• Title/Summary/Keyword: 주거복합시설

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Study on the Characteristics of Odor Emitted from Swine Facilities (양돈시설에서 발생하는 악취특성에 관한 연구)

  • Kim, Jae Hyuck;Yoo, Kyung Seun;Oh, Je Beom;Jung, Ju Young
    • Journal of Korean Society of Environmental Engineers
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    • v.34 no.7
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    • pp.439-444
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    • 2012
  • We studied the characteristics of odor emitted from 40 swine facilities across the country under various conditions like rearing densities, management style, ventilation system and swine manure handling characteristics, based on the olfactory and analytical evaluation. Odor concentrations (D/T) measured from swine facilities were respectively an average 4,055 D/T at liquid manure storage tanks on aeration, an average 913 D/T at slurry manure storage, an average 506 D/T at finishing swine facilities and an average 201 D/T at composting facilities. The higher rearing densities and slurry accumulation volume in finishing swine house, the more odor concentration (D/T) was increased. But The odor concentration (D/T) in finishing swine house did not show significant difference according to application of microbial additives. 9 odor compounds ($NH_3$, $H_2S$, MM, DMS, DMDS, PA, n-BA, n-VA, i-VA) were detected at swine facilities and the main odor compounds were volatile sulfur compounds such as $H_2S$, MM and volatile fatty acids compounds such as n-BA, n-VA, i-VA. 97.5% of swine farms surveyed in this study is located within 300 m of residential area and it is easy to bring odor complaints.

Impacts of Neighborhood's Land Use and Transit Accessibility on Residents' Commuting Trips - A Case study of Seoul (근린의 토지이용과 대중교통시설 보행접근성이 통근통행에 미치는 영향 - 서울시를 대상으로)

  • Lee, Kyunghwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.9
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    • pp.4593-4601
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    • 2013
  • The purpose of this study is to analyze neighborhood's land use and transit accessibility affecting residents' commuting trips through a case study of Seoul. The main data source used for this research is 2010 Household Travel Survey data from which 34,071 observations were selected as the final sample. Then a statistic analysis was carried out by applying random intercept logit model. Analysis shows that a high level of residential density, land use mix in neighborhood results in more use of subway for commuting. And higher access to subway station leads to more use of subway. Therefore, a high dense and mixed use development as well as a high accessibility to transit station can contribute to activating the use of public transportation for commuting. Finally, the walking range of subway station affecting transit mode for commuting is estimated at between 432 to 525m.

A Study on the Supply Status and Methods of Improvement for Social Welfare Facilities -Focused on the Senior·Child·Disabled Welfare Facilities- (사회복지시설 공급현황 및 개선방안에 관한 연구 -노인·아동·장애인 복지시설을 중심으로-)

  • Choi, Byung-so;Lee, Myeong-Hun
    • The Journal of the Korea Contents Association
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    • v.21 no.8
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    • pp.337-355
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    • 2021
  • Demographic changes such as an aging and low fertility, as well as changes in industrial structure and residential environment, revealed the limitations of urban development policies. Accordingly, the government is making efforts to ensure a prosperous life for the people by including the plan to expand the living SOC in the national urban regeneration policy. The main priority tasks of the Living SOC include the establishment of welfare infrastructure for children and the vulnerable. This means that interest in welfare is increasing recently. In this study, we analyzed the supply status of welfare facilities for the senior, child and the disabled in 17 cities and provinces nationwide using LQ (Location Quotient). After analyzing the causes of the imbalance in the supply of welfare facilities by region, the improvement plan was suggested. Each welfare facility was highly localized by region, especially the accessibility gap between cities and provinces is very large. Welfare finances were similar in most cities and provinces, with the exception of some cities and provinces. In the case of cities with very high living standards, sufficient facilities were not provided. Improvement methods are as follows; Combination of welfare facilities that can maximize space efficiency, Securing appropriate welfare finance in consideration of living standards by city and province, Differentiation of supply method considering demand and user types for welfare facilities.

