• Nuclear industry
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• v.8 no.1 s.59
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• pp.97.2-98
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• 1988

• Explosives and Blasting
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• v.37 no.1
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• pp.34-47
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• 2019

This case study is concerned with the project of the explosive demolition for the DCRE Incheon plant located in Hakik district in Incheon city. The building was severely aging due to the high temperature and sea winds of hundreds of degrees emitted by chimney-shaped steel structures inside the building. Due to this, the concrete of the column and the beam fell off and rusted rebar were exposed, and some of the slabs were severely damaged, making it difficult for workers to access the structure. Therefore, it is not possible to apply a mechanical demolition method in which heavy equipment enters the interior of the building, and an explosive demolition method was applied to allow the building to be demolished without dismantling the internal facilities of the building. The order of blasting proceeded in the order of (1) building ${\rightarrow}$ (2) chimney 2 ${\rightarrow}$ (3) chimney 1. A total of 406 electronic detonators (Unitronic 600) was used to sequentially initiate the explosives installed at appropriate in building and chimneys.

• the MEAT Journal
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• s.1 fall
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• pp.40-42
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• 1987

육류의 해체가공으로 인한 위생상의 위해방지와 육류의 질적 향상을 도모하여 국민보건 향상과 증진에 기여하고 수출 검역물의 철저한 관리로 대회 수출 육류의 국제적 신뢰를 얻는 효과를 기대함에 있다. 여기에서는 돈육 가공에 대한 기초관리를 기술하고자 한다.

• KOREAN POULTRY JOURNAL
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• v.11 no.10 s.120
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• pp.154-157
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• 1979

일본의 계육가격 형성에 있어서는 도계후 이를 해체하여 정육을 닭고기전문점이나 슈퍼마?, 소매점까지 도계공장에서 도착시켜 주는 가격을 서술하도록 하고, 이에 비추어 국내에서의 계육가격에 따른 문제점들을 생각해 보기로 한다. 본인의 이 의도는 너나할 것없이 도계공장을 설립하여 위생적인 닭고기를 공급하면, 유통구조를 개선하여 앞으로 80년대에는 안정된 양계를 위해 그 필요성과 중요성을 느껴왔지만 실질적으로는 어려운 문제가 있음으로 인해 현재 설립된 도계공장도 영위하지 못하고 있는 실정에 있는 형편이다. 또 우리가 듣기에는 서울시내에 하루 필요한 닭을 도계할 수 있는 공장이 하루 2만수를 처리할 수 있는 공장이 5개는 있어야 한다고 한다. 이러한 실정에 비추어 반대로 도계장의 가동이 안되는 이유중의 하나가 본인이 생각 하는 계육 및 돈육 가격에 있다고 본다. 이에 따라 본인은 현재 일본에서 계육 가격의 형성되는 과정과 국내의 현실을 비교해 보고자 하며, 나아가서는 당국을 위시하여 양계업자의 앞으로의 자세에 대해 서술하고자 한다.

• Explosives and Blasting
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• v.25 no.2
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• pp.47-60
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• 2007

The blast demolition technology has been used to demolish various industrial facilities and tall buildings since 1950s in the advanced countries such as USA and U.K. It is now considered as one of safe demolition methods in the above countries. In Korea, several companies have tried to introduce blast demolition technology in the early days of the 1990s. However, this technology is still at the beginning stage and not fully adopted due to situation of avoiding technology transfer by overseas technical tie-up companies, lack of objects to be demolished and low level recognition on blast demolition. This technology shall be considered as a cutting edge technology to be applicable to demolition of skyscrapers, various industrial structures and factory buildings in the near future. Blast demolition of a pier structure was carried out under the site condition where there were already the constructed 2 pier structures of up and down line which had safety problems in an expressway construction project. The pier structures need to be demolished and reconstructed for a short period of time in consideration of the construction work process to be followed.

