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복층터널의 분기터널 굴착에 따른 지하 공동구의 안정성 분석
남경민,최민기,김정주,유한규,Nam, Kyoung-Min,Choi, Min-ki,Kim, Jung-Joo,Jafri, Turab H.,Yoo, Han-Kyu 한국터널지하공간학회 2017 한국터널지하공간학회논문집 Vol.19 No.2
서울시는 도심지 교통체증을 해결하기 위해 최근 경부고속도로의 일부 구간을 복층터널로 계획하는 방안을 검토하고 있다. 도심지에 복층터널을 건설할 경우, 교통난 해소뿐만 아니라 말레이시아 스마트 터널과 같이 홍수 시 침수방지를 위한 저류시설로도 활용할 수 있을 것으로 본다. 그러나 도로터널을 복층터널로 계획할 경우에는 각 지역을 연결하는 분기터널이 필요하며, 분기터널은 토피가 낮은 구간에 편평율이 큰 대단면 또는 복잡한 터널 단면형상으로 이루어지게 된다. 이때 토피가 낮은 지역에서는 지하 공동구나 건물 기초 등에 인접하여 위치하게 되며 터널 건설로 인해 지장물에 미치는 영향에 대해 반드시 검토해야 한다. 본 연구에서는 복층터널에서 분기되는 터널 굴착 시, 지하 공동구에 미치는 영향을 수치해석을 통해 분석하였다. 변위조절모델(Displacement Controlled Model)을 이용하여 터널 주변의 지반손실률을 1.0%, 3.0%, 그리고 5.0%까지 모사하였다. 복층터널에서 분기되는 각도를 $45^{\circ}$와 $36^{\circ}$로 다르게 설정하여 공동구 측면 및 하부로의 접근을 고려할 수 있도록 하였다. 그 결과, 일반적으로 분기터널이 공동구에 근접할수록 그리고 지반손실률이 클수록 변위, 각변위 그리고 안정성에 미치는 영향이 큰 것으로 타나났다. 공동구 바닥부의 침하와 공동구 부재의 안정성에는 이격거리 보다는 공동구의 하부에 근접하여 큰 변위와 부등침하를 유발할 수 있는 각도 $36^{\circ}$, 이격거리 10 m가 가장 취약한 것으로 나타났다. 본 연구를 통해 근접시공 시 구조물의 안정성 평가를 위한 각변위-거리/직경 관계를 제시하였으며, 지하 공동구 안정성에 영향을 미치는 한계 임계 지반손실률을 산정하였다. Government plans to construct a double-deck tunnel under a portion of Gyeongbu Expressway that will solve traffic problems and could also be used as a flood storage facility. Divergence tunnels connect the main tunnel to the urban areas and their construction effects on adjacent structures at shallow depth need to be analyzed. This study primarily includes the numerical analysis of construction effects of divergence tunnels on utility tunnels. The utility tunnel was analyzed for three cases of volume loss applied to the divergence tunnel and two cases of the angle between main tunnel and divergence tunnel ($36^{\circ}$ and $45^{\circ}$). The results show that the more the volume loss was applied and the shorter the distance was between utility tunnel and divergence tunnel, the more the utility tunnel was affected in terms of induced displacements, angular displacement and stability. The worst scenario was found out to be the one where the angle between main tunnel and divergence tunnel was $36^{\circ}$ and the distance between divergence tunnel and utility tunnel was 10 m, resulting in the largest displacement and differential settlement at the bottom of the utility tunnel. A relationship between the angular displacement and the distance to diameter ratio was also established.
김희영,나세희,남경민,남선효,노주희,두송이,문지예,김은희,김진아,안성아,Kim, Hui-Yeong,Na, Se-Hee,Nam, Kyoung-Min,Nam, Sun-Hyo,Noh, Ju-Hee,Doo, Song-Ee,Moon, Ji-Ye,Kim, Eun-Hee,Kim, Jin-A,Ahn, Seong-Ah 한국임상보건과학회 2013 한국임상보건과학회지 Vol.1 No.1
Purpose. The purpose of this study was to contribute to the development of the sexual education program by examining status of Sexual Violence Consciousness and Cognition of Sexual Violence of University students Methods. The subjects were 240 University students located in J-city. Data were collected during the period from Nov. 12, 2012 to Nov. 13, 2012. For the data analysis, SPSS 12.0 K program was utilized to get frequency number, percentage, average, standard deviation and t-test. Results. The results present different degrees of man and women's cause of sexual violence cognition and consciousness were as following ; The several scores of women higher more than man parts were 'Think of the woman as a sexual target(t=3.86, p<0.001)','Men's sexual urges(t=3.98, p<0.001)', 'The low status of women in society (t=3.85, p<0.001)', 'Male-dominated society and culture(t=5.62, p<0.001)', 'Acceptance of men aggression and activism(t=5.19, p<0.001)','Weak punishment (t=7.25, p<0.001)'and Man higher more than women parts were 'overexposure of women(t=3.88, p<0.001)'. Conclusion. Results suggest that sexual education program should strategies to increase a positive Consciousness and Cognition of Sexual Violence in their education programs in order to improve Consciousness and Cognition of Sexual Violence in University students.
Anti-TNF-α 치료를 받은 강직성 척추염 환자들의 체중과 골밀도 변화
이장원 ( Jang Won Lee ),정민석 ( Min Suk Jung ),김동현 ( Dong Hyun Kim ),이승현 ( Seung Hyun Lee ),오숙경 ( Sook Kyung Oh ),조영선 ( Young Sun Jo ),변상환 ( Sang Hwan Byun ),남경민 ( Kyoung Min Nam ),이충원 ( Choong Won Lee ) 대한내과학회 2013 대한내과학회지 Vol.85 No.5
Background/Aims: To determine the changes in body weight and bone mineral density in patients with ankylosing spondylitis (AS) receiving anti-tumor necrosis factor-α (TNF-α) treatment. Methods: Thirty-one patients with AS (25 males and 6 females) who fulfilled the Modified New York Criteria for AS were included in this retrospective study. All patients had active disease that eventually required anti-TNF-α treatment. Each patient received anti-TNF-α treatment (etanercept 25 mg twice weekly or adalimumab 40 mg twice monthly) for more than 2 years. Body weight, disease activity as Bath ankylosing spondylitis disease activity index (BASDAI), C-reactive protein, erythrocyte sedimentation rate (ESR), lumbar bone mineral density (LBMD), and femoral bone mineral density (FBMD) were measured at baseline and at 1 and 2 years after initiating anti-TNF-α treatment. Results: There was a significant increase in mean body weight at 1 year (1.1 ± 3.8 kg) and at 2 years (1.7 ± 4.8 kg) compared with baseline. The gains in mean BMD of the lumbar spine were significant at 1 year (0.4 ± 0.4) and 2 years (0.5 ± 0.7) compared with baseline. Mean BMD of the femur was also increased at 1 year (0.08 ± 0.7) and 2 years (0.1 ± 0.8) compared with baseline, but these differences were not statistically significant. There were significant decreases in BASDAI at 1 year (-3.3 ± 2.8) and at 2 years (-3.6 ± 2.8) compared with baseline. Conclusions: This study showed significant increases in body weight, lumbar BMD, and BASDAI at 1 year and 2 years in patients with ankylosing spondylitis after receiving anti-TNF-α treatment. (Korean J Med 2013;85:489-494)