• 한국방재학회:학술대회논문집
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• 2011.02a
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• pp.216-216
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• 2011

목포는 지형 특성상 도시기반이 낮게 조성되어 있어 폭풍해일에 의한 영향이 그리 크지 않더라도 조위가 크게 상승하는 대조기에 해안 저지대에서는 침수범람이 빈번하게 발생하는 지역이다. 특히 1997년 8월 태풍 WINNIE(9713)와 2004년 7월 태풍 MINDULLE(0407)의 간접영향시기가 대조기 고조와 중첩됨에 따라 목포 내항 및 북항 일대에 해수범람 피해가 발생한 바 있으며, 이러한 피해에 대응하여 목포 해안시설물 표고는 1997년 이전의 D.L.(+)480~500cm(목포지방해양수산청, 1998)를 D.L.(+)550cm로 증고한 상태이다. 태풍이 발생하여 내습하는 시기에 해당하는 2010년 7월~9월까지 목포지역 조석예보표(www.khoa.go.kr)에 따르면 거의 매달 500cm 이상의 조위가 예측(최고 511cm, 2010년 8월 11일)되었고, 2004년 범람이 발생한 7월과 8월에는 5.2m 이상의 조위가 3회 이상 예측된 바 있다. 또한 2000년 이후 목포지역의 태풍에 의한 해일고가 매년 50cm 내외로 기록(최고 59 cm, 태풍 RUSA(0215)됨을 고려할 때 D.L.(+)550cm의 목포 해안시설물 표고는 범람피해로부터 안전을 확보하기에는 어려움이 있을 것으로 우려된다. 특히, 최근 2년 동안은 우리나라에 직접 영향을 미친 태풍이 없었으나, 올해 8월 중순에는 대조기에 태풍 DIANMU(1004)가 내습하여 남해안 일대에 피해가 발생하였고, 올해 9월 초에 서해안으로 상륙한 태풍 KOMPASU(1007)는 강한 세력을 유지하면서 북상하여 서해안 일대 및 수도권에 큰 피해가 발생하였다. 만약 태풍 KOMPASU(1007)가 태풍 DIANMU(1004)가 내습했던 대조기 또는 9월 중순의 대조기에 내습했다고 가정한다면, 목포와 같은 서남해안의 저지대는 물론 많은 해안지역에 엄청난 피해가 발생했을 것으로 사료된다. 이에 본 연구에서는 관련연구와 자료분석을 통해 목포해역의 침수범람 위험성을 파악하고, 올해 발생한 태풍의 수치모의 적용을 통해 위험성을 검토하고자 한다.

• Journal of Korean Tunnelling and Underground Space Association
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• v.6 no.4
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• pp.345-356
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• 2004

Open-cut method has been widely used to construct underground structures, but it causes several problems such as traffic congestion and public resentment resulting from severe construction noise and ground settlement. In many cases, it is very difficult to build underground structures safely due to the unknown locations of buried facilities such as water pipes, drainage pipes, gas pipes and high-pressure cable conduits etc. Also in open-cut method, moving buried facilities causes additional cost and extension of construction period. Therefore, this paper is to present a case study in which Tubular Roof construction Method (T.R.c.M.), a newly developed construction method for underground structures using slab steel pipes and PC wall trench, is applied for the construction of a subway tunnel in Seoul. As a result, it is found that T.R.c.M. is a construction method by which tunnels can be constructed safely without any effect on the surrounding environment and traffic flow due to the minimized construction vibration and noise.

• Journal of Korea Multimedia Society
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• v.11 no.11
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• pp.1547-1554
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• 2008

This paper proposes a fire shunt guidance system model based on rule, it presents suitable shunt route in real-time according to collected fire information of the building inside using wireless sensor networks. So, this system model is composed of the sensor alert module, the behavior suggestion module, and the emergency device control module. The sensor alert module uses rule-base algorithm that monitored the information to collect periodically in wireless sensor networks. And, the behavior suggestion module proposed a suitable behavior, this module supports to judge the fire area with danger sensor list. Additional, the emergency device control module controls a related emergency device according to the suggested behavior and to present on a control screen. We experiment the fire shunt guidance system based on Internet Web for operation verification of the proposed system. Consequently, this study supports people safety with the behavior suggestion according to the context information when an emergency situation happens.

