• Safety and Health at Work
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• 제2권4호
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• pp.336-347
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• 2011

Objectives: In Korea, an average of 258 workers claim compensation for their noise-induced hearing loss (NIHL) on an annual basis. Indeed, hearing disorder ranks first in the number of diagnoses made by occupational medical check-ups. Against this backdrop, this study analyzed the impact of 19 types of noise-generating machines and equipment on the sound pressure levels in workplaces and NIHL occurrence based on a 2009 national survey on work environments. Methods: Through this analysis, a series of statistical models were built to determine posterior probabilities for each worksite with an aim to present risk ratings for noise levels at work. Results: It was found that air compressors and grinding machines came in first and second, respectively in the number of installed noise-generating machines and equipment. However, there was no direct relationship between workplace noise and NIHL among workers since noise-control equipment and protective gear had been in place. By building a logistic regression model and neural network, statistical models were set to identify the influence of the noise-generating machines and equipment on workplace noise levels and NIHL occurrence. Conclusion: This study offered NIHL prevention measures which are fit for the worksites in each risk grade.

• 한국안전학회지
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• 제32권5호
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• pp.20-24
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• 2017

In this study, we have performed the Cone Calorimeter test in accordance with ISO 5660-1 to check the combustion characteristics of building flooring materials. The fire risk of these materials were evaluated by construction code, KFI criteria and standards of flame retardant performance. When samples exposed to external heat flux, all samples consumed a lot of Oxygen for a long time. So heat release from sample burning continued so long. And also all samples produced so much smoke. Even though a few samples were satisfied with only peak heat release rate criteria, all 8 samples were not satisfied with criteria of peak heat release rate and total heat released together. The results of 5 min total heat released were $15.9MJ/m^2{\sim}5.9MJ/m^2$. It menas the results are more than 2~6 times higher than the criteria. The results of 10 min total heat released were $30.1MJ/m^2{\sim}100.8MJ/m^2$. It means the results are more than 3~12 times higher than the criteria. 6 of 8 samples were not satisfied with Dm.corr.(corrected maximum smoke density) criteria. The building flooring materials which we used for this test ignited very fast and the burning continued so long. It means these samples are susceptible to fire.

• 보존과학회지
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• 제23권
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• pp.119-124
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• 2008

우리나라의 전통 사찰은 대부분 목조로 되어 있고 국가 중요 전통사찰의 건축 구조는 대부분이 목재로서 연소성이 높기 때문에 일단 착화되면 빠른 속도로 화재가 전파되고 산중에 있는 지리적인 특성으로 인해 효과적으로 화재를 진압하는데 어려운 문제점을 가지고 있다. 본 논문에서는 전통사찰 문화재의 화재안전관리 개선방안으로 법 제도적인 측면, 건축방화적인측면, 재난 방재 기본 시스템구축 및 유관기관 합동점검, 훈련 등 예방활동 강화를 제시하였다.

• 한국건축시공학회지
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• 제21권3호
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• pp.249-256
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• 2021

건축공사 재해 중 거푸집공사 비중이 매우 크다. 거푸집 공사 재해 예방을 위해 관련 연구가 장기간 걸쳐 진행되고 있지만 지속적인 노력에도 불구하고 재해가 줄지 않고 있다. 따라서 본 연구에서는 AHP 기법을 활용하여 거푸집 붕괴사고 요인별 중요도 분석을 하고 관리할 우선 요소를 정하고자 한다. 분석 결과 시공요인, 관리요인, 설계요인 순으로 가중치가 높게 나타났다. 따라서 시공요인을 우선적으로 관리하면 거푸집 붕괴 재해를 예방할 수 있을 것으로 사료된다.

• 대한안전경영과학회지
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• 제14권2호
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• pp.1-9
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• 2012

As contemporary building construction type is getting higher and deeper, construction equipment usage is getting more, and related fatal accidents are on an increasing trend. Because of this, a method was drawn which could grasp the present state of construction equipment management and manage safety of the equipment more easily for accident prevention by choosing 2 kinds of Construction equipment which cause safety accident frequently among the equipment mainly used in construction site. This study suggested a method about construction equipment safety management using "smart phone" base which could be used in safety management for construction equipment by whomever in construction site. After attachment of QR code included safety checklist, It became possible that site managers could check more efficiently by scanning with their smart phone when they inspect equipment. Moreover, by the construction interested who didn't know what and how they have to inspect could point out unsafe condition in the early stage of equipment entering or take unsafe one out of the site by using new smart phone safety checking system is installed, it became possible that critical accident caused by construction equipment was prevented in advance.

