• 도시과학
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• 제10권1호
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• pp.29-37
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• 2021

The number of old buildings older than 30 years in Korea continues to increase from 29.9% in 2005 to 38.8% in 2020. Considering the growing urban regeneration projects, urban maintenance projects, the suppression of urban expansion, and the lack of idle land in the city, the dismantling of old buildings is expected to increase further in the future. As major accidents at building dismantling sites continue to occur, related agencies are also strengthening safety management of building dismantling works. While physical safety management such as collapse and fall is strengthened, there is a relative lack of interest in the health of workers at dismantling sites due to environmental hazards. Since relevant laws stipulate that construction waste should be separated and discharged, old buildings need to be considered for environmental hazards such as fine dust, floating bacteria, and floating molds when dismantling. In this study, we intend to find important safety management elements in the management of building dismantling sites, measure environmental factors harmful to dismantling workers, and present basic data for the management of dismantling sites in the future. "Safety management" was the highest priority, followed by "dust," "vibration," "noise," "bacteria," and "smell." The perception of the importance of "physical damage prevention" with workers working on dismantling and managers managing the site came out similar, but the perception of "work efficiency" and "health disorder prevention" through environmental hazard management showed different priorities. In the process of dismantling, floating bacteria and floating mold were collected, cultured, and measured the concentration in the indoor air. The measurement was measured by dividing it into pre-dismantling and during dismantling.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2004년도 Proceedings of the 4th Korea-China Joint Workshop on Nuclear Waste Management
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• pp.114-129
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• 2004

The 3D simulations for the Rotary Specimen Rack (RSR), the shielding concret, and the reactor core dismantling processes in the Korea Research Reactor-1&2(KRR-1&2) were carried out in the present work. The four main dismantling items, which are the RSR, reactor core, beam tube, and the thermal column and the shield concrete, were selected among the many components in the KRR-2 by consideration of the activation, worker training, difficulty of the work and so on. On the basis of these, we built 3D CAD models, selected the proper dismantling technologies, and reviewed their dismantling processes. In this study, the 3D simulation results of the shielding concrete, and the reactor core dismantling processes are also presented and discussed.

• 방사성폐기물학회지
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• 제15권4호
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• pp.355-367
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• 2017

2017년 6월에 영구정지 된 고리 1호기의 해체는 한국의 상업 원전에 대한 첫 해체 사례가 될 것이다. 해체 과정 중에 발생하는 폐기물에 대한 처분은 전체 해체 비용의 많은 부분을 차지한다. 따라서 방사화 및 오염된 콘크리트 구조물은 적절한 해체전략을 수립하여 경제적이고 안전하게 해체되어야 한다. 본 논문에서는 생물학적 차폐체에 대한 최적화된 해체 및 처분 시나리오를 연구하였다. 해체사례, 폐기물 처분 규정 및 처리 기술을 분석하였다. 그리고 생물학적 차폐체 제거 과정의 폐기물 발생량을 최소화하기 위해서, 최적 해체 시나리오를 제시하였고 폐기물 처분 방안을 도출하였다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1190-1194
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• 2007

Since the dismantling processes of building are very dangerous, there have been many studies to develop a remote operating devices using joystick. In this paper, in order to improve the operability of the dismantling actuator that is usually an excavator, a novel concept of tele-operated haptic device is proposed. Operators who use this haptic device with additional environmental sensing devices can work safely away from the dangerous sites. First, based on the concept design of the haptic device, the workspace mapping from the haptic device to the excavator is explored. Second, the kinematics which deals with the conversion from the 3 dimensional position information of the haptic device to the joint variable information of the backhoe is included. Lastly, 3D graphical simulation of both haptic device and the backhoe will be shown. This new design of the haptic device can be easily manufactured and gives the workers very convenient and transparent remote control capability.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 춘계학술대회
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• pp.1199-1204
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• 2003

The 3D simulations of the shielding concrete and the Rotary Specimen Rack(RSR) in the Korea Research Reactor-1&2(KRR-1&2) were carried out in present work. Four main dismantling processes, which are the removal of the RSR, reactor core region, beam tube, and thermal column and activated concrete, were selected for the graphic simulation by the consideration of the activation, worker training, work difficulty and so on. On the basis of these, we constructed their 3D CAD models and then drawn and reviewed their dismantling processes. In this study, the 3D simulation results of the shielding concrete and the RSR among main components are also presented and discussed.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2003년도 가을 학술논문집
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• pp.707-719
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• 2003

연구로 해체 작업은 높은 방사선 환경 속에서 작업이 진행되기 때문에 작업자의 안전 및 작업에 대한 높은 신뢰성이 요구된다. 따라서 해체 대상물에 대한 선정, 적용 가능한 해체기술 선정 및 선정된 대상물에 대한 시나리오 분석은 필수적이다. 본 논문에서는 연구로 2호기의 구성부품 중 선정기준에 따라 주요해체 대상물을 선정하였으며 선정된 대상물들에 대해 3차원 모델링을 수행하였다. 또한 각 해체 대상물에 대해 적용 가능한 해체기술을 선정하였고 각 대상물에 대한 해체 시나리오를 구성하였다. 마지막으로 콘크리트 차폐체, 회전시료조사대, 노심에 대해 해체 시뮬레이션을 수행하였다.