• Journal of Korean Society for Geospatial Information Science
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• v.10 no.2 s.20
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• pp.97-105
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• 2002

Nowadays the gas utilities has been increasing constantly due to the expansion of the urban areas. The gas utility companies have adopted GIS technologies and been trying to computerize the management system for gas facilities to maintain up-to-dated information to forecast possible accidents and to minimize the casualties from the accidents. The major objective of this study is to develop a GIS-based gas accident management system which could facilitate early response and alternatives in the cases of the accidents. The system is able to provide the information for the pipes to be closed followed by selecting the location of the accident, and search all the relevant values connected to the location to provide all the information to minimize the casualties. In addition to that, the system can calculated the remaining amount of the gas in the pipes closed from the accident thereby providing more safer alternatives. In the future, more practical method needs to be made such as GPS-linked more integrated gas accident management system.

• Journal of Navigation and Port Research
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• v.36 no.1
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• pp.27-34
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• 2012

The systematic criteria and rational standard for site selection of marine recreational floating architecture are in urgently need in respect of structural safety, use of facilities, economics of construction and management, relationship with surrounding areas or cities and impact on marine environment. Nevertheless, at present, there is not any study nor guideline for site selection of marine recreational floating architecture which is now being planned and elected at many places of a body of water such as river or coastal area all over the country. Therefore this study is to propose a systematic process and a rational criteria and guideline for site selection of marine recreational floating architecture. Especially the results are suggested in forms of diagrams and tables in order to be utilized so easily by related local governments and individual enterprises.

• Journal of the Korean Society for Railway
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• v.15 no.1
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• pp.17-22
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• 2012

Installation of screen doors at platform ensures safety of passengers by separating platform from tracks. Besides, it reduces drought and air pressure caused by train conserves heating and cooling energy in the station. In order to guarantee safety of platform screen doors, design considering evaluation of wind pressure requires. In this study, Sosa station, semisealed screen door and EMU are analyzed to estimate the wind pressure of platform screen doors model. Also Sosa station is influenced by climatic condition because it exposed to outside. Therefore, analysis on the wind pressure of platform screen doors is performed under the worst weather condition such as typhoon. The results of analysis, Maximum inside pressure 287 Pa, and consideration of outside pressure as typhoon to the maximum design pressure of 865 Pa 2756.25 Pa conditions approximately 3.1 times the difference can be seen that ensure stability.

• Tunnel and Underground Space
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• v.22 no.1
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• pp.43-53
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• 2012

Stability of cut-slope, the orientation and dimension of which are gradually changed, has been analyzed by employing the cross-section method capable of comprehensibly considering the lithological, structural and mechanical characteristics of slope rock. Lithological fragility is investigated by inspecting the drilled core logs and BIPS image has been taken to delineate the rock structure. Engineering properties of drilled-core including the joint shear strength have been also measured. Potential failure modes of cut-slope and failure-induced joints are identified by performing the stereographic projection analysis. Traces of potential failure-induced joints are drawn on the cross-section which depicts the excavated geometry of cut-slope. Considering the distribution of potential plane failure-induced joint traces blocks of plane failure mode are hypothetically formed. The stabilities and required reinforcements of plane failure blocks located at the different excavation depth have been calculated to confirm the applicability of the cross-section method for the optimum cut-slope design.

• International Journal of Highway Engineering
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• v.13 no.1
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• pp.69-77
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• 2011

This study is to suggest a methodology to overcome the uncertainty and lack of reliability of data. The fuzzy reasoning model and the neural network model were developed in order to overcome the potential lack of reliability which may occur during the process of data collection. According to the result of comparison with the Poisson regression model, the suggested models showed better performance in the accuracy of the accident frequency prediction. It means that the more accurate accident frequency prediction model can be developed by the process of the uncertainty of raw data and the adjustment of errors in data by learning. Among the suggested models, the performance of the neural network model was better than that of the fuzzy reasoning model. The suggested models can evaluate the safety of signalized intersections in operation and/or planning, and ultimately contribute the reduction of accidents.

