• Title/Summary/Keyword: Urban Settlement

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A Study on the Improvement of Settlement Environments considering Survey of Residents in Seosan, Chungnam (서산지역 주민의식조사를 통한 도시정주환경 개선에 관한 연구)

  • Park, Tong-So
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.10
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    • pp.4869-4876
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    • 2012
  • This study was performed to propose a improvement guide for the region of Seosan located at the north-west part of Chungnam province. Thus, this study recognizing that urban revitalization design of Seosan should be established based on inheritance of regional history and traditional culture. This study was processed with following procedures and methods. First, this study drew the recent trends and effective ways as proportion system of urban revitalization design through collecting and analyzing literatures. Second, performed to the survey of the consciousness consider urban environmental settlement of residents in Seosan using a statistical method. Third, carried out case studies as urban revitalization design of central area in Seosan.

Analysis of the Long-term Settlement Behavior Due to the Additional Embankment on the Waste Lime Landfill in Public Waters Reclaimed Land (공유수면 매립지내 폐석회 매립시설의 추가성토에 따른 장기침하 거동 분석)

  • Kang, Jeong Ku;Yi, Yeun Jeung
    • Journal of the Korean Geosynthetics Society
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    • v.21 no.2
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    • pp.1-9
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    • 2022
  • Recently, the reclamation of public waters has been on a downward trend due to environmental problems, but there is a limitation to evaluating environmental characteristics index uniformly. In this study, the stability of settlement behavior on public waters reclaimed land was analyzed using the experimental test. From the primary consolidation influence factors, the characteristics of the waste lime was similar that of clay in process of consolidation. Assuming that the waste lime landfill is the layer reinforced with thin geosynthetic reinforcement, the settlement was predicted by calculating the amount of increase using the Westergaard method. As a result of predicting settlement with degree of consolidation, it was found that the increase in stress was reduced by 40% when the surface layer of the soft ground was reinforce with geotextiles compared to the case where it was not reinforced. In addition, the consolidation behavior characteristics of clay and waste lime were compared using the correlation between the plasticity index and internal friction angle of waste lime. Since the waste lime in the public process of consolidation, it was predicted that long-term settlement will increase further.

A Study on the Rural Settlement and Rural House Planning in North Korea (북한의 농촌 마을배치 및 주거 계획에 관한 연구)

  • Lee, wang-ki;O, young-sik
    • Journal of the Korean Institute of Rural Architecture
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    • v.1 no.2
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    • pp.133-144
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    • 1999
  • This paper is a study of rural settlement and housing planning in North-Korea. All the housing facilities belong to the government in North-Korea. which leads to the system in which the North-Korea government controls all the housing problems. The North-Korea government actively engages in the settlement of housing problems have close relations with and effects on the urban housing ones. The government has designed to make the rural areas self-sufficient in matters of the rural housing arrangement. They try to make an axis in the middle of each village uniformly and heighten its symbolism of the rural. They place all the symbolic structures in the center to express the ideas of the ruler's. thus making the whole village a study hall where the villagers are forced to learn the ruler's ideas as a way of brainwashing the people.

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The Reinforcement Effect of Stone Columns on Refuse Landfill (매립지반에 적용된 쇄석말뚝의 보강효과)

  • Lee, Bong-Jin;Bae, Woo-Seok;Lee, Jun-Dae
    • Journal of the Korean Society of Safety
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    • v.15 no.2
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    • pp.97-102
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    • 2000
  • This paper presents the design, construction and performance of ground treatment to support road embankment on refuse landfill. Long-term settlement of refuse landfill is analysised by Sower and Yen/scanlon. As a results of site test, predicting settlement excess the allowable settlement and ultimate bearing capacity is not satisfied. The effectiveness of DDR(Deep Dynamic Replacement) is monitered by field tests (SPT, PBT, PMT) before, during and after construction of the stone columns. The ultimate bearing capacity for reinforced landfill by stone columns obtained from the in-situ test results has been compared with the existing theories. In municipal wastes landfill, settlement after treatment using stone column is satisfied to allowable residual settlement. Therefore, long-term stability can be gain in these cases.