Operating Strategies for Education and Training Programs for Nurturing North Korean Construction Workers (북한 건설기능인력 양성을 위한 교육·훈련 프로그램 운영 전략)

  • Jung, In-Su;Lee, Giu;Park, Hyeong-Geun;Lee, Young-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.9
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    • pp.262-269
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    • 2019
  • This study was conducted to pave the way for the development and operation of education and training programs to nurture skilled North Korean construction workers. Such programs would help to meet the expanded demand for setting up infrastructure, which is the backbone of the two Koreas' economic cooperation and mutual development. To achieve this initiative, the targets and scopes of education and training were determined by classifying business types for education and training purposes by construction sector. Furthermore, each education and training course and their allocated time frames were analyzed. Issues related to inter-Korean economic cooperation in the border area were also analyzed to determine regional characteristics. Education and training programs were thus classified into three types of infrastructure units: society, industry, and life infrastructure units. Social infrastructure units are the common demand of the whole border area, including construction of roads, railways, and harbors, as well as inspection and maintenance. Industrial infrastructure units are programs for industrial facilities centering on the designated special economic zone in the western part of the border area. Life infrastructure units are programs for infrastructure facilities such as large, complex facilities and residential facilities for the eastern tourist belt side.

Evaluation on Transverse Load Performance of Lightweight Composite Panels (경량 복합패널의 분포압 강도 성능 평가)

  • Kang, Su-Min;Hwang, Moon-Young;Kim, Sung-Tae;Cho, Young-Jun;Lee, Byung-yun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.1
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    • pp.146-157
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    • 2018
  • Over the last 10 years, the number of disasters has been increasing in Korea. As a result, the need for temporary residences or shelters for disaster conditions is increasing. In this study, post-disaster refugees housing was developed using lightweight composite panels that are lighter than the materials that make up the existing shelter. To accomplish this, the structural performance of the lightweight composite panel was validated. Among the performance tests on the panels, the transverse load test was conducted according to the ASTM E 72 criteria. As a result of the experiment, when each specimen was subjected to a uniformly distributed load, the allowable load was determined according to the span. All the experiments were ended due to a loss of adhesive at the junction of the skin and core. Further analysis was conducted to calculate the shear stress when the junction was dropped. The mean shear stress at the adhesive surface of a specimen, 150 mm and 200 mm in thickness, was 0.0170MPa and 0.0156MPa, respectively. This suggests that similar values were obtained from panels of equal thickness. In addition, this stress provides a criterion of judgment that could be used to inspect the structural performance of the panels. The performance of the panel was evaluated based on the allowable load, but it may be possible to increase the strength of the lightweight composite panel by improving the joining method to avoid separation from the junction.

Evaluation on In-plane Shear Strength of Lightweight Composite Panels (경량 복합패널의 면내 전단 성능 평가)

  • Hwang, Moon-Young;Kang, Su-Min;Lee, Byung-yun;Kim, Sung-Tae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.1
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    • pp.9-20
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    • 2019
  • The number of natural disasters in Korea, such as earthquakes, is increasing. As a result, there is growing need for temporary residences or shelters for disaster conditions. The aim of this study was to produce post-disaster refugees housing differentiated from existing shelters using lightweight composite panels. To accomplish this, the structural performance of lightweight composite panels was validated, and an in-plane shear strength test was conducted according to the ASTM E72 criteria among the performance test methods for panels. As a result of the experiment, the maximum load for each specimen under an in-plane shear load was determined. All the experiments ended with the tear of the panel's skin section. The initial stiffness of the specimens was consistent with that predicted by the calculations. On the other hand, local crushing and tearing, as well as the characteristics of the panel, resulted in a decrease in stiffness and final failure. Specimens with an opening showed a difference in stiffness and strength from the basic experiment. The maximum load and the effective area were found to be proportional. Through this process, the allowable shear stress of the specimens was calculated and the average allowable shear stress was determined. The average ultimate shear stress of the lightweight composite panels was found to be $0.047N/mm^2$, which provides a criterion of judgement that could be used to expect the allowable load of lightweight composite panels.

Coastal Complex Disaster Risk Assessment in Busan Marine City (부산 마린시티 해안의 복합재난 위험성 평가)

  • Hwang, Soon-Mi;Oh, Hyoung-Min;Nam, Soo-yong;Kang, Tae-Soon
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.5
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    • pp.506-513
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    • 2020
  • Due to climate change, there is an increasing risk of complex (hybrid) disasters, comprising rising sea-levels, typhoons, and torrential rains. This study focuses on Marine City, Busan, a new residential city built on a former landfill site in Suyeong Bay, which recently suffered massive flood damage following a combination of typhoons, storm surges, and wave overtopping and run-up. Preparations for similar complex disasters in future will depend on risk impact assessment and prioritization to establish appropriate countermeasures. A framework was first developed for this study, followed by the collection of data on flood prediction and socioeconomic risk factors. Five socioeconomic risk factors were identified: (1) population density, (2) basement accommodation, (3) building density and design, (4) design of sidewalks, and (5) design of roads. For each factor, absolute criteria were determined with which to assess their level of risk, while expert surveys were consulted to weight each factor. The results were classified into four levels and the risk level was calculated according to the sea-level rise predictions for the year 2100 and a 100-year return period for storm surge and rainfall: Attention 43 %, Caution 24 %, Alert 21 %, and Danger 11 %. Finally, each level, indicated by a different color, was depicted on a complex disaster risk map.

