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경사지반에서 얕은터널의 굴착에 따른 지표침하에 대한 실험적 연구
박찬혁,이상덕,Park, Chan Hyuk,Lee, Sang Duk 한국터널지하공간학회 2017 한국터널지하공간학회논문집 Vol.19 No.5
도시 내에서 기반시설을 확충하기 위해 지하공간의 활용이 급증하고 있으며, 이에 따라 얕은터널의 수요가 늘고 있다. 도시 내 얕은터널은 자체 안정성 뿐만 아니라 상부 건축물과 터널 주변 지중매설물의 안전성도 확보해야 하는 특성이 있다. 지금까지 얕은터널에 대한 연구는 천단부나 측벽부 등 국부적 변형에 따른 주변지반 거동에 집중되었고 터널 전체의 변형에 따른 주변지반의 거동을 연구한 예가 거의 없다. 따라서, 본 연구에서는 터널 전체의 변형에 의해 발생되는 주변지반 거동의 모형시험을 수행하여 분석하고 그 안정성을 검토하였으며, 이를 위해 터널 상부지표의 경사와 토피별로 구분하여 모형시험을 수행하였다. 모형터널(폭 300 mm, 높이 200 mm)은 도로 2차선 터널 단면을 기준으로 수직 수평방향으로 동시에 내공변위가 일어나도록 제작하였으며, 모형지반은 3가지 규격(직경 4 mm, 6 mm, 8 mm)의 탄소봉으로 조성하였고, 터널 전체를 변형시키면서 터널 토피와 상부지표의 경사에 따른 지표침하, 천단하중, 측벽하중, 하중전이를 측정하였다. 그 결과 얕은터널의 지표침하는 터널상부에서 가장 크게 발생하였고, 터널에서 멀어질수록 감소하여 일정영역을 벗어나면 발생하지 않았으며, 경사지에서는 토피가 높은 곳의 지표침하가 넓게 나타났다. 천단하중과 측벽하중은 지표경사의 영향이 뚜렷하였으나 토피가 일정깊이 이상이면 지표경사의 영향을 받지 않았다. 터널의 하중전이는 수평지표에서는 토피가 높을수록, 경사진 지표에서 지표가 높을수록 하중전이 폭이 넓고 크기가 작게 나타났으며, 경사진 지표 하부 얕은 터널에서는 토피가 낮은 쪽의 터널 측벽부 주변 하중전이가 뚜렷하게 나타났다. The need of the underground space for the infrastructures in urban area is increasing, and especially the demand for shallow tunnels increased drastically. It is very important that the shallow tunnel in the urban area should fulfill not only its own safety conditions but also the safety condition for the adjacent structures and the surrounding sub-structure. Most of the studies on the behavior of shallow tunnels concentrated only on their behaviors due to the local deformation of the tunnel, such as tunnel crown or tunnel sidewall. However, few studies have been performed for the behavior of the shallow tunnel due to the deformation of the entire tunnel. Therefore, in this study the behavior of the surrounding ground and the stability caused by deformation of the whole tunnel were studied. For that purpose, model tests were performed for the various ground surface slopes and the cover depth of the tunnel. The model tunnel (width 300 mm, height 200 mm) could be simulationally deformed in the vertical and horizontal direction. The model ground was built by using carbon rods of three types (4 mm, 6 mm, 8 mm), in various surface slopes and cover depth of the tunnel. The subsidence of ground surface, the load on the tunnel crown and the sidewall, and the transferred load near tunnel were measured. As results, the ground surface subsided above the tunnel, and its amount decreased as the distance from the tunnel increased. The influence of a tunnel ceased in a certain distance from the tunnel. At the inclined ground surface, the wider subsidence has been occurred. The loads on the crown and the sidewall were clearly visible, but there was no effect of the surface slope at a certain depth. The load transfer on the adjacent ground was larger when the cover depth (on the horizontal surface) was lager. The higher the level (on the inclined surface), the wider and smaller it appeared. On the shallow tunnel under inclined surface, the transfer of the ambient load on the tunnel sidewall (low side) was clearly visible.
