논문 : Top-Down 공법이 적용된 흙막이벽의 역해석을 이용한 거동분석

홍원표 ( Won Pyo Hong ),강철중 ( Chul Joong Kang ),윤중만 ( Jung Mann Yun ) 대한지질공학회 2012 지질공학 Vol.22 No.1

본 연구에서는 흙막이벽 설계시 널리 사용되고 있는 SUNEX 프로그램을 이용하여 Top-Down 공법이 적용된 지중연 속벽, 주열식 흙막이벽 (CIP벽, SCW벽)의 변형거동을 분석하였다. 해석프로그램에 Rankine의 토압(l857), Terzaghi and Peck의 토압(1967), Tschebotarioff의 토압(1973), 홍원표·윤중만의 토압(1995a)을 적용하여 흙막이벽의 수평변위를 예측하였다. 프로그램 해석결과, 흙막이벽의 수평변위량은 토압의 종류에 따라 큰 차이를 나타내고 있다. 홍원표·윤중만의 토압(I995a)을 적용하여 얻은 흙막이벽의 예측수평변위량이 실측수평변위량과 가장 유사하게 나타났다. 따라서 프로 그램 해석시 홍원표·윤중만의 경험토압(l995a)을 적용하면, Top-Down 공법이 적용된 흙막이벽의 변형거동을 비교적 정확히 예측할 수 있다. Abstract: The behaviors of a diaphragm wall and a contiguous pile wall such as CIP (Case-in-place pile) and SCW (Soil-cement wall), applied to the top-down construction method, were analyzed using the SUNEX program, which is widely used to design earth retaining walls. Four types of earth pressures, as described by Rankine (1857), Terzaghi and Peck (1967), Tchbotarioff (1973), and Hong and Yun (1995a), were applied to the analysis program to predict the lateral displacement of walls, The results show that the displacements of an earth retaining walls vary with the applied earth pressure. The predicted lateral displacement based on Hong & Yun`s (1995a) earth pressure is similar to the measured displacement. Therefore, the actual lateral displacement of an earth retaining wall, as applied to top-down construction method, can be accurately predicted by using an analysis program considering Hong and Yun`s (1995a) earth pressure.

Top-Down 공법이 적용된 지중연속벽의 설계시 측방토압의 적합성 평가

홍원표(Hong Won-Pyo),강철중(Kang Chul-Joong),윤중만(Yun Jung-Mann) 한국토목섬유학회 2012 한국지반신소재학회 논문집 Vol.11 No.1

본 연구에서는 지중연속벽 설계시 사용되는 범용 해석프로그램에 Rankin(1857)의 이론토압과 홍원표와 윤중만(1995a)의 경험 토압을 각각 적용하여 Top-Down 공법에 적용된 지중연속벽의 수평변위를 분석하였다. 그리고 이들 해석 프로그램에서 산정된 예측변위량과 지중경사계로 측정된 실측변위량을 비교 검토하였다. 현재 지중연속벽 설계에 적용되는 해석프로그램에는 Rankine의 토압이 주로 적용되고 있다. 검토결과, 지중연속벽의 예측수평변위는 적용되는 토압에 따라 상당히 큰 차이를 나타내고 있다. Rankine의 토압을 적용하여 산정된 예측수평변위 형상은 실측결과와 큰 차이를 보이고 있으며 벽체의 하부에서 예측치가 실측치보다 과다하게 산정되었다. 반면, 홍원표·윤중만의 토압을 적용하여 얻은 예측수평변위 형상과 최대수평변위 량은 실측결과와 유사하게 나타났다. 따라서 Top-Down 공법이 적용된 지중연속벽의 설계시 Rankine의 토압보다는 홍원표·윤중만의 경험토압을 적용하는 것이 적합함을 알 수 있다. The Rankine(1857)'s earth pressure and the Hong and Yun(1995a)'s earth pressure was applied to analyze the lateral displacement of diaphragm wall applied to the Top-Down construction method using the computer program, which is a common design program for diaphragm wall. The lateral displacement estimated by the computer program was compared with the lateral displacement measured by inclinometer. The Rankine's earth pressure has been widely used to design the diaphragm wall in the analysis of computer program. As the result of comparison, the lateral displacement of diaphragm wall was predicted differently according to the applied earth pressures. The behavior of lateral displacement predicted by the Rankine's earth pressure was different with displacement measured by inclinometer and the lateral displacement at the bottom part was overestimated. However, the lateral displacement predicted by the Hong and Yun's earth pressure is similar to the behavior and maximum value of real displacement. Therefore, the Hong and Yun's earth pressure is more suitable than the Rankine' earth pressure to design the diaphragm walls applied to the Top-Down Construction Method.

오사카 지하철의 특징과 부산 지하철의 방향

오윤표 동아대학교 법학연구소 1999 硏究報告 Vol.22 No.2

The transportation policy of Osaka city is maintained and improved based on the concept of putting all the relevant transport facilities into one systems, which avoids maintaining railway, subway and bus separately and enables to provide the citizen with the best service. The city government continues pursuing the maintenance and improvement plan of the subway intensively because it is expected to play the most important role of transportation among the transport means such as railway, subway, buses in the 21th century. The subway is regarded as the best means in the aspects of speed, safety and mass transport with minimum adverse environmental effect. Herein, it is Intended to suggest the direction of the transportation policy of Pusan city in the light of the subway policy of Osaka city after studying it.