• Electric Engineers Magazine
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• s.356
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• pp.46-47
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• 2012

2012년 2월 10일(금) 15:20경, A건설의 인천광역시 중구 소재 공장 증축 및 리모델링 공사현장에서 협력업체 소속 근로자가 인근 전주(높이 12m)의 인입선 지지용 애자에 연결된 점퍼선을 해체하던 중, COS 1차측(특고압 22.9kV)에 접촉되어 감전 사망한 재해임.

• Journal of Korean Association for Spatial Structures
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• v.8 no.4
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• pp.65-71
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• 2008

The object of this paper is to evaluate on constructability of modular steel frame with the hollow structural steel section to LEB C-shape. A modular building is built with factory-manufacture and site-construction. The advantage of a Modular building presents that enhanced building quality, shortened construction period and easy at an expansion and enlargement for buildings but also has demerits such as size restriction of the modular units according to the Road Traffic Law and Inflexibility of the unit composition. So in this study we use light-weighted structure members with bolted joint for easy Knock-down and traffic, also we evaluated the constructability of this bolted joints type modular buildings.

• 전기의세계
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• v.28 no.12
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• pp.3-11
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• 1979

본문에서는 우리나라와 같이 국토가 협소한 외국에 있어 경제성의 앙양과 용지문제를 해소키 위하여 탐택하고 있는 다회선철탑의 건설실태를 소개하고저 한다. 그리고 도로망의 확장 또는 공장, 주택등의 족출은 개설송전소의 지토고의 부족, 시설물과의 안정거리부족 또는 교통방해등의 문제를 가져온다. 이러한 경우 종전에는 철탑을 올려서 문제점을 해소키 위하여 기존철탑을 완전히 해체하여 시공하는 방법을 택하여 왔으나 근래의 외국서적을 참조하면 기존탑을 완전히 해체하지 않고 기존탑에다 소요높이의 결구를 삽입함으로써 그 목적을 달성하고 있으며 어떤경우는 송전을 지속하는 상태에서 탑고을 올리고 있다. 본문에서는 이 공법도 겸하여 소개하고져 한다. 그리고 초고압철탑은 탑고가 높고 그 중량도 무거워져 종능전과 같은 본주의 gin pole을 이용한 철탑조립방식은 율이 올라가지 않고 또 위험성이 내포하고 있다. 따라서 본문은 또 현대적인 초고압철탑의 조립공법도 겸하여 언급하고져한다.

• Proceeding of KASS Symposium
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• 2008.05a
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• pp.43-48
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• 2008

The object of this paper is to evaluate on constructability of modular steel frame with the hollow structural steel section to LEB C-shape. A modular building is built with factory-manufacture and site-construction. The advantage of a Modular building presents that enhanced building quality, shortened construction period and easy at an expansion and enlargement for buildings but also has demerits such as size restriction of the modular units according to the Road Traffic Law and Inflexibility of the unit composition. So in this study we use light-weighted structure members with bolted joint for easy Knock-down and traffic, also we evaluated the constructability of this bolted joints type modular buildings.

• Tunnel and Underground Space
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• v.10 no.4
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• pp.516-525
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• 2000

Recently, the demand for pollution-free demolition work of old reinforced concrete and steel structure has rapidly increased as the redevelopment of urban area has been accelerated. This study deals with linear shape charges for explosive jet cutting on steel structure. We have tested material and shape of steel structure, characteristics of thickness and strength, shape of linear shape charges, type of shape charges, cumulative charges, type of liner, stand-off distance, detonation method. effect of sound and vibration by air blast in explosive jet cutting method. So, We developed linear shape charges in order to take advantage of optimum explosive jet cutting condition. Shape charges were made of PETN explosives. We obtained the experimental formula to decide the amount of explosive needed for thickness of steel structure plate. There are prospects for application of the explosion curving technology under the open space conditions for dismantling the steel structure and steel bridge, scrapped old boats, which are going out of service.