• Title/Summary/Keyword: temporary facility

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Evaluation of Separation Distance from the Temporary Storage Facility for Decontamination Waste to Ensure Public Radiological Safety after Fukushima Nuclear Power Plant Accident (후쿠시마 원전 사고 이후 일반인의 방사선학적 안전성 확보를 위한 제염폐기물 임시저장시설 이격거리 평가)

  • Kim, Min Jun;Go, A Ra;Kim, Kwang Pyo
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.14 no.3
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    • pp.201-209
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    • 2016
  • The object of this study was to evaluate the separation distance from a temporary storage facility satisfying the dose criteria. The calculation of ambient dose rates took into account cover soil thickness, facility size, and facility type by using MCNPX code. Shielding effects of cover soil were 68.9%, 96.9% and 99.7% at 10 cm, 30 cm and 50 cm respectively. The on-ground type of storage facility had the highest ambient dose rate, followed by the semi-ground type and the underground type. The ambient dose rate did not vary with facility size (except $5{\times}5{\times}2m\;size$) due to the self-shielding of decontamination waste in temporary storage. The separation distances without cover soil for a $50{\times}50{\times}2m\;size$ facility were evaluated as 14 m (minimum radioactivity concentration), 33 m (most probably radioactivity concentration), and 57 m (maximum radioactivity concentration) for on-ground storage type, 9 m, 24 m, and 45 m for semi-underground storage type, and 6 m, 16 m, and 31 m for underground storage type.

Effects of Occupational Risk Factors on Mental Health of Hospital Facility Temporary and Contract Workers (병원 시설 파견·용역 근로자들의 업무상 위험요인이 정신건강에 미치는 효과)

  • Jang, Ki-Won;Lee, Jung Min
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.31 no.4
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    • pp.451-460
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    • 2021
  • Objectives: The purpose of this study is to examine occupational risk factors that affect the mental health (depression, anxiety, anger, insomnia, self-esteem, trauma) of hospital facility workers. Methods: A survey was conducted from November 17, 2020 to December 1, 2020 for 700 non-medical workers (Temporary and contract workers: cleaning, security, information, office workers, etc.) working at a general hospital in Seoul. Results: As a result of the study, the risk of musculoskeletal disorders was found to have a significant effect on depression, anxiety, insomnia, and trauma. Noise had a significant effect on depression and anger, dust hazard had an effect on depression and self-esteem, and high temperature had a significant effect on anxiety and insomnia. Conclusions: Based on these results, it is necessary to examine the influence of occupational risk factors to improve the mental health of non-medical hospital facility workers.

The flow of Temporary Facility Planning Information in High-rise Building Construction (고층건축공사에서의 가설계획 정보흐름)

  • Yoon You-Sang;Lee Hyung-Soo;Suh Sang-Wook
    • Korean Journal of Construction Engineering and Management
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    • v.3 no.1 s.9
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    • pp.91-96
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    • 2002
  • The purpose of this study is to present a systemized flow of temporary facility(TF) planning information. The current TF planning tends to be established by subjective decision making of field workers. Therefore TF planning needs more systemized information flow to provide a reliable schedule. The study was implemented through interview with experts for reliable TF planning. The main contents of the study are as follows; 1) TF planning process model(IDEF0) are established. 2) Various information flow diagrams proposed to support TF planning decision-making. The study recommends that, as a future research, the computer system be developed for application of the information flow.

A Safety Management Strategy for Temporary LP-gas Facilities (이동형 LP가스 사용시설의 안전관리 방안)

  • Lee, Duk-Gwon;Lee, Seung-Kuk;Lee, Yeon-Jae;Kim, Hie-Sik
    • Journal of the Korean Institute of Gas
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    • v.20 no.6
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    • pp.73-79
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    • 2016
  • A temporary LP-gas facility means outdoor LP-gas facilities in public venues such as boothes or food stalls. As temporary LP-gas facility is not an object of mandatory inspection, it is neccesary to develop an effective strategy of safety management. In this study, the direction of safety management strategy is analyzed through a survey and analysis of risk factor about gas facilities in a booth and stall. Some improved directions are suggested such as the use of pipeline and common gas storage. It is expected that the results of this study could help to improve LP-gas efficiency management.