• 한국건축시공학회지
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• 제24권2호
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• pp.261-271
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• 2024

국내외 건설현장에서 사용빈도가 급격히 증가하고 있는 슬래브용 알루미늄 폼은 탈형시 바닥으로 그대로 떨어뜨리는 경우가 많아 소음으로 인한 주변 민원이 발생하고, 높은 위치에서 떨어지면서 형틀이 변형되거나 바닥에서 튀어 오로면서 주변 인부들에게 상해를 입히기도 하여 중대재해처벌법이 강화되는 현실에서 개선이 절실한 상황이다. 이에 본 연구에서는 공동주택의 1세대 슬래브 거푸집 전체가 동시에 작업자가 펼친 손이 닿는 위치까지 안전하게 낙하되면 자유롭게 분해하여 다음 층으로 인양할 수 있게 함으로써 안전성, 품질, 경제성, 공정이 개선된 필러서포터 존치형 공법으로써 슬래브의 처짐문제 해결 등의 장점을 확인되고 건설신기술을 획득하였으므로 적극적인 시장개척을 통한 적용 활성화가 가능할 것으로 판단된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.194-195
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• 2021

Due to urban regeneration projects or changes in the living environment, there is an increasing need to demolish old buildings that have lost their functions. Demolition of above ground and underground structures is an important construction project that greatly affects the construction period and safety of the entire process. However, it is difficult for the safety officer to manage the demolition work due to the lack of specific and diverse data applicable to the site of the demolition plan. Therefore, in this study, items that need to be improved in structural safety when the above-ground and underground structures are demolished are reviewed and organized. For the main contents of structural safety management in demolition work, 1) structural review reflecting the order of demolition work, 2) installation and dismantling of steel pipe scaffolding and dust nets, 3) installation and dismantling of system scaffolding, 4) installation and dismantling of fall prevention nets, 5) jack support Installation and dismantling, 6) movement of equipment, movement and planning between floors, 7) equipment for demolition of structures, height of remnants, 8) site cleanup, and 9) equipment operators were categorized and arranged.

• 대한토목학회논문집
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• 제44권4호
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• pp.555-565
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• 2024

정부에서는 건설폐기물의 재활용을 높이기 위해서 분별해체를 강제하기 위해 법률규정을 제정하였다. 따라서 본 연구는 대규모 택지 조성을 위한 분별해체 공사의 공사비 산정을 위한 필수적인 요소로서 원단위를 제안하는 것을 목표로 한다. 이를 위해 4채의 단독주택을 선정하고 현장 조사와 실험을 하였다. 주택을 실측하여 도면을 작성하고 내장재를 정밀 조사하여 분별해체 작업의 공사비 산정을 위한 원단위를 제안하였다. 분별해체 작업은 천장, 벽, 바닥 등으로 부위별로 구분하여 진행하였고 부위별, 재료별로 작업 시간을 측정하였다. 특히 벽의 개구부를 구성하는 창문 등에 대한 보정 작업을 시행하여 기존 연구와의 차별성을 확보하고 정확성을 향상했다. 이러한 연구 결과는 실무에 즉시 적용할 수 있는 구체적인 지침으로 활용될 것으로 기대되며, 건설 분야의 지속 가능한 발전을 촉진할 것으로 기대된다.

• 한국실내디자인학회논문집
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• 제15권1호
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• pp.3-11
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• 2006

After the 60's, The discourse of the Art of Reception, semiotics, and epistemology have been made steady progress. Especially, the Art of Reception which emphasizes the role of reader in the process of understanding the text, had made the significant role of the Border Dismantling in the Architecture. Its concept can be difined as the free interpretation of each individuals on the art works, that abhors the one-directional systems between reader and writer. This study analyzes the meaning of 'Borderness dismantling' as a molting the center of the world of God, center of Ideology, center of ration in the pluralized and center-cracked world. and also means vague border, no limitation, and overcoming, which make people participate together to overcome the estrangement. The process of study inquire into the phenomenon of fragmentization, indeterminacy, continuitiness, hybridization, mutual penetration, Rhizome and complex allegorization(the process of humanization) Looking back of architectural history, in the origin of those phenomenon, there is the etching works of Piranesi. Many contemporary architects had been affected by his works, and re-interpret and make come true of his visions. This study analyze the meanings of his working process and consequences on contemporary architecture.