• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.1057-1064
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• 2004

For New In-Cheon Airport. South Approach Section of Young long Great Bridge is to be special concerned to CWR due to substructure was already constructed former railroad bridge design specification. So we applied maintenance free system and CWR (Continuous Welded Rail) by ZLR(Zero Longitudinal Restraint) at bridge expansion joint part. This thesis generally introduce for CWR by ZLR at South Approach Section of Young long Great Bridge.

• 한국산학기술학회논문지
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• 제17권7호
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• pp.23-30
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• 2016

공항 철도 연계 시설 확충 사업에 따라 수색역구내에서 공항 철도로 연결선(L=2.2km)을 건설하고 신호 시스템 및 정거장을 개량하여 경의선 수색역에서 공항 철도로 경부선 및 호남선 고속열차(KTX)를 직결 운행 할 수 있도록 하였다. KTX/AREX 열차의 혼용 운행에 따른 AREX 전동 열차의 신호 시스템은 기존과 동일한 ATC /ATO 방식으로 운행하고 KTX 고속 열차는 ERTMS/ETCS L1 ATP 방식을 신설하여 운행하기로 하였으나 "고속 열차(KTX)와 공항 철도의 지상 신호 설비" 간 및 "공항 철도 차량(AREX)과 고속 열차용 ATP 시스템 지상 설비간 상호 간섭 등의 문제점으로 인하여 고속 열차 운행이 불가능하게 되었다. 이에 공항 철도 비콘과 KTX 열차용 발리스의 특성을 비교 분석한 결과 상호 간섭에 대한 기술적 보완이 필요함을 확인하게 되었다. 따라서 이러한 복합적인 문제의 해결과 기술적 타당성을 확인하기 위해 3가지 유형의 시험 모듈로 실제의 열차를 이용하여 시험을 함으로서 "고속열차(KTX)와 공항 철도 지상 신호 설비간" 및 "공항 철도 전동차(AREX)와 고속 열차용 ATP시스템 지상 설비" 간 상호 간섭 등의 문제점을 해소하고자 한다.

• 한국항공운항학회지
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• 제28권3호
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• pp.18-26
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• 2020

Cost reduction and equality by exempting re-scanning of passengers, baggage and cargo secured from the first airport of departure, mainly in the European Union/European Economic Area(EU/EEA), Switzerland, etc. One-Stop Security(OSS) is being promoted to maintain the level of security while increasing speed and convenience, and movement is expected to expand worldwide. Therefore, this paper establishes the basic concept of OSS through a literature review of ICAO Standards and Recommended Practices(SARPs), and analyzes the actual conditions of OSS implementation in major countries such as the United States and the EU. It is intended to present the political, economic benefits for Korea and highlight the urgency of implementing the OSS system in the aviation industry including the cargo sector. Therefore, the practical implications of strengthening international cooperation through the expansion of government and airport operators OSS implementation to overcome the resource shortage problem of the existing national air cargo security system and to strengthen the status as a global aviation powerhouse were drawn up. There is academic significance that it raised the need for effective implementation of OSS, which was not previously covered.

• Geomechanics and Engineering
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• 제12권3호
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• pp.399-415
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• 2017

A series of direct shear tests were conducted to investigate the frictional properties of the interface between structures and the filling soil of Chongqing airport fourth stage expansion project. Two types of structures are investigated, one is low carbon steel and the other is the bedrock sampled from the site. The influence of soil water content, surface roughness and material types of structure were analyzed. The tests show that the interface friction and shear displacement curve has no softening stage and the curve shape is close to the Clough-Duncan hyperbola, while the soil is mainly shear contraction during testing. The interface frictional resistance and normal stress curve meets the Mohr-Coulomb criterion and the derived friction angle and frictional resistance of interface increase as surface roughness increases but is always lower than the internal friction angle and shear strength of soil respectively. When surface roughness is much larger than soil grain size, soil-structure interface is nearly shear surface in soil. In addition to the geometry of structural surface, the material types of structure also affects the performance of soil-structure interface. The wet interface frictional resistance will become lower than the natural one under specific conditions.

