• 대한안전경영과학회지
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• 제15권1호
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• pp.69-75
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• 2013

Namsan road are taxis in the engine room fires (07/14/2011 18:05) in the tunnel, and the driver of the vehicle was 100 passenger car and more than 500 evacuated were disasters. Pole road vehicles within the tunnel if there is a fire tunnel fire occurred at a two-way evacuation difficult and rapid evacuation is difficult and mass casualties are concerned, the number of casualties is feared. In this study, by considering the problems and improve the Namsan 1,2,3 Tunnel In case of fire, the best disaster response is to come up with ways.

• 한국산업융합학회 논문집
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• 제5권4호
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• pp.313-320
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• 2002

A 2-dimensional $k-{\varepsilon}$ numerical model was developed to explore the effects of vehicle movement, jet fan and wind speed for the ventilation of road tunnels. To consider the temperature distribution in the tunnel, the energy equation was solved with a source term of the energy exhausted from vehicles. Although the tunnel ventilation can be made by the piston effect of vehicle movement, an additional ventilation is necessary when a head wind is existing. Jet fans may assist the air flow in the tunnel. However, more efficient ventilation system should be necessary, because the exhaust gas from vehicles flow along the road surface and it cannot be diffused in the longitudinal tunnel.

• 한국터널지하공간학회 논문집
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• 제20권3호
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• pp.561-573
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• 2018

도로 터널 내의 환기설계를 위해서는 먼저 각 차종별 교통량 구성 비율을 알아야 한다. 일반적인 도로터널의 경우 입구와 출구의 수가 동일하고 일방향이기 때문에 유입된 차종별 구성 비율이 출구에서 나올 때까지 달라지지 않는다. 반면에 네트워크 도로터널의 경우 터널 내의 연결이 복잡한 네트워크로 되어 있기 때문에 차종별 구성 비율이 달라진다. 이에 본 연구에서는 근접행렬을 이용하여 네트워크 도로터널에서 차종별 일교통량 구성 비율을 쉽게 계산할 수 있는 방법을 제시하였다.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2005년도 동계학술발표대회 논문집
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• pp.75-81
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• 2005

The Necessity of TAB for the facilities of Ventilation and Safety system in a road tunnel is studied. TAB is to test, adjust and balance a system. The study is to investigate the advantage which results from carrying out TAB, with the measurement of temperature, velocity and pressure. The method of measurement of these factors and TAB procedure are a]so explained.

• 한국도로학회논문집
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• 제14권6호
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• pp.103-110
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• 2012

PURPOSES : In Korea, over 70 percent of the land consists of mountainous and rolling area. Thus, tunnels continue its upward trend as road network are extended. In these circumstances, the importance of tunnel has been increased nowadays and then its safety investigation and research should be performed. This study is focus on confirming and improving the safety of tunnel. On tunnel hood, sunglare effect can irritate driver's behavior instantly and this can result in incident. METHODS : The study of this phenomenon is rarely conducted in domestic and foreign papers, so there is no proper measure for this. This study analyzes the driving environment of the effect of sunglare effect on tunnel hood. RESULTS : Traffic accidents stem from complex set of factors. This study build the Traffic Accident Prediction Models to find out the effect of sunglare effect on tunnel's hood. The independent variables are traffic volume, geometric design of road, length of tunnel and road side environment. Using these variables, this model estimates accident frequency on tunnel hood by Poisson regression model and Negative binomial regression model. Although Poisson regression model have more proper goodness of fit than Negative binomial regression model, Poisson regression model has overdipersion problem. So the Negative binomial regression model is used in this analysis. CONCLUSIONS : Consequently, the model shows that sunglare effect can play a role in driving safety on tunnel hood. As a result, the information of sunglare effect should be noticed ahead of tunnel hood so this can prevent drivers from being in hazard situation.

