• Journal of the Society of Disaster Information
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• v.18 no.1
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• pp.129-145
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• 2022

Purpose: This study aims at preparing an external evacuation system by setting up situation that may occur outside buildings in case of large-scale fire at buildings such as multiuse facilities and presenting appropriate response procedures and action instructions for evacuees and facility managers. Method: Major matters are summarized based on various situations which may occur outside in case of fire and the contents of fire manual. Necessary factors including risk alert standards in the event of fire and the role of building occupants are classified and then important issues are summarized. In addition, the definition of fire-related outside shelters and external evacuation routes are showed, and then the applicability to the shelters and the routes are reviewed for old apartments in Jung-gu among multi-dense facilities. Result: Four stages (attention, caution, alert, serious) for standards of fire risk warning are established with the results of the investigation and analysis, and guidelines for behavior for evacuees, facility owners, residents, managers are summarized and presented. In addition, the concept and role of external shelters are divided into primary to the third shelters, and matters related to the definition of each shelter and the establishment of evacuation routes are presented, and then considered them carefully. Conclusion: This study has highlighted the importance of suggesting a systematic plan to secure the safety for evacuees outside space of buildings with disorder and difficulty to control in the event of fire. Therefore, we are confident that it will be useful in making an integrated manual for inside and outside buildings.

• Journal of Internet of Things and Convergence
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• v.6 no.1
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• pp.23-30
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• 2020

This paper proposes energy management directions to discover the factors of energy loss in homes and buildings and to find ways to improve them. We designed a diagnostic content app for everyday life so that not only housing experts but also the general public can use the detachable thermal imaging camera, which is a strong point of popularity and convenience. The diagnostic results using the app were analyzed using Energy Finder, an energy efficiency diagnostic solution. The survey was conducted on the senior center which is in the blind spots and facilities of the energy welfare area. The target of diagnosis was energy efficiency diagnosis by selecting 30 senior centers for over 15 years from 600 locations located in Naju City, Jeollanam-do. The overall diagnosis was good, but it is considered that the place classified as 7th grade needs to be supplemented to improve energy efficiency.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.23 no.1
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• pp.1-10
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• 2011

Recently harbor remodeling projects are seriously considered to enhance the loading and unloading capability of old container terminals and to make decrepit ports as eco-friendly harbor and waterfront spaces in many countries. In such a case, quantitative and qualitative evaluations on concrete harbor facilities are mandatory to determine the current structural integrity condition of aged materials. Once the remodeling project is determined to be carried out, the reusability of individual structural members and facilities including caissons, cell-blocks, and tetra-pods need to be decided based on the simple and economic visual inspection and/or nondestructive testing. In this study, the systematic quantitative evaluation procedure for determining the structural integrity condition and the reusability is studied based the nondestructive testing and evaluation methods. Conventional methods including Schmidt hammer test and ultrasonicpulse velocity methods and elastic wave based methods including impact echo test and surface wave test are applied to the old harbor facilities in five different sites. The compressive tests are also carried out to determine the elastic modulus and compressive strength of concrete materials.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.11 no.2
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• pp.43-51
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• 1993

It is very important entity that a map of urban facility is in civic life and development of city. But now, there are many needs of computerization which was used for management of urban facility map because inefficiency was produced due to management of urban facility map by hand. This paper, it was showed that a processing of establishing database in computer by applying GIS. The used sample area in studying in Ansan city in Kyunggi province and a sewer pipe which was in there adapted to establish database in computer. A map of administration district, which is 1:38,000, a map of complex urban planning of city, which is 1:3,000, and the facility map were used for the input of spatial data and the address, the year when sewer pipe was burried, and the quality of pipe, the pipe diameter, and the length of pipe were used as attribute data. Relational structure was used for establishment of database then, searching, analyzing, and processing were possible. Additionary, the result of this studying can be used for replacement of a old sewer pipe, a material quantity which is related with repairement of sewer pipe, and calculation of time, cost by application program framed by Fortran.

• Journal of the Korean GEO-environmental Society
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• v.17 no.9
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• pp.47-52
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• 2016

Unusual extreme weather events, which exceed a safe design capacity of the infrastructure, increase the frequency of natural disasters and has also been enlarged damage scale. Aging buildings and rapid urban progress act as weighting factors for the new composite disasters. Technological advances support detecting pre-disaster risk, real-time data analysis, and rapid response to the disaster site, but it is insufficient that emergency relief for buried alive must take advantage of the proven technologies through field tests. This study aims to evaluate directional drilling performance through underground soils and the reinforced concrete structure for primary lifeline installation in order to quickly provide relief supplies for buried alive when urban structures collapse.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.708-708
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• 2012