• 한국재난정보학회 논문집
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• 제14권3호
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• pp.280-287
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• 2018

연구목적: 본 연구는 아파트에서 실제 운영한 점검 실태를 비교 검토하고 기존에 설치된 안전물에서 한층 개선된 풀 푸르프 안전관리를 제시하는 것을 목적으로 한다. 연구방법: 연구를 위해 공동주택인 아파트에 대한 선행 연구를 토대로 주택관련법령에 근거와 주택법에 근거한 보고서에 나타난 실태와 문제점을 제시하였다. 연구결과: 건축물의 안전관리계획 및 안전점검을 실시하고 수립해서 보안해야 하고 건축물 점검시 내외관에 대한 시설물의 추적관리가 되어야 한다. 특히, 소방, 승강기, cctv등에 자체관리시스템이 24시간 필요하다. 결론: 본 연구를 통해 아파트 등의 건물안전관리에 입주자 대표 등 관리상의 문제를 확인하고 그에 대한 대책을 수립해야 한다.

• 한국안전학회지
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• 제33권5호
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• pp.120-126
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• 2018

The traffic accident types are largely classified into vehicle to vehicle accident, vehicle-to-person accident and single-vehicle. Especially, the single-vehicle accident types are severe when the vehicle crashed into road facilities such as bridge, piers, utility poles. The severity of single-vehicle accidents are ten times higher than that of all other accidents types. It is needed to consider to reduce accident severity. This study was conducted to develop crash worthy safety design facility to ensure the vehicle occupant safety. The simulation and the crash tests were conducted for assessment of the safety performance to check the criteria of CC2(Crash Cushion 2) level. THIV(Theoretical Head Impact Velocity) and PHD(Post-impact Head Deceleration) were used to assess occupant impact severity for crashes. The non-redirection collision test conditions for 900 kg and 1,300 kg-head on crash tests, 900 kg-1/4 offset crash tests, 1,300 kg-head on crash test with $15^{\circ}$angle were conducted. The simulation and experiment test result showed that THIV values were below 44 km/h criterion, PHD values were below the 20G. The development non-redirective crash cushion is expected to be used for the fixed object such as bridge piers for assuring occupant safety.

• 한국화재소방학회논문지
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• 제25권6호
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• pp.156-167
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• 2011

최근 건물의 대형화, 고층화, 복잡화가 이루어지고 있으며, 건축물 화재 발생건수와 이로 인한 인명 및 재산 피해의 증가함에 따라 화재피난 시뮬레이션을 통한 건축물의 안전성 점검의 필요성이 대두되고 있다. 따라서 본 연구에서는 외산 프로그램에 의존하고 있는 화재피난 시뮬레이션 분야에 한국인의 특성을 고려한 시뮬레이션 시스템을 구현하고자 하였다. 그 결과 3차원 공간 정보 기반으로 공간의 토폴로지를 생성하고, 피난 경로를 탐색하는 화재피난 시뮬레이션을 구축하였다.

• Journal of Mechanical Science and Technology
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• 제18권12호
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• pp.2225-2235
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• 2004

An observatory termed 'Steel Swing' has been developed, where a 15000 kg pendulum is hanged from a stiff steel frame. A building element can be tested after inserted between the pendulum and the frame. Free vibration, forced vibration tests and earthquake monitoring were performed on an exposed-type steel column base. The response records monitored during natural earthquakes were used to identify the vibration property of the specimen. Identified system gain was approximated by a theoretical gain of linear SDOF system, and the response calculated based on such a linear system agrees with the monitored response fairly well. This research technique can be applied to check the behaviors of new materials and new details of connections and the safety of non-structural elements as well.

• 문화기술의 융합
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• 제9권4호
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• pp.577-585
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• 2023

이 연구는 LPG 충전소의 가스누출로 발생이 예상되는 화재 및 폭발에 따른 피해예측에 ALOHA 프로그램을 적용 영향범위와 거리를 도식화함으로 피해방지 방안을 제시하였다. LPG 충전소에서 프로판 가스가 누출될 경우 LPG 충전소 주변지역 주민들에게 호흡곤란 등의 인명피해 및 건물파괴 등 재산피해를 입히는 것으로 나타났다. 이의 감소방안으로 첫째 LPG 충전소의 위험물안전관리자는 수시로 계측기와 안전밸브가 제대로 작동하는지 점검하여 누출을 사전에 방지할 필요가 있다. 둘째 LPG 충전소에서 저장탱크에 충전하는 작업은 위험물안전관리법 규정에 따라 "위험물안전관리자 교육"을 받고, 소방관서에서 "위험물안전관리자"로 선임된 사람의 책임하에 해야 한다는 것이다. 셋째 LPG차량의 과충전 방지장치 등 각종 안전장치의 기능을 평상시 정기적으로 점검할 필요가 있다. 마지막으로 LPG 충전소에 가스가 누출될 때 정전기에 의해 화재가 발생할 수 있으므로 정전기를 방지할 수 있는 작업복·작업화를 착용하는 등의 조치로 정전기발생을 억제하는 것이 바람직하다.