• 대한안전경영과학회지
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• 제6권1호
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• pp.81-96
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• 2004

Globalization of Economic activities have increased Company's interests about International Logistics Management. Expansion of International trade depends on International Logistics which can overcome distance and time. In In-cheon, There are many small scale and minor Freight Forwarders take advantage of being linked with a port, an airport but their inefficient paper works cause raising of Logistics costs and losing of competitive power. In this study, we design a web based ocean forwarder information system for freight forwarder to solve these problems. So, this system will provide decreasing operation time, human resources, and accessing easily because of web based system, and finally decrease logistics cost and improve national competitive power.

• 한국항만경제학회지
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• 제20권2호
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• pp.187-216
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• 2004

Northeast Asia logistics hub strategy was undertaken by Korean Government to gain a national competitive advantage in Northeast Asia. Current Government has Northeast Asian Economic Hub Strategy including construction of SOC in Northeast Asia for promoting peace, promotion of formation of Northeast Asia Community, logistics hub, Financial hub and national innovation for R&D Cluster. To realize Northeast Asian logistics hub, the Northeast Asia logistics hub road map has undertaken as follows: expansion of logistics infra in Incheon Airport, Busan Port and Gwangyang Port, systematic improvements such as adjustment of investment distribution, special logistics companies, transparent customs in logistics transactions, logistics manpower, improvement of system supporting global logistics and attraction of international logistics companies to the logistics center, construction of seamless and paperless logistics information network, Northeast Asia railway infra. The purpose of this paper is to study investment priority and improvements in the Northeast Asia Logistics Hub Road Map and to contribute to gain the national competitive advantage as logistics hub in Northeast Asia

• 조명전기설비학회논문지
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• 제14권3호
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• pp.59-67
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• 2000

본 연구는 확장하연서도 적용하기 어려운 계통인 인천국제공항 배전계통에 대하여 전력공급제한을 포함하는 종합적언 선협도평가를 하였다. 우선, 계통의 선로제약 및 전압강하를 고려한 평가를 하기 위하여 확정론적인 방법과 고장모드-효과분석법에 지반을 푼 PLOC지법을 도입하고, 신뢰도지수를 계산하었다. 또한 계통의 능력을 평가하고, 신뢰도를 개선하기 위하여 ANP를 도입하였다. 이와같은은 결과로 정확한 신뢰도를 계산하교 취약부분을 찾아내고, 계통의 확장계획을 수립하는 것올 가능하게 하였다.

• 화약ㆍ발파
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• 제33권2호
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• pp.40-43
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• 2015

본 연구에서는 싱가폴 창이 국제공항 신규 터미널(5번) 확장 지반 보강공사에 적용된 진동다짐공법을 소개하고 이에 따라 발생되는 진동을 장기간 실시간으로 측정하기 위하여 최적의 진동 분석 S/W 개발을 완료하였다. 아울러 이와 유사한 파일항타 작업 진동이나, 방파제 설계를 위한 주기적 반복적으로 발생하는 파도에 의한 진동이나 초고층 건물, 터널, 교량 등 대형구조물에서 발생하는 진동을 장시간에 걸쳐 실시간으로 측정이 가능함을 알아보고자 하였다.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2003년도 추계학술대회
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• pp.297-302
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• 2003

Globalization of Economic activities have increased Company's interests about International Logistics Management. Expansion of International trade depends on International Logistics which can overcome distance and time. In In-cheon, There are many small scale and minor Freight Forwarders take advatage of being linked with a port, an airport but their inefficient paper works cause raising of Logistics costs and losing of competitive power. In this study, we develop a web based ocean forwarder information system for freight forwarder to solve these problems. So, this system will provide decreasing operation time, human resources, and accessing easily because of web based system, and finally decrease logistics cost and improve national competitive power.

• 한국항공운항학회지
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• 제31권4호
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• pp.7-18
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• 2023

The continuous increase in air traffic emphasizes the importance of capacity calculation. Research on the calculation method of Terminal Control Area (TMA) capacity has been treated as a partial aspect of the airspace sector capacity or has been limitedly studied. This study aims to propose a mathematical model for calculating TMA capacity, taking into account the Standard Terminal Arrival Route (STAR), separation standards, TMA entry speed, and runway threshold passing speed. The proposed model has the advantage of being able to calculate the instantaneous arrival capacity, which has not been noted in previous studies, along with the throughput. Additionally, it is meaningful as the model can easily calculate the arrival capacity of the TMA considering airport construction, runway expansion, or new procedures.