• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 C
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• pp.1828-1830
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• 1996

In this study, We developed the optical fiber incorporated high-voltage underground power cable which is combined optical fibers with conventional high-voltage underground power cable. Optical-Unit that optical fiber is inserted in stainless tube is tested, and we got good results enough to safe optical fibers. Also we put the optical fiber incorporated high-voltage underground power cable to the test of electrical characteristics and optical characteristics, we knew that the electrical characteristics were the same characteristics as conventional high-voltage underground power cable and the transmission loss change was almost zero.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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• pp.346-348
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• 2007

Underground pipe is an instrument to transport rapidly and safely a lot of fluid like gas, oil, water supply and drain system. It acts like blood vessels of human body in a modern industry. As in this country, the pipe facilities have been constructing since 1970's. The pipes constructed for a long time ago are already starting to reveal the problem like corrosion and most of them are built underground. So for companies, the managing of the underground pipes is very hard because it needs high technology and a lot of money. So we made a new robot system to repair and maintain the pipes at a low price. This new robot is devised using pressing wall type to work inside 700${\sim}$900(mm) size pipe. And it has good carrying and working power.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 가을 학술논문 발표대회
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• pp.50-51
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• 2020

Recently, various maintenance materials and construction methods have been developed to secure the sustainable performance of structures. However, waterproofing of underground structures where groundwater infiltration is present is very difficult. In particular, the location of underground structures such as subways is very deep, and it is difficult to apply waterproof materials and construction methods in the case of structures accompanied by vibration. Therefore, we intend to study materials and methods for waterproofing leakage resistance in special environments such as underground structures.

• 터널과지하공간
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• 제6권4호
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• pp.326-334
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• 1996

In underground construction the multi-step excavation sequence is commonly adopted for the convenience of the underground work. A numerical simulation method which is capable of analyzing the effects of excavation sequence on the stability of the opening is greatly needed. In this study a two dimensional finite element code was developed based on the effective numerical algorithm for the multistep excavation. The practical applicability of the model was verified for the simplified excavation sequences.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.501-503
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• 2001

Electric power consumption is highly increasing as the social trend requiring comfortable life, the population in a big city and the industrial development. Therefore it has become to be very important to supply the stable high-quality power. As these trend, the underground power transmission facility is highly increasing in the center of a city. As the proportion to increase facility in tunnel, the fire prevention measures of the underground transmission line become very important.

• 한국측량학회지
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• 제39권4호
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• pp.245-252
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• 2021

지하시설물은 여러 관리 주체들에 의해 필요에 따라 건설되었으며 이는 곧 무질서하고 난립된 형태의 지하 공간 개발을 초래하였다. 이러한 현상은 지하 공간에서의 안전사고를 발생시키는 주요 원인으로 볼 수 있으며 이를 해결하기 위해서는 지하시설물의 체계적인 구축 및 관리에 관한 연구가 이루어져야 한다. 이와 같은 맥락에서 본 연구는 지하시설물 정보의 체계적인 구축·관리 방안과 정보의 정확도와 품질을 제고하기 위하여 공간정보 관련 국제 표준을 준용한 3차원 지하시설물의 데이터 모델을 정립하고, 이를 토대로 논리적 모델을 설계 및 시각화 구현하는 것을 목적으로 한다. 본 연구의 결과를 토대로 지상-지하를 포괄하는 현실 세계와의 일치성이 향상된 지하시설물 정보를 통해 기존 지하정보의 정확도 및 활용도를 제고할 것으로 사료된다. 또한 기존의 2차원 형태의 지하시설물 네트워크 모델과 관로 중심의 3차원 시각화 모델과는 달리 지상과 지하 공간에서의 다양한 객체들을 포함하고 데이터 간 상호 연계 및 운용이 가능한 통합적인 데이터 모델을 제시했다는 점에서 학술적 의의를 가질 것으로 판단된다.

• 한국측량학회지
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• 제39권3호
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• pp.167-177
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• 2021

지하공간에 위치한 시설물은 도시의 위생 및 안전과 밀접한 관련이 있으며, 지하공간정보를 정밀하게 구축하여 시설물의 유지 관리, 안전, 지하 공간 개발 등에 주요한 정보로 사용하고 있다. 본 연구는 국내에서 구축되어 현장에서 활용되고 있는 지하공간정보의 신뢰도를 증대하여 현장 활용성을 증대하기 위한 방안을 연구하였다. 이를 위하여 국내의 지하공간정보 관련 구축 현황을 정리하고, 공간정보 선진국인 미국, 영국, 캐나다, 프랑스, 호주 등에서 적용되고 있는 지하공간정보 품질등급제의 사례를 조사하였다. 현장 활용성 측면에서 국내의 관련 분야에서 종사하는 현장 전문가 및 수요자의 지하공간정보 관련 제도 및 기준, 관리 방안 등에 대한 설문을 진행하고, 통계 분석을 실시하여 도입에 따른 연관성을 분석하였다. 본 연구를 통하여 지하공간정보의 구축 방법, 정확도 및 신뢰도 등에 따른 품질 등급제의 도입이 필요하며 관련 제도 및 규정 등의 정비가 필요하다는 결론을 도출하였다.

• 한국실내디자인학회논문집
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• 제22권3호
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• pp.205-216
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• 2013

Korean cities need sustainable urban regeneration based on the effective application of space and resource. Especially a sustainable urban regeneration needs the activation of community in the urban underground space as urban development center. The purpose of this study is to propose elements and factors of spatial planning of community in urban underground space for sustainable urban regeneration and to propose the characteristics of spatial planning of community in urban underground space according to strategies of sustainable urban regeneration. The research methods of this study used to conduct research include precedent study reviews and survey. The conclusions of this study are as following; The application of various factors related to spatial planning aspect of communication, supportive cultural facilities, accessibility and nature is needed for creating a sustainable urban regeneration. Especially, in urban underground space, the application of spatial planning for community activation considered strategies of sustainable urban regeneration should be necessary. And introduction of cultural facilities, multi-dimensional pedestrian network for accessibility and natural elements for activating community in urban underground space are needed for making sustainable urban regeneration.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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• pp.142-143
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• 2017

An analysis of the current water leak status of understand structure (underground parking lots, staircases, plumbing systems, water reservoirs, etc.) of multi-family housing in South Korea shows that water leaks are found from cracks in all areas of the underground structure caused by the degradation environment (water pressure by underground water, humidity, temperature, earth pressure, soil behaviour and vibration, etc.), which result in various problems, including mold, malodour, debonding of finishing materials, exfoliation, breakout, water leaks in electrical boxes, efflorescence, sedimentation of calcium hydroxide, decoloration, rusting, damages and pollution among others. Therefore, this study aims to analyse the current status of water leaks in underground structure and use the results as the basic data for developing a standard guideline for water leaks and maintenance by parts of the underground structure of multi-family housing.

• 한국실내디자인학회논문집
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• 제15권3호
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• pp.163-172
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• 2006

The underground space of the Banwoldang in Daegu is the private enterprise historical development project that Daegu City & The forth construction company of the Samsung, Kolon, Daewoo, Hwasung promote, and take a role as the underground bridgehead that links east and west of the Daegu as the lunction of the 2 subway line. Accordingly, the underground space of the Banwoldang in Daegu have a import significance in that not only the alternative of the solution about the simple commercial formation or the limited ground but also compose the important axis of the city develoment. But, When I see the variety of problems, especially see the negative import in Daegu, the solution of the problems is the large underlying cause that revitalize the city. Consequently, in the study I would like to analyze the characteristics of the large underground space and the directivity of the interior design, to assistant for the develement plan of the more safe, comfort underground space.