• Journal of Korean Tunnelling and Underground Space Association
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• v.23 no.5
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• pp.339-357
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• 2021

As the construction of trans infrastructure using the underground tunnel have been rapidly increased, various nearby excavation of existed underground facility including subway structure has been occurred in urban tunnelling. The concern and worry relating to the safety and stability of the existed facility by nearby excavation is becoming the key issues in urban tunnelling. In this study, it was conducted for existed the subway station structure at Seoul subway line which was closely located in the new Dongbuk urban metro railway to determine the behavior characteristics of station structure according to adjacent tunnel construction. Also, it was reviewed the evaluation of the safety zone and excavation method for subway structure. And after a review of damage evaluation, track irregularities and structural calculation by using a numerical analysis, stability of the subway structure according to nearby tunnel excavation was evaluated to be secured. This study is expected to be applied as useful reference in advance if you need to review the effects of existed structure according to nearby construction in complex urban tunnelling.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.663-666
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• 2005

공간정보의 처리에는 방대한 양의 자료가 분석되어야 하므로 강력한 컴퓨터 하드웨어와 소프트웨어의 성능이 뒷받침 되지 못했던 80/90년대와 달리 최근에 비약적인 발전을 가져온 분야중의 하나이다. 공간자료구조는 지리정보시스템(GIS)의 핵심엔진으로서 이를 활용한 공간정보의 분석과 처리는 수많은 응용을 갖고 있으며 파생되는 응용분야가 날로 증가하고 있는 추세에 있다. 그러나 대부분의 지리정보는 지상에 대한 것으로서, 지하정보에 대한 연구는 지하정보의 비가시적인 특성상 현재 초기단계라고 할 수 있다. 본 논문은 탄성파를 이용하여 얻어진 지하 지층구조 정보를 분석하여 지층구조를 파악하고, 공간자료구조를 활용하여 지하 단층대를 분석하고 검색하는 시스템 개발 방법을 제안하고 이와 관련된 사항을 기술하였다. 지하 단층대의 확인 작업은 다양한 지상/지하 구조물의 안정성에 중요한 역할을 하는 자료가 된다. 공간자료구조를 활용하여 지하지층을 인식하는 시스템의 개발은 지질 전문가의 해석을 위한 전처리 시스템으로서 중요한 역할을 할 것이다.

• International Journal of Highway Engineering
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• v.13 no.3
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• pp.131-137
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• 2011

The development of underground space essentially leads to increase in construction cost and installation of a large structure also acts as a factor deteriorating fine sight of the city. Accordingly, there recently is a trend to make city center structures light and small if possible. In this study, for efficient development of underground space, we analyzed the change in the average delay time in comparison to the existing underpass and the influence thereof using a microscopic simulation software VISSIM 5.20 after controlling heavy vehicles not to use the underpass and to detour using the intersection above the underpass, and gradually increasing the ratio of heavy vehicles in accordance with v/c of the access road in order to examine efficiency of introducing an underpass exclusive to small cars at an underground road installed and being operated in a city road area, and presented installation standard for underpass exclusive to small vehicles adequate to the traffic characteristics. Considering the findings of the study, introduction of underpass exclusive to small cars judged to be beneficial in the aspects of reduction in the economic loss resulting from land purchase, environmental damage due to construction of large traffic structures and environment-friendly green traffic.

• Magazine of korean Tunnelling and Underground Space Association
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• v.6 no.3
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• pp.28-38
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• 2004

• Magazine of korean Tunnelling and Underground Space Association
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• v.11 no.3
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• pp.51-59
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• 2009

• Magazine of korean Tunnelling and Underground Space Association
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• v.5 no.3
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• pp.64-71
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• 2003

• Magazine of korean Tunnelling and Underground Space Association
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• v.10 no.1
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• pp.8-25
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• 2008

• Tunnel and Underground Space
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• v.1
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• pp.39-48
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• 1991

• Magazine of korean Tunnelling and Underground Space Association
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• v.21 no.2
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• pp.25-40
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• 2019

• Journal of Korean Tunnelling and Underground Space Association
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• v.20 no.4
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• pp.671-686
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• 2018

Recently, earthquakes have occurred near Gyeongju and Pohang and the social demands are thus being increased for seismic analysis of tall buildings and their adjacent underground structure in big cities. Since most of the previous seismic analysis studies considered a tall building and an adjacent underground structure separately, however, they lack the analysis on dynamic mutual behavior between two structures. Therefore, in this study, a dynamic analysis with a full soil-structure interaction was performed for a complex underground facility with a tall building and an adjacent underground structure constructed on the bedrock with a surface layer. To improve the reliability, in particular, a pseudo-static analysis was performed and compared with the dynamic analysis results. It is comprehensively concluded that the analysis of adjacent underground structures being considered is more conservative than that of not considered.