• Title/Summary/Keyword: underground subway station

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A Study on the Facade Design of the Underground Entrance at Subway Station Considering the City Shelters' Functions - Focused on the Subway Station Line 1 in Busan - (도시 대피시설 기능을 고려한 지하철역 지하 출입구의 파사드 디자인에 관한 연구 - 부산광역시 지하철역 1호선을 중심으로 -)

  • He, Lei;Kim, Dongsik
    • Korean Institute of Interior Design Journal
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    • v.26 no.6
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    • pp.180-190
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    • 2017
  • The subway station is not only an effective means to solve urban traffic problems, but also a kind of representative city shelters with a variety of functions such as urban beauty and disaster prevention. At the same time, the subway station as public facilities need activate the urban functions and through the effective design schemes for a variety of the facade of underground entrance to improve users' awareness and reliability for the subway station as a city shelters. This study is conducted to purpose the design direction considering design and disaster preventing characteristics of the underground subway station entrance. In addition, it will provide a basic reference for the subway station in the renovation and construction. The study is composed of literature reviews and field survey. The literature reviews through papers and documents related to the city shelters, the components and characteristics of city shelters, and components and characteristics of facade design of underground entrance at subway station. Before the field survey through the online surveys with evacuation capabilities and screening only the subway station. And field survey is conducted on the site with careful observation and confirmation. Last cluster analysis were applied to the finally selected samples by the SPSS Win18.0

Seismic Performance Analysis of RC Subway Station Structures (철근콘크리트 지하철 정거장 구조물의 내진 성능 해석)

  • 남상혁;송하원;변근주
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.10a
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    • pp.123-128
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    • 2002
  • In this paper, an averaged constitutive model of concrete and reinforcing bars for RC structure and path-dependent Ohsaki's model for soil are applied, and an elasto-plastic interface model having thickness is preposed for seismic analysis of underground RC subway station structure. A finite element analysis technique is developed by applying aforementioned constitutive equations and verified through seismic analysis of underground RC subway station. Then, failure mechanisms of the RC subway station structure under seismic action are numerically derived. Then, failure modes and damage levels of the station are also analytically evaluated for the cases of several designs of the underground RC station.

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Numerical Study on the Smoke Movement and Evacuation in the Deeply Underground Subway Station Fire (대심도 지하역사에서의 화재시 연기거동과 피난에 대한 수치해석 연구)

  • Kim, Hong-Jin;Bae, Sung-Yong;Choi, Young-Ki;Hong, Gi-Bae;Ryou, Hong-Sun
    • Proceedings of the KSR Conference
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    • 2011.10a
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    • pp.1342-1347
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    • 2011
  • Advantages of the deeply underground subway are underground space efficiency, high speed, decrease of noise and vibration. However, when fire occurs in the deeply underground subway station, large casualties are occurred like Daegu subway station fire due to the increase of evacuation distance. In this study, a numerical analysis was performed by using the fire and evacuation analysis program FDS+EVAC for smoke movement and evacuation in Beotigogae station among the deeply underground subway station. Heat release rate of carriage fire was set 10MW and the fire growth rate was ultrafast. As a result, the smoke move to the exit at 1085 second. The total evacuation time took 956 second.

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A study on the subway-station improvement of metropolitan subway (도시철도 역사개선에 관한연구)

  • Kim, Dong-Won;Park, Soo-Choong;Lee, Hi-Sung;Moon, Dae-Sup
    • Proceedings of the KSR Conference
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    • 2007.11a
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    • pp.1641-1646
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    • 2007
  • Subway station is installed with equipment of deficient ventilation and air purification in need of routine activity for users because projectors didn't have recognition of the importance of prevention equipment on disasters in subway stations. So if the accident in Deagu is occurred again, we can't prevent it. And it is urgently necessary to improve antique subway station for the safety and service to citizens because users were increased far more. Improvement of subway station has to be modernized the backward and antique subway station and maintained and developed by the center of traffic to give the social contribution with management of social facilities. And subway station has to be made conveniently so that everyone may use the station with one-stop system including sales, business, service equipment. This study will show the improvement plan of problem in underground space and situation of metropolitan-train history to improve metropolitan-train station .we will study a traffic line and equipment relocation of underground space considering safety by choosing the improved station and problems of the underground station in seoul. And then we will study the improvement plan of air purification and sound isolation to upgrade service in citizens.

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An Experimental Study on the Characteristics of Train-Wind in Underground Shopping Center Connected to Subway Station (지하도 상가와 지하 역사 연계구에서 열차풍 발생 특성에 관한 실험적 연구)

  • Hwang, In-Ju;Lee, Hong-Cheol
    • Proceedings of the SAREK Conference
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    • 2005.11a
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    • pp.82-87
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    • 2005
  • The characteristics of train-wind in the underground shopping center(UGSC) connected to subway station is investigated by field measurement for the case of train movement such as arrival and departure, etc. Also air curtain installed at the pass way between underground shopping center and subway station were considered as the parameter in order to analysis the effect on indoor air quality and thermal condition. The measurement data such as velocity, relative humidity, wind-pressure were plotted as quantity variation with time scale. The train-wind affected wind velocity, air pressure and relative humidity at the connecting area of underground shopping center and subway station, and the variation was about 4.5 m/s, 8%, 40 Pa. Also the result showed that the air curtain is not proper to reduce influence of train-wind