2004년도 도시별 교통문화지수 실태조사

오윤표,안영종 東亞大學校 建設技術硏究所 2005 硏究論文集 Vol.28 No.2

국어학 연구 업적 평가의 제문제

홍윤표 국어국문학회 2003 국어국문학 Vol.- No.134

We cannot take off the academic evaluation in these modem days. But we should not judge reports of our research by the purpose of external conditions of academy, i.e, arrangement of a research grant, the promotion of a professor, etc. If a valuation basis of the academic evaluation sticks too much to formalities, Korean studies can not developed.

U-Turn의 적정신호시간 모형구축에 관한 연구

오윤표,안영종,이영빈 東亞大學校 建設技術硏究所 2005 硏究論文集 Vol.28 No.2

In metropolitan, main streets manages 60-80% of the whole traffic in Korea even though its limited area and short extension. Main streets in urban has suffered congestion and a falling-off in capability of transportation due to its frequent discontinuity and disconnection. Especially Left-turn traffic mainly generates a shortage of fluidity in intersection although most intersection adopts Left-turn because of the peculiarity of traffic flows. To breakthrough this deterioration, U-turn system goes into effect in intersection of most main streets by reducing Left-turn phase or banning Left-turn at specific intersections to increase the fluidity of main direction. However, U-turn system lacks continuity and reveals security deficits because its legal basis and safety standard are not definitive. Therefore, this study, firstly, investigates the special characteristics of U-turn system, analyzes its effects based on the case of Busan city making the survey of drivers' awareness on U-turn. Then, secondly, This study aims to suggest more efficient and executive operating program for U-turn system by constructing proper Signal time model for U-turn.

주차정책전환을 위한 제도 개선방안

오윤표 동아대학교 건설기술연구소 1998 硏究報告 Vol.22 No.1

At the present time, Pusan is suffering from parking problem seriously, because the rate of increase in car is overwhelming that of parking place. Therefore, this study investigates parking policy being carried out in developed countries and wants to present concretely an introducing program of new ABC parking policy desirable to Pusan.

토요타(豊田)市의 ITS實驗事例의 期待效果

吳允杓,伊豆原 浩二 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.1

In August of 1998, Toyota city put in the operation of the “ITS model district experiment, In Toyota”, appointed by the “Traffic and Motor Vehicle Intelligence Enforcing Committee” in japan. The content of the experiment is composed of 4 themes and 3 social experiments utilizing ITS technologies and researched facts on operation probabilities for the enforcement of 3 social experiments. The 3 types of experiments are ①Experiment on Car-Navigation of ITS as well as the VICS(Vehicle Information and Communication System) and the Traffic Information and Communication System for higher technologies. ②P&P experiment of hourly events. ③The EV collaborated utilization experiments. These experiments have been enforced in 1999. Furthermore, Toyota city investigated the expected outcomes by analyzing the test cases as it's main source on ITS experiments in 1999.

交通事故의 心理的 特性과 影響要因 分類모델의 構築에 관한 硏究

吳允杓 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

Various traffic problems, such as accident, congestion, ect., are caused by the change of industrial structure, expansion of economic scale, growth of living standard, and motorization. Especially, traffic accident brings our affection because of numbers of fatalites and casualties to our lives and properties. We, human being, can only control the influence factor of disasterous traffic accident. Therefore, this study focuses on the study of analyzing the influence factor to non-assaulted and assaulted drivers by using Logistics Regression Analysis.

몰핀이 신경아세포종 SH-SY5Y 세포에서 Peroxynitrite에 의한 세포고사를 막는 것은 아편양 수용체나 Phosphatidylinositol-3 kinase (PI-3 kinase) 경로의 활성화에 의한 것이 아니다

정영표,이동렬,손용,김태요,윤재승,송윤강,김명선,박래길 圓光大學校 醫科學硏究所 1999 圓光醫科學 Vol.15 No.2

Background: The effect of opioids on nitric oxide (NO)- and peroxynitrite-induced neuronal cell death is largely unknown. In the present study, we examined the effect of morphine on NO- and peroxynitrite-induced cell death using a human neuroblastoma SH-SY5Y cell line, which abundantly expresses μ, δ, k-opioid receptors. Methods: The cultured cells were pretreated with morphine and exposed to 3-morpholinosydnonimine (SIN-1) that simultaneously generates NO and superoxide, thus possibly forming peroxynitrite. The cell damage was assessed by using MTT assay ana crystal violet staining. Exposure of the cells to SIN-1 for 24 hours induced apoptotic cell death, as evaluated by the occurrence of morphological nuclear changes characteristics of apoptosis using 4', 6-diamidino-2-phenylindole (DAPI) and measurement of pro-apoptotic protease, caspase-3, activity. Results: Pretreatment of SH-SY5Y with morphine, significantly inhibited the apoptotic cell death in a dose-dependent manner. Morphine also inhibited SIN-1-induced proapoptotic protease, caspase-3, activity in a dose-dependent manner. However, naloxone (20 μM) hardly antagonized the effect of morphine in SIN-1-induced cell death. The selective ligands for opioid receptor subtypes, [D-Ala^2, N-Me-Phe^4, Gly-ol^5]enkephalin (DAMGO, μ-opioid receptor agonist), [D-Pen^2.5]enkephalin (DPDPE, δ-opioid receptor agonist) and U-69593 (k-opioid receptor agonist) at the concentration of 10 μM did not prevent the cell death induced by SIN-1. PI3-kinase inhibitors, Wortmannin and LY294002, did not inhibit the action of morphine on apoptotic cell death. The neuroblastoma cells treated with morphine significantly elevated glutathione levels (GSH). Conclusions: The present study showed that morphine protected human neuroblastoma cell line, SH-SY45Y, from the peroxynitrite-induced apoptotic cell death through elevated GSH levels. However, it is suggested that the elevation of GSH by morphine is not via the activation of opioid receptors and/or PI3-kinase pathway but via other unknown mechanism.