국내에는 농업용수 공급을 목적으로 축조된 저수지가 2008년 통계연보기준에 따르면 17,649개소가 있으며, 이 중 3,326개소는 한국농어촌공사에서 관리하고, 나머지 14,323개소는 지자체에서 관리하고 있는 것으로 파악되고 있다. 유효저수량으로 보면 공사관리가 24억4천7백만$m^3$, 지자체관리가 3억2천3백만$m^3$으로 각각 88.3%와 11.7%를 관리하고 있는 셈이다. 경상북도와 같은 산이 많은 지방은 지자체관리가 전체 대비 34.5%인 4,943개소이지만 유효저수량으로 보면 전체 27억7천만$m^3$ 중 8천4백만$m^3$ 3%수준, 지자체관리 대비 26.1%수준의 저수지가 있는 셈이다. 저수지의 축조년도를 지자체관리 저수지의 58%인 8,352개소의 저수지가 1948년 이전에 축조된 일명 '밀가루 댐'으로 불리는 저수지가 대부분이다. 축조된 지 60년 이상 된 시설물은 공용내구연한이 경과한 시설로서 노후손상부위를 복구해야 함은 물론 이상기후에 따른 강우사상의 변화로 설계빈도를 달리하여 재해대비 보강이 필요한 시설이다. 2002년 8월 제15호 태풍 루사나 2003년 9월 제14호 태풍 매미 등에 의해 저수지의 피해가 발생하는 빈도가 점차 늘어가고 있다. 따라서 지자체관리 저수지의 안전관리방안의 마련을 통한 재해대비보강 및 기능강화가 시급한 실정이다. 따라서 본 연구에서는 시 군 관리 농업용 저수지에 대하여 저수지 준공년도별 설계빈도에 대한 등급 구분 및 홍수배제 능력 등 수리 수문학적 안정성 기준을 설정하여 검토한 결과 1960년대 이전에 축조된 저수지의 경우 50%이상의 저수지에서 안정성에 문제가 생긴 것으로 파악되며, 1970년대에는 38%, 1980년대에는 34%, 1990년대에는 24%로 검토되었다. 이와 같이 안정성에 문제가 있는 저수지는 주기적인 모니터링과 보강이 필요하다고 사료된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.395-405
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• 2019

Korea is undergoing a change in its population structure, due to economic development, falling birth rates and the development of health care. As the population ages, the number of elderly people who have difficulty in daily life such as dementia and paralysis increases every day. The growth of nuclear families and the increased participation of women in society make it difficult to take care of elderly people who need long-term care at home. As the social problems resulting from this have emerged as serious problems, the government enacted and implemented the Long Term Care Insurance Act to improve the quality of life for the elderly subject to long-term care and to ease the burden of family support in order to solve such problems. Therefore, the present study explores ways to improve legal and institutional aspects, and seek mental and psychological measures for the stability of old life as well as the physical health of welfare.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.293-293
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• 2015

농촌용수는 자연계의 물순환과 융합한 형태로 반복과 순환의 특징을 갖고 있으며, 지역의 건전한 물순환 형성에 중요한 역할을 담당하고 있다. 또한 식량생산 기반으로서의 역할뿐만 아니라 환경 보전, 전통문화 및 지역사회 등과 밀접한 관련이 있어 사회적 자본으로서의 큰 역할을 하고 있다. 그러나 최근 쌀 소비의 급격한 감소로 논 경작면적이 축소되면서 밭 경작면적이 증가하고 있어 우리나라 농업형태가 논 관개 시스템에서 밭 관개 시스템의 특용작물 재배와 같은 첨단시설의 하우스 농업 형태로 변화하고 있음을 알 수 있다. 농촌용수의 활용은 감소하고 있고 관개 형태의 변화로 용수관리 시스템에 대한 중요성이 대두되고 있고, 관개시스템에서 농촌용수의 효율적인 이용을 위한 수로형태의 변화는 개수로 중심에서 관수로 중심으로 진화하고 있는 상황이다. 농촌용수를 저장, 운용 실태를 보면 노후 된 농업기반시설들로 인하여 저수량 감소가 발생하며, 확보된 용수를 재래식으로 운용함으로 인한 관리 손실발생으로 농촌용수 부족사태를 발생시키고 있으며, 농촌용수 관개를 위한 개수로에서의 용수 손실률은 약 15%에 달하며 이는 약 20억$m^3$으로 추정되고 우리나라 총 수자원의 6%에 해당되는 양이다. 본 연구에서는 관개지구의 급수관리 계획 및 사례 분석을 통해 기존의 모의에 의한 농촌용수 추정 값의 불확실성을 확인하고 실측에 의한 정량화 분석을 통해 관수로 시스템 구축의 타당성 제시 및 효과 분석을 하고자 한다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.41 no.4
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• pp.417-428
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• 2021

Since future maintenance cost estimation of infrastructure involves uncertainty, it is important to make use of a failure prediction model. However, it is difficult for local governments to develop accurate failure prediction models applicable to infrastructure due to a lack of budget and expertise. Therefore, this study estimated the life expectancy of asphalt road pavement of national highways using the Bayesian Markov Mixture Hazard model. In addition, in order to accurately estimate life expectancy, environmental variables such as traffic volume, ESAL (Equivalent Single Axle Loads), SNP (Structural Number of Pavement), meteorological conditions, and de-icing material usage were applied to retain reliability of the estimation results. As a result, life expectancy was estimated from at least 13.09 to 19.61 years by region. By using this approach, it is expected that it will be possible to estimate future maintenance cost considering local failure characteristics.

• The Journal of the Korea Contents Association
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• v.19 no.1
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• pp.574-586
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• 2019

The purpose of this study was to investigate housing situation and residential satisfaction of foreigners in Korea, and to identify influential factors for housing satisfaction. A questionnaire survey was conducted to 132 foreigners who reside in Seoul and Gyeonggi-do. Most of the respondents were Chinese and the average age was 45.7. Over 90% of the respondents lived in a rented house and detached house was the most popular type of house. Overall score of residential satisfaction was 3.43 and it was above average. However, scores for parking lot, housing deterioration, and space planning showed the lowest level of satisfaction. Factor analysis was used to summarize the variables related to residential satisfaction and 5 factors -'space planning and organization,' 'amenities & equipment', 'community facilities,' 'near environment' and 'housing expenses'- were drawn. Among those, 'space planning and organization' was the most influential factor to residential satisfaction as the result of multiple regression analysis.