A Study on The Design Plan of Outdoor Temporary Housing Facility That Can Be Supplied at The Time of Disaster (재해 시 보급 가능한 실외 임시주거시설 디자인 계획안에 관한 연구)

  • Kim, Minseok;Ju, Jaeseong;Yeom, Taejun;Park, Mijin
    • Journal of the Society of Disaster Information
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    • v.13 no.2
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    • pp.173-190
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    • 2017
  • As environmental pollution becomes serious, natural disasters are frequent and damage is increasing. Also, due to population overcrowding, social disasters are frequent, and it is difficult to predict due to the variety of area, extent, and damage. As the disasters have diversified and the scale of the damage has increased, the scale of evacuees and the period of evacuation have diversified. Should be provide facilities that will be protected from second damages to victims who have lost their homes quickly. It supports a prefabricated house, but it is difficult to supply it. In this study, the ultimate goal is to plan an outdoor temporary housing facility that can supply quickly when the capacity of the evacuation facility is insufficient or the evacuation facility is insufficient.

A study on the application and construction of a rainwater storage tank in apartment complex (공동주택단지에서의 빗물저수조 설치 및 활용방안 연구)

  • Lee, Won-Yeul;Jeong, Sang-Min;Shin, Duck;Lee, Chuel-Hun;Han, Moo-Young
    • Journal of the Korea Institute of Building Construction
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    • v.5 no.4 s.18
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    • pp.165-171
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    • 2005
  • Nowadays, a source of all water, which has been spent by a lot of people, is the rainwater The rainwater is directly relating human being' life. According to how to use rainwater. human being' life is abundant or poor. Due to the lack of underground filtration quantity, the water circulation of the city is discontinued and the underground ecosystem is destroyed. This study suggest that the unused underground space of building and temporary structure can be used into rainwater storage tank in the facility to use rainwater. Moreover, in this study, while the building is constructed, It is showed that the water used in construction can be replaced in the rainwater.

Optimization Algorithms for Site Facility Layout Problems Using Self-Organizing Maps

  • Park, U-Yeol;An, Sung-Hoon
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.6
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    • pp.664-673
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    • 2012
  • Determining the layout of temporary facilities that support construction activities at a site is an important planning activity, as layout can significantly affect cost, quality of work, safety, and other aspects of the project. The construction site layout problem involves difficult combinatorial optimization. Recently, various artificial intelligence(AI)-based algorithms have been applied to solving many complex optimization problems, including neural networks(NN), genetic algorithms(GA), and swarm intelligence(SI) which relates to the collective behavior of social systems such as honey bees and birds. This study proposes a site facility layout optimization algorithm based on self-organizing maps(SOM). Computational experiments are carried out to justify the efficiency of the proposed method and compare it with particle swarm optimization(PSO). The results show that the proposed algorithm can be efficiently employed to solve the problem of site layout.

Preliminary study for Vertical Dynamic Site Layout Planning of High-Rise Building Construction (고층공사 가설시설물의 동적수직배치 최적화를 위한 기초연구)

  • Pyo, Kiyoun;Lee, Dongmin;Lim, Hyunsu;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.39-40
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    • 2018
  • The goal of site layout planning(SLP) is to maximize the productivity and efficiency of the construction by reducing travel distance and material handling cost and manpower. However, SLPs are static layout schemes, which cannot be reorganized during the construction process to correspond with errors, phase transition, changing working environments on the site. To solve this problem, researches on dynamic site layout planning(DSLP) are emerging. This preliminary study clarifies characteristics of temporary facility's variables to develop the vertical DSLP algorithm of high-rise building construction.

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An Experimental Study on Compressive Loading Capacity of PCT System (PCT System의 압축내하력에 관한 실험적 연구)

  • Han, Man-Yup;Kim, Jae-Hong;Kang, Sang-Hun;Jin, Kyung-Seok;Jeon, Yong-Sik;Cho, Byung-Ku
    • Proceedings of the Korea Concrete Institute Conference
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    • 2008.11a
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    • pp.41-44
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    • 2008
  • The PCT that supports the walls of long span temporary shoring facility is previously manufactured in the way of prestressing, and it which is composed of concrete is improved precast structure to satisfy enough stiffness. The components of PCT are manufactured as a fixed form, and they are close to the inner side of the wall of temporary shoring facility by fixed means in PCT. PCT system as support structure is that the ends of concrete filled segment members are united by the means of connection and also they have connection hole. In this study, PCT has enough bearing power for the long span temporary shoring facility, and also make the term of work reduce due to that the time of curing reduce through the method of precast.

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