• 한국철도학회논문집
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• 제10권1호
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• pp.57-66
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• 2007

1974. 8. 15 SeoulMetro, beginning with the first electric railway established at six cities, so it is managing mass transportation of traffic. Especially, in case of seoul, It is managing that from one to eight lines, 286.9km, 265 stations have installed and now it is carrying about 5.5million of passengers everyday, and 2,000million passengers a year. So accident is increasing from the station every year. For this measure, SeoulMetro prepares safety fence for passengers crash but, as suicides or people who watch the accident took place, for at the bottom of passengers crash protection, PSD installing is needed. Even though, PSD is managing ATO section but, in controlling SeoulMetro, one to four lines sections are (ATS, ATC)section. Between as ATS, ATC section, ATO section, subway gate and PSD must have opened and crossed always at the time. And the interlock control corrosion protection gate, managing skills with installation, method, using in history, apply to 10rail cars one train sets, and maximum applying 2224% sections of passengers congested that consideration is to be needed. So 2004, SeoulMetro improved technology and basie design of PSD at ATS section. Based on this, from 2005.4 to 2006.6, using subway 2lines per 12stations set the model installation(full type 11stations, half type 1station) After installing in case of success, it is going about to suggest that effective analysis and hereafter subject.

• 한국전자통신학회논문지
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• 제11권6호
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• pp.561-566
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• 2016

승강장에는 승객의 안전사고를 방지하기 위하여 스크린도어를 설치하고 있으며 스크린도어에는 장애물 검지를 위해 Area센서를 설치하고 있다. 그러나 먼지, 햇빛, 눈, 벌레 등으로 인한 스크린도어의 빈번한 동작오류가 원활한 열차운행을 방해하고 있어 장애물 감지 센서의 동작오류 감소와 장애물 검지 기능을 고도화하기 위한 대체 검지기의 연구가 필요하다. 본 논문에서는 대구 문양역에 시범운영 중인 로프타입 상하개폐식 스크린도어에 Area센서와 장애물검지 다중공간분할 검지알고리즘을 적용한 3D센서를 설치하여 검지 데이터를 수집하고 CCTV를 이용한 영상데이터 판독결과를 비교하였다. 3D 센서의 장애물 검지율은 약 86.91%로 Area센서의 약 78.88% 대비 장애물 검지율이 6.87~9.79%가 더 높아 설치비용의 절감과 검지성능을 개선한 3D 센서의 적용 가능성을 확인 할 수 있었다.

• 유체기계공업학회:학술대회논문집
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• 유체기계공업학회 2006년 제4회 한국유체공학학술대회 논문집
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• pp.269-272
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• 2006

The heat and smoke which generated by subway under fire is one of the most harmful factor in air tighten underground station. To prevent this, Trackway Exhaust System(TES) can be used. The heat released from the train running in the tunnel raises the temperature at the platform and the trackway, and thus proper ventilation system is required for comfortable underground environment. When the fire is occurred, TES is operated as smoke exhaust mode from normal ventilation mode. In the present study, the subway station which is one of the line number 9 in Seoul subway is modeled, and fired situation is simulated with several ventilation mode of ventilation system in trackway. For this simulation whole station is modeled. Non steady state 3D simulation which considered train under fire is entering to the station is performed. Temperature and smoke distribution in platform and trackway are compared. To represent heat by fire, heat flux was given to the fired carriage, also to describe smoke by fire, concentration of CO is represented. As the result of present study, temperature and smoke distribution is different as the method of ventilation in trackway and platform is changed. In over side of trackway, the fan must be operated as exhaust mode for efficient elimination of heat and smoke, and supply mode of fan operation in under side shows better distribution of heat and smoke. The ventilation system which is changed from ventilation mode to exhaust mode can be applied to control heat and smoke under fire.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.1480-1486
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• 2011

지하철 승강장의 스크린도어가 설치되기 전에는 승강장을 통해 환기되던 공기가 스크린 도어가 설치된 후에는 터널 내부에 정체되면서 미세먼지에 의한 환경이 더 악화되고 있는 실정이며, 터널환기구가 터널에 정체된 공기의 유일한 순환구로 이용되고 있다. 스크린 도어는 기존 터널환기시스템을 설계할 때 고려되었던 사안은 아니었으며, 지하철 운행 시 스크린도어 설치로 인한 지하 터널 속에서의 공기역학적 변화는 매우 클 것이다. 그러나 지하철이 통과하는 공간인 터널환기에 대한 연구는 미미한 수준이다. 이에 열차가 지하 터널 구간을 운행할 때 발생하는 열차풍에 의한 기류속도를 측정하고, 전철구간의 자연 환기구를 통한 기류의 유입 및 유출 특성을 정량적으로 평가하여 대표적인 기류패턴을 추출함으로써 향후 지하 터널 신설 및 환기 설비 설계에 따른 기초 자료를 제공하고자 한다.

