• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.232-239
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• 2001

Young Jong Grand Bridge is approach traffic road of New Inchon International Airport which covers hub airport function in northeast asia. The total span length of this bridge is $4,420{\cal}m$ and this main bridge type is, the first in the world, Double Deck Self Anchored Suspension Bridge, designed as double deck systems to be arranged by road and railroad. Approach bridges to be connected with main span also are composed double deck steel truss and steel box girder to consider a continuity with this span. Our company erected $1,375{\cal}m$(about 60,000tons) of double deck steel truss bridge type which is composed by 6 traffic lane on upper deck and 4 traffic lane and Double track railroad on lower deck. The original installation method of this bridge was planed to install about 75 meters bridge blocks to use floating crane, after temporary bent was constructed between permanent piers. But this method which had to construct many temporary bents in the sea had the matter that construction periods can become lengthen and construction cost can be risen. To overcome the uncertainty to ensure high qualify of bridge and economic project execution, our company developed new bridge erection method to assure both quality control and economic construction work. The new erection method which was developed by us was one that could transport and install long bridge block, $120{\cal}m$ unit at a time and that temporary bent was not required. We hope that this paper is used as technical data which will erect bridge in the western sea and others marine region.

• Journal of Ocean Engineering and Technology
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• v.22 no.5
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• pp.142-147
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• 2008

The cases of using new methods of big blocks are largely increasing on Recent large-scale bridge structures. So the accurate data of responses of bridges following environmental causes are required to be quickly recorded in order to predict. For this reason described above, the research on measuring system should be conducted for more knowledge of the details on application and stability of new methods. In this study, the new health monitoring system that can monitor the real behavior and damages of the bridge during all processes of construction is presented by analyzing cases of domestic and overseas bridge health monitoring system, and applied methods of following bridges.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1998.09a
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• pp.61-64
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• 1998

서해안시대의 개막과 함께 서해안 일대의 개발이 활발해지면서 서해대교, 영종대교 같은 대규모 해상교량의 건설이 이루어지게 되었다. 이들 구조물의 건설로 인해 흐름이 변하고 유속이 증가하면서 구조물의 안전에 심각한 영향을 미칠 세굴이 관심사로 떠올랐다. 하지만 해상세굴에 대해 연구된 기존의 자료가 거의 전무한 실정이므로 현장에서 직접 세굴의 진행과정을 관찰하는 것이 절대적으로 필요하다. (중략)

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 1998.09a
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• pp.51-55
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• 1998

서해대교가 건설중인 아산만은 세계적으로 조수간만의 차가 크기로 유명한 곳이며 해저지반 또한 실트질이나 풍화토로 이루어져 세굴에 취약한 지형이다. 더욱이 아산만의 개발 및 공사중 축조된 축도로 인한 통수단면적의 감소로 실제 유속이 2.7㎧에 이르고 있다. 이러한 유속의 증가는 조석의 왕복운동과 함께 교량세굴을 촉진하였고 교량의 안전을 위해 세굴의 추이를 면밀히 검토할 필요가 대두되었다. (중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.533-535
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• 2013

압해-암태 1공구에 대한 해상교통안전지단을 실시하여 시공사가 공자를 진행 중이다. 해상교통안전진단을 실시하여 공사 중 안전대책을 제시하였으나 해상교각에 대한 접촉 사고 및 등부표 접촉사고가 빈발하고 있다. 이에 해상교통안전진단의 실시 후 안전 진단의 결과인 안전대책이 제대로 시행되고 있는지, 추후 해상교통안전진단이 필요한지 여부에 대해 고찰하고자 한다. 암해-암태 1공구에 대한 해상교통안전진단보고서의 공사 중 안전대책을 분석하고, 해양사고의 발생 현황 및 원인분석을 통해 안전 진단제도에 대한 개선방안을 제시하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.515-517
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• 2013

We carried out the maritime safety audit for Sandal Water Bridge constructed between Geje-Do and Sandal-Do in 2015. To study as to whether can be secured the marine traffic safety for this area, this research investigated and performed the marine accident, marine traffic volume, the marine traffic flow simulation and shiphandling simulation. It is considered to be required the quantitative guidelines for maritime safety audit including audit target area and formal audit object etc.

• Magazine of the Korea Institute for Structural Maintenance and Inspection
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• v.17 no.3
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• pp.2-5
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• 2013

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2008.09a
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• pp.120-123
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• 2008

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2008.09b
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• pp.120-123
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• 2008

• Geotechnical Engineering
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• v.33 no.6
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• pp.28-42
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• 2017