• 한국터널지하공간학회 논문집
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• 제14권2호
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• pp.141-157
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• 2012

TBM 공법 적용을 위한 도로터널 단면의 국내 외 설계사례와 시공사례 및 터널단면 설계기준을 조사 분석하였다. 교통량에 따라 차로수의 규모 및 내부형상(단층 혹은 복층)이 상이하였고, 상 하부의 여유공간은 환기, 방재시설 및 유지관리 공간 등으로 다양하게 활용하고 있음을 확인하였다. TBM도로터널의 구성요소별 면적비를 확인하기 위하여 2차로 규모의 표준단면을 가정하고, 길어깨 폭원변화에 따른 내공단면 구성요소(시설한계 수용공간, 상부여유공간, 하부여유공간)의 단면적비를 분석하였다. 아울러 도로터널에 필수적으로 설치되는 차도 슬래브의 지지형식별 소요두께를 구조해석을 통하여 산정하였고, 산정된 벽체 및 슬래브 두께와 하부 여유공간의 상관관계를 분석하여 유효단면적 범위를 제시하였다.

• 대한토목학회논문집
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• 제29권5A호
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• pp.551-555
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• 2009

본 연구는 도로터널 내 화재시 콘크리트 구조체의 내화성능을 평가하기 위한 기준을 제시하고자 실시하였다. 현재 국내에서는 지형특성 및 환경친화적인 도로건설로 도로 터널의 수가 빠른 속도로 증가하며, 터널연장이 길어짐에 따라 터널 내 화재사고가 갈수록 높아지고 있는 상황이다. 하지만 우리나라에서는 터널 화재에 대한 적합한 시간-온도 곡선을 규정하지 못하고 있는 실정이다. 따라서 본 연구에서는 국내 도로의 통행량, 차량 종류등을 고려한 열방출율을 기초로 외국에서 제시된 시간-온도 곡선을 검토해 보았으며 적합한 설계화재 모델을 적용하였다. 또한 적용된 도로터널의 설계화재모델에 따른 수치해석을 통하여 터널 구조체의 화재시 성능을 검토하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.337-344
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• 2007

This paper is about the examination and selection of the special method applied to the railway tunnel which will lie under the road. Moreover, the road was constructed on the weak ground. Eventually, we select DSM, considering geological condition, stability during construction of the railway tunnel, and economic efficiency. The 3D-analysis, performed with PENTAGON-3D and MIDAS CIVIL-3D, shows that allowable standards are all satisfied. In the design of the railroad tunnel under the road at low depth, this paper will give useful data for the selection of the tunneling method.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2008년도 동계학술발표대회 논문집
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• pp.67-70
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• 2008

As a part of the project on road tunnel fire safety system development, Quantitative Risk Assessment program was developed. In this study, We carried out Quantitative Risk Assessment with this program by using a factor of cross passage interval, warning announcement time and congestion ratio etc for 1km tunnel with natural ventilation. In the case of 250m below of cross passage interval, Risk value due to warning announcement time was a slightly changed. but if cross passage interval is more than 250m, expected fatalities in the same HRR(heat release rate) was sharp increased. As a result, Quantitative Risk Assessment program which was developed in this research project is possible to risk assessment with ventilation type, cross passage for evacuation and detection system response property etc. hereafter, this program look forward to use as a tool for road tunnel performance based design.

• 한국산업융합학회 논문집
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• 제27권1호
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• pp.25-37
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• 2024

The objective of this study was to create intelligent rail robots that are optimized for facility management and implement digital twin systems for smart road tunnel management. An autonomous surveillance system is formed by combining the sensing platform consisting of railing robots, fixed cameras and environmental detection sensors with the digital twin data platform technology for tunnel monitoring and early fire suppression. In order to develop mobile rail robots for fire extinguishing, we also designed and manufactured robots for extinguishing & monitoring and fire extinguishing devices, and then we examined the optimization of all parts. Our next step was to build a digital twin for road tunnel management by developing continuous image display system and implementing 3D modeling. After constructing prototypes, we attempted simulations by configuring abnormal symptom scenarios, such as vehicles fires. This study's proposal proposes high-accuracy risk prediction services that will enable intelligent management of risks in the tunnel with early response at each stage, using the data collected from the intelligent rail robots and digital twin systems.