• 한국가시화정보학회:학술대회논문집
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• 한국가시화정보학회 2005년도 추계학술대회 논문집
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• pp.64-68
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• 2005

In this study, the smoke flows of the inner subway station were visualized through a numerical analysis and visualization experiment in the subway fire. A transparent acrylic model was designed and installed as 1:25th scale-down as the actual subway station by using geometrical similarity The properties of subway fire were reconstructed according to Densimetric Froude Similarity. The 47 to 53 ratio of the mixed air and Helium was inputted in the inner acrylic model to describe 1MW fire intensity with reference to the experiment paper. For the same time, the fire smoke from a smoke generator was inputted in the inner acrylic model with the mixture. At this time, the buoyancy effect of Helium gas went up the smoke to the acrylic model. When the sheet beam of Ar-lon laser was given out to the top and stair of subway model, the digital camcorder took the images of the scattered cluster of smoke particles when applying the smoke management system and PSD.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.470-480
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• 2008

After 1th line was built in 1974, the history of subway in Korea has been expended to 9th line which is under construction. It is time to prepare nation wide subway grounding system urgently according to the domestic electric standard that aligns to world wide standard by WTO/TBT treat (1995). Newly added grounding system to the fundamentally different system caused many problems. PSD(platform screen door) and other newly added equipment are also need grounding system. By the electrical code(established by Korea Electric Association), low voltage equipment(including grounding system) under 1,000V AC are in the process of change into IEC 60374. IEC 60364 standard will be added to the electrical code(established by Korea Electric Association) in 2007 and amended and after 3-5 years later, it will become a complete IEC 60364. So the purpose of this study is to compare the domestic rail road grounding system and suggest the standardized grounding system for the newly built subway.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.2058-2064
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• 2008

This study is concerned with the quantitative Quality of Service(QoS) of the Light Railway Transit(LRT) System. Generally, the QoS offered to passengers by the Operator of LRT system can be quantified in various ways. In this paper, we assumed that the QoS is a combination of both Train Delivery and Train Punctuality under considering LRT characteristics including core sub-systems such as, rolling stock, signalling, power-supply and PSD(platform screen door), etc. We also, provide a quantitative analysis method to evaluate the QoS related the reliability of LRT system.

• 한국터널지하공간학회 논문집
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• 제24권6호
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• pp.539-552
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• 2022

열차 정거장의 경우 연기배출이 제한된 지하공간이라는 특수성으로 인해 적절한 제연 설비가 갖추어지지 않는다면 화재 발생시 화재연기로 인한 피해가 확대될 우려가 있다. 이에 지하 정거장의 대피 안전성을 확보하기 위한 대책의 필요성이 부각되었으며, 화재시 승강장 이용객의 안전한 대피를 위한 연구가 국내외에서 지속적으로 수행되고 있다. 하지만 현재 열차 승강장에는 제연 경계벽과 PSD (Platform Screen Door)등에 의해 제연구역을 구획하여 제연설비를 설치하고 있으나, 화재시 제연구역별 제연방법(급기 또는 배기) 즉, 제연모드에 관한 기준은 제시되어 있지 않은 실정이다. 본 연구에서는 열차 정거장 화재시 제연모드에 따른 화재위험을 정량적으로 평가하기 위해서 화재해석 및 대피해석을 수행하여 사망자수를 추정하고 F/N선도를 도출하였으며, 이를 통해 최적 제연모드를 검토한 결과, 화재 구역 배기 및 인접구역 급기인 경우에 총 위험도가 가장 낮은 것으로 분석됐다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.1303-1308
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• 2011

In the modern society various types of transportation mode are utilized, among them the subway system is the one of the main transportation mode which more than 7.21 million people ride a day. Because of interests on the indoor air quality (IAQ) of underground public facilities, concerns on IAQ of subway system by many people are increasing. There are several approach to improve IAQ of subway station, such as installing platform screen door (PSD), frequent tunnel washing-out, and etc, however there has not been any attempt to improve IAQ of subway cabin inside. Most technologies for removing airborne particulate matters are known to be difficult to adopt on the subway cabin since the problem of maintenance cost. Therefore, the ultimate object of this study is a practical development of cabin air cleaning system which can reduce the concentration of airborne particles and harmful gases at the same time. The subway cabin air purifier (SCAP) was developed for removing particulate matters and gases pollutants inside a cabin. The whole system was designed and the roll-filter device was manufactured based on numerical prediction results. It is expected that SCAP could reduce indoor air pollutants in the subway cabin practically and it can be applied to other part of transportation vehicles.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.1027-1036
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• 2007

Since the opening of the Seoul Metro in 1974, the electric railway passengers have been increased rapidly and as the advanced equipments(OC,PSD) were introduced, additional power facilities were built in a limited area for the comfortable transportation environment. Present grounding system were built according to old Electric equipment standards and all the electric signal, communication and electronic equipments were built only for the purposes of protecting building structure, people and electronic equipments. Grounding system which was additionally built in the limited area caused problems with the building structure and it caused secondary damages when earth fault happens. One of the problems is grounding system of the building structure; grounding system does not work properly since grounding equipments are not separated from each other. So, existing grounding system needs to be improved and unified grounding system in the building should be established. The purposed of this study is to analyze all the grounding systems that had been built in different year and to establish unified grounding system of Seoul Metro.