• Proceedings of the Korea Water Resources Association Conference
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• 2008.05a
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• pp.1713-1716
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• 2008

최근 배출되는 미량유해물질로 1991년 페놀, 2004년 1,4-다이옥산, 2006년 퍼클로레이트 검출 등 빈번하게 원수수질 오염사고가 발생하고 새로운 미량유해 화학물질의 배출이 우려됨에 따라, 일부 시민단체, 시의회, 언론 등에서 깨끗하고 안전한 상수원수 확보를 위한 근본적인 대책을 요구하는 목소리가 커지고 있다. 이에 대한 대책의 일환으로 취수원 이전에 대한 타당성 등이 검토되고 있다. 이러한 요구를 바탕으로 본 연구에서는 K-WEAP 모형을 이용하여 낙동강수계 물수지 분석을 실시하였다. 관련된 기존자료를 이용하여 용수수요량을 산정하였으며, 갈수량시 물수지 분석을 실시하였다. 연구에 사용된 K-WEAP 모형은 SEI-B(Srockholm Environment Institute, Boston Center)에서 개발된 WEAP에 기반을 두고 우리나라에 특성에 맞게 모의형태를 개선하고 한글화한 모형으로 분석대상 지역으로서 도시지역과 농업지역, 단일 소유역이나 복잡한 하천유역의 물 수요-공급 시스템에 적용할 수 있다. 또한 K-WEAP 모형은 용수목적별 수요량 분석, 물 절약, 수리권과 배분 우선순위, 지하수와 하천유량 모의, 저수지 운영, 수력발전, 오염물질 추적, 생태계 필요수량 분석과 같은 광범위한 부문의 문제들까지 다룰 수 있다. 본 연구에서 물수지 분석에 사용된 대상구간은 낙동지점에서 고령교지점까지 약 120km이며, 낙동강에 유입되는 지류로는 감천과 금호강을 대상에 포함하였다. 대상구간에 대해서는 3가지의 시나리오를 바탕으로 모의를 진행하였다. 선정된 3가지 시나리오는 현재의 대구 인근지역의 취수와 방류를 고려하는 상태와 현실가능성이 있는 2가지의 대안에 대해서 분석을 실시해 보았다. 대안들은 각각의 대구 취수시설을 구미 상류로 이전하여 취수하는 상황과 구미지역 및 칠곡지역의 방류구 시설을 하류로 이전하여 방류하는 상황으로 가정하여 분석을 실시하였다. 분석결과 현재 상태의 시나리오에서만 갈수기시 만족할 만한 결과를 보여주었고 나머지 2가지의 시나리오에서는 유량이 부족함을 나타났다. 현재의 상태를 모의한 시나리오를 제외한 시나리오의 분석에서는 갈수기 시에 물 부족을 겪게 된다. 이는 낙동강 상류에서 추가방류가 없으면 해결되지 못하는 상황으로 다른 대안들(신규 댐 방류 등)에 대한 추가적인 시나리오 분석이 필요할 것으로 판단된다.

• Journal of the Korea Society of Computer and Information
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• v.19 no.7
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• pp.95-102
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• 2014

There are a variety of structures below the surface are buried. In particular, if It is experiencing problems in the city gas pipe or electrical wire, our safety would be greatly jeopardized. Therefore, the underground structures which encounter a variety of pollutants are highly sensitive to corrosion. So if you are not identify the degree of corrosion, it can lead to large accidents such as gas leakage. Until now, person visit directly every underground structure to measure and record manually, but This approach requires a lot of human and material resources and the continuity of management. Therefore, the research to find out the risk factors quickly via the continuous management is needed, and in this paper the structures management systems in the vehicle being moved by combining ICT underground structures for state information wirelessly collects and analyzes system is proposed.