A Study on the Classification of 500m×500m Mesh Level by the Combinations of Building Needs in Busan for the Feasibility Evaluation of Ocean Energy Plant Introduction (해양에너지 활용지역 선정을 위한 부산시 500m 메시 레벨에서의 건물용도구성에 의한 유형화 연구)

  • Hwang, Kwang-Il
    • Journal of Navigation and Port Research
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    • v.35 no.1
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    • pp.57-62
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    • 2011
  • On the view point of renewable energies as energy sources of district heating and cooling plant, the purpose of this study is to develop, classify and map the 500m${\times}$500m mesh, of which is treated as normal size in DHC regulations for evaluation process. Followings are the results. Various building and geographical informations including 13 districts and 108 counties are re-defined to create 500m${\times}$500m meshes, and it is find out that 3,289 meshes among 8,463 meshes have meaningful floor areas. Only 59 meshes(1.8%) are evaluated as mesh which has more than 50% of building volume ratio per mesh. 5 clusters classified by principal analysis and cluster analysis with building needs' characteristics are defined. Gwang-an Dong is representative of cluster 1 characterized as commercial area, and the cluster 4, 5 which has mainly residential needs are distributed in Yong-ho dong. Because there are a lot of cluster 3 meshes, which has complex needs area based on residential, cluster 3 could be defined as representative of Busan metropolitan city.

A Study on the Influence Factors of Land Value by Urban Spatial Constitution (역세권 공간구조특성이 지가에 미치는 영향요인분석)

  • Lew, Seung Hwan;Kang, Junmo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.1D
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    • pp.61-69
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    • 2012
  • The purpose of this study is to draw the development direction of subway adjacent area by distance through an analysis on influence factors of land value by urban spatial constitution. The method of this study is analyzing influence factors of land value by the distance of subway adjacent area by using regression analysis method with urban spatial constitution variables from advanced research and drew the difference and extent of land value influence factors by distance of subway adjacent area. The result of analyzed the influence factors of land value by distance to draw the purpose of this study, which is the direction of development by distance of subway adjacent area, the connected area has shown the development direction as high density development centrally on commercial and improvement of accessibility and decrepit status, the directly influence area shows as complexity with high density centrally on commercial and business and lastly, the in directly influence area has shown the development direction as complexity of residential and commercial, improvement of accessibility and decrepit status. This study has used land value as a dependent variable to verify the speculation of this study based on the contents, the results of the analyze and the critical points of precedent studies to draw the development direction of subway adjacent influence area by using autonomous variables from advanced research. Upon this, drew a conclusion of this study as analyze of influence factors of land value could be a reference material for development of subway adjacent area.

Analysis on Impact Factors of Open-cut Type Excavation Work using Numerical Analysis Method (수치해석기법을 이용한 개착식 지반굴착공사의 영향인자 분석)

  • Seong, Joo-Hyun;Kim, Yong-Soo;Shin, Byoung-Gil
    • Journal of the Korean Geosynthetics Society
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    • v.12 no.3
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    • pp.43-53
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    • 2013
  • In this study, an analysis about the causes of different types of excavation on accidents is required in order to prevent the frequently occurring accidents related to the earth retaining structure and excavation. Also, analysis of influence was performed by using numerical typical soil conditions and construction trend using numerical analysis method. According to the analysis results of 25 accident cases, the main influence factors were found as following: insufficient of soil survey, instability of temporary facility and lack of groundwater treatment, etc. Furthermore, in the numerical analysis result of 22 cases, drainage method was occurred larger settlement than waterproof method in the Inland. In case of applying the earth anchor method, it needs more detailed in the regions, which are discovered soft ground or rock discontinuities. Also, The consolidated clay absolutely needs further consideration of excess hydrostatic pressure.