%). The faculty comments on the improvement areas of new curriculum such as curriculum revision (8.6%). efficiency of curriculum management (6.7%), reward and incentive system of education(6.7%). The focus groups pointed out the important factors of curriculum reformation such as horizontal and vertical integrity between subjects, improvement of student achievement test, enhancement of self-directed learning. responsibility and authorities of course director. Conclusions : It should be concluded. to succeed curriculum reformation, which the purpose of curriculum reformation announces obviously and management group should effort continuously so that professors may understand the new curriculum. The course directors have to responsibility and authorities operating the subjects and the university should develop the students' evaluation system and faculty performance appraisal system.
절리빈도를 고려한 규암 암반에서의 합리적인 암판정 연구
이수곤(Su-Gon Lee),김민성(Min-Sung Kim),이경수(Kyung-Soo Lee),이치홍(Chi-Hong Lee) 한국암반공학회 2007 터널과지하공간 Vol.17 No.2
일반적으로 암판정을 수행하기 위해 가장 널리 사용되는 방법은 암석의 강도와 절리의 발달빈도를 고려하는 것이다. 하지만 미세균열과 연장성이 긴 절리들이 암반에 존재하고 있는 경우에는 이러한 방법이 합리적이지 않다. 그러므로 복잡한 지질조건을 가지고 있는 암반에서의 굴착난이도 결정은 절리빈도와 실내시험(일축압축강도, 점하중강도, 실내탄성파속도 등)과 현장탄성파속도와의 상관관계를 종합하여 암판정을 수행하는 것이 더욱 더 합리적이라고 판단된다. Generally, the method used most widely for rock mass classification is considering the rock strength and development of joint frequency. However, if rock bed has micro-crack and long joint, this method is not rational. Therefore, the difficulties of excavation in the rock bed with complicated geological condition are decided by combining joint frequency, indoor tests (uniaxial compressive strength, point load test, indoor elastic wave velocity, etc.) and field seismic refraction survey, and the rock mass classification should be implemented by considering their interrelationship.