치자(梔子)가 강제수영부하시험에서 Corticotropin-Releasing Factor, c-fos와 Tyrosine Hydroxylase에 미치는 영향
박찬혁,이태희,Park, Chan-Hyuck,Lee, Tae-Hee 대한한의학방제학회 2009 大韓韓醫學方劑學會誌 Vol.17 No.1
Objectives : The goal of this study was to investigative the effect of Gardeniae Fructus (GF)as antidepressant in the forced swimming test(FST) model rats. Methods : The expressions of corticotropin-releasing factor(CRF), tyrosine hydroxylase (TH) and c-fos were measured by immunohistochemical method at paraventricular nucleus(PVN), locus coeruleus (LC) and ventral tegmental area(VTA). Results : The duration of immobility in FST was significantly decreased in the GF 100mg/kg groups (p<0.05). CRF expression was significantly decreased at PVN in the GF 100 mg/kg and 400mg/kg treated group in comparison with the control group, respectively (p<0.01). c-fos expression was decreased at PVN in the GF 100 mg/kg treated group with no significance. TH expression was significantly decreased in the GF 100 mg/kg and 400mg/kg treated group in comparison with the control group, at LC and VTA respectively (p<0.001). Conclusion : According to the results, it can be considered that Gardeniae Fructus has antidepressant effect by showing the reduction of immobility in FST through the reduction of CRF, TH expression.
외국인범죄에 대한 치안정책 강화방안 연구 -일본의 불법체류자 정책과 비교를 중심으로-
박찬혁 ( Chan Hyeok Park ) 부산외국어대학교 비교법연구소 2015 比較法學 Vol.26 No.-
Recently, there was a case of torso murder by Chun-bong Park in Korea. Citizens tremble with the fear of crime, thus this had contributed to the lack of confidence in policing. In 2013, the number of registration of foreigners is 1,576,034, and the proportion of foreigners has increased. That means multicultural phenomenon has arisen in globalization. In the trend, the occurrence of crime also has increased, and the number of crime has increased by three times rather than ten years ago. In terms of resolving the problems, the Korea Immigration Service, police, and local community associations make efforts in many different fields. However, only one specific agency’s efforts could not manage residents aliens and prevent crime by foreigners. Therefore, in this study, an management of illegal immigration in Japan has examined. and explored countermeasures for Korea. Engagement policies for foreign workers, resident aliens, and immigrants are needed. Also, not only short-term initiatives are needed, but also long-term alternatives should be developed.
박찬혁(Chan-Hyeok, Park) 한국범죄심리학회 2020 한국범죄심리연구 Vol.16 No.1
최근 우리나라의 다문화 혼인건수는 평균적으로 약 24,000건 이상으로 매년 다문화 가정이 증가하고 있다. 이런 국제결혼을 통해 국내에 이주한 여성의 수가 계속 증가하고 있으며 폭력범죄의 피해자도 증가하고 있다. 경찰관은 업무의 특성상 사회적으로 열등한 위치의 사람들과 접촉하게 되며 결혼이주여성도 그 대상 중에 하나이다. 경찰관이 특정 대상이나 집단에게 가지는 부정적 감정이나 편견은 법집행이나 수사과정에 많은 영향을 미치게 된다. 따라서 특정 집단에 대해 어떠한 인식을 가지고 있는지 여부는 매우 중요하다. 이 연구는 결혼이주여성에 대한 신임경찰관들의 인식을 사회적거리감으로 파악하고자 하였다. 설문조사를 통해 밝혀진 연구결과를 살펴보면 남녀 간의 인식에 차이가 존재했다. 또한 부정적 감정으로 인해 사회적 거리감이 낮은 것으로 나타났다. 이처럼 신임경찰들이 그들에 대한 수용도가 낮다는 것은 결혼이주여성에 대한 이해도가 낮다는 것을 의미하며 법집행과정에서 부정적인 결과를 초래할 수 있음을 알 수 있다. 현재 중앙경찰학교에서 제공되는 교육훈련의 프로그램에 결혼이주여성에 대한 이해를 돕기 위해 몇 가지 제언을 하였다. Recently, the number of multicultural marriages is about 24,000 on average. As such, multicultural families are increasing every year. As the number of women who migrated to Korea through international marriage increases, the number of violence victims is also increasing. Police officers contact with people who are socially inferior due to the nature of their work and women migrated by marriage are among them. The negative emotions or prejudices which police officers have on particular subject or group greatly impact on law enforcement and investigation process. Therefore, it is very important what kind of awareness for particular group they have. This study was to identify awareness of new police officers on women migrated by marriage with a social distance. Study results revealed through survey shows that there are differences in awareness between men and women. And social distance was low due to the negative emotions. As such, the low acceptability of new police officers on them means that they don t understand them well, and it may lead to negative results in law enforcement. We presented several suggestions in the education program which is currently provided to Central Police Academy to help them understanding women migrated by marriage.