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Experiments of Smoke Behavior in an Underground Subway Station (지하역사에서의 화재연기거동 실험)

  • Kim, Dong-Hyeon;Jang, Yong-Jun;Park, Won-Hee
    • Journal of the Korean Society for Railway
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    • v.10 no.1 s.38
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    • pp.67-73
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    • 2007
  • Experiments were carried out to investigate smoke movement in platform of a subway station which currently is in service in Pusan, the second largest city in Korea. The recently constructed underground station of the "bank type" (two platforms on both sides of track) which is the popular layout of platforms in Korea, is chosen in Pusan. The smoke generator and heater are used for simulating the smoke movement at the fire break in the platform located in the 2nd basement of the station. Video recordings were used to monitor smoke lowering. In this study, the movements of smoke in the underground station are investigated under various smoke-control operating modes. Three tests wire conducted according to its operating mode of the ventilation systems in the platform: no operation of any ventilation systems, smoke extraction mode in occurrence of fire (presently running mode) and full capacity of smoke extraction where all vents are activated in the platform. The results can be used for comparing with the numerical prediction results of fire subway stations.

A Economic Feasibility Analysis of Energy Saving Technology Application to Underground Subway Station

  • Kim, Hyungchul;Shin, Seungkwon;Jung, Hosung;Kim, Jin-o;Cha, Junmin
    • International Journal of Internet, Broadcasting and Communication
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    • v.7 no.2
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    • pp.36-40
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    • 2015
  • In Korea, new total energy-saving solution has planned to build test-bed in underground subway station. Breaking energy is one of the most energy saving method in railway, but it has not be fully used up for economical purpose. This paper demonstrates on energy saving technology application including breaking energy and heating energy to underground subway station. It also offer solution of optimization of power energy flow. Moreover, economic feasibility analysis performed for undergound test bed constuction.

The Study of Crowd Movement in Stair and Turnstile of Subway Station (지하철 역사에서의 계단 및 개찰구 군중흐름에 관한 연구)

  • Kim, Myeoung-Hun;Kim, Eung-Sik;Cho, Ju-Ho
    • Journal of the Korean Society of Safety
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    • v.24 no.3
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    • pp.88-95
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    • 2009
  • Most of subway stations are located underground and the number of passengers is far more than that of designed value, therefore the risk of accident is growing bigger and serious damage is expected in case of disaster. In Korea the period of evacuation study is short and numerical and experimental data of evacuation phenomena in subway station is rare. Many egress evaluation depend on foreign commercial S/Ws which are not yet proven its availability in special case such as subway station. In this paper outflow coefficients which are essential in egress evaluation are calculated at train door, stairway and turnstile at 3 most crowed subway stations. This numerical data can be used in prediction of egress evaluation and the result of other prediction methods can be verified with these experimental data.

ANALYSIS OF SMOKE SPREAD EFFECT DUE TO THE FIRE STRENGTH IN UNDERGROUND SUBWAY-STATION (대심도 역사의 화재강도에 따른 연기확산 영향 분석)

  • Jang, Yong-Jun;Koo, In-Hyuk;Kim, Hag-Beom;Kim, Jin-Ho
    • 한국전산유체공학회:학술대회논문집
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    • 2011.05a
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    • pp.373-378
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    • 2011
  • As the number of deeply-underground subway station(DUSS) increases, the safety measures for DUSS have been requested. In this research, Shingumho station (The line # 5, Depth: 46m) has been selected as case-study for the analysis of smoke-spread speed with the different fire strength. Field test data measured for actual fan in DUSS was applied as a condition of a simulation. The whole station was covered in this analysis and total of 4 million grids were generated for this simulation. The fire driven flow was analyzed case by case to compare the smoke-spread effect according to the fire strength. in order to enhance the efficiency of calculation, parallel processing by MPI was employed and large eddy simulation method in FDS code was adopted.

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Indoor and Outdoor Formaldehyde Concentrations in Underground Environments (실내외 포름안데히드 농도에 관한 조사연구)

  • 김윤신;김미경
    • Journal of Environmental Health Sciences
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    • v.15 no.2
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    • pp.1-9
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    • 1989
  • A pilot study was conducted in order to measure indoor and outdoor formaldehyde levels during August 3 - 22, 1988 in several underground spaces in Seoul. Formaldehyde concentrations were monitored during 1 week in selected sampling areas (subway station, underground shopping center, underpass, tunnel, underground parking lot) using passive formaldehyde monitors. In order to investigate a relationship between respiratory prevalence and levels of formaldehyde, each subject was asked to answer respiratory questions. The mean formaldehyde concentrations were 60.1 ppb in subway station, 122.2 ppb in underground shopping stores, 72.1 ppb in underpasses, 39.7 ppb in tunnel, and 75.9 ppb in underground parking lots, respectively. The mean indoor formaldehyde concentrations in underground environments varied from 28.6 ppb to 118.7 ppb. Generally, the mean formaldehyde concentrations in ticketing office in subway stations appeared higher than those level measured in platform. The mean formaldehyde concentrations of underground shopping center in Gangnam Terminal were higher than any other areas and it exceeded 100 ppb of the American Ambient Air Quality Standards of formaldehyde. Prevalence rates of respiratory symptoms of dwellers seemed to be related to higher indoor formaldehyde levels.

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