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A Study on Establishment of Rural Living Service Functions by Settlement Class (정주계층별 농촌생활서비스 기능정립 및 취약지역 기준에 관한 연구)

  • Cho, Young-Jae;Yun, Jeong-Mi;Han, Seung-seok;Jo, Seoung-Hyun
    • Journal of Korean Society of Rural Planning
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    • v.29 no.4
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    • pp.13-26
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    • 2023
  • Recently, South Korea has prepared laws and systems to systematically manage rural spaces in response to the era of population decline and is making various efforts to promote related policies. However, various basic studies that can support this are still insufficient. In particular, in this study, the functions and roles of each settlement class were established along with the classification of the sedentary classes in rural areas, and the classification system for rural living services was established, and the hierarchy by functional facilities and the minimum standards for vulnerable areas (accessibility) were established. Specifically, in this study, the settlement class was divided into 4 classes of "central area - midpoint area - small point area - hinterland", and each function and role was presented, and the rural living service classification system was finally reestablished as 10 sectors and 31 functional facilities. In addition, the hierarchy and accessibility standards of rural living service functional facilities was set within 5 to 15 minutes for 'lower and basic services', within 10 to 20 minutes for 'medium and basic services', within 15 to 30 minutes for 'intermediate and complex services', within 20 to 60 minutes for 'high car/complex service' and within 10 minutes for 'urgent service'.

Foundation Differential Settlement Included Time-dependent Elevation Control for Super Tall Structures

  • Zhao, Xin;Liu, Shehong
    • International Journal of High-Rise Buildings
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    • v.6 no.1
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    • pp.83-89
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    • 2017
  • Due to the time-dependent properties of materials, structures, and loads, accurate time-dependent effects analysis and precise construction controls are very significant for rational analysis and design and saving project cost. Elevation control is an important part of the time-dependent construction control in supertall structures. Since supertall structures have numerous floors, heavy loads, long construction times, demanding processes, and are typically located in the soft coastal soil areas, both the time-dependent features of superstructure and settlement are very obvious. By using the time-dependent coupling effect analysis method, this paper compares Shanghai Tower's vertical deformation calculation and elevation control scheme, considering foundation differential settlement. The results show that the foundation differential settlement cannot be ignored in vertical deformation calculations and elevation control for supertall structures. The impact of foundation differential settlement for elevation compensation and pre-adjustment length can be divided into direct and indirect effects. Meanwhile, in the engineering practice of elevation control for supertall structures, it is recommended to adopt the multi-level elevation control method with relative elevation control and design elevation control, without considering the overall settlement in the construction process.

Prediction methods on tunnel-excavation induced surface settlement around adjacent building

  • Ding, Zhi;Wei, Xin-jiang;Wei, Gang
    • Geomechanics and Engineering
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    • v.12 no.2
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    • pp.185-195
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    • 2017
  • With the rapid development of urban underground traffic, the study of soil deformation induced by subway tunnel construction and its settlement prediction are gradually of general concern in engineering circles. The law of soil displacement caused by shield tunnel construction of adjacent buildings is analyzed in this paper. The author holds that ground surface settlement based on the Gauss curve or Peck formula induced by tunnel excavation of adjacent buildings is not reasonable. Integrating existing research accomplishments, the paper proposed that surface settlement presents cork distribution curve characters, skewed distribution curve characteristics and normal distribution curve characteristics when the tunnel is respectively under buildings, within the scope of the disturbance and outside the scope of the disturbance. Calculation formulas and parameters on cork distribution curve and skewed distribution curve were put forward. The numerical simulation, experimental comparison and model test analysis show that it is reasonable for surface settlement to present cork distribution curve characters, skewed distribution curve characteristics and normal distribution curve characteristics within a certain range. The research findings can be used to make effective prediction of ground surface settlement caused by tunnel construction of adjacent buildings, and to provide theoretical guidance for the design and shield tunnelling.

Extraction of Standard Rural Area for Design of Rural Settlement System in Reclaimed Land (간척지 농촌설계를 위한 표준농촌지역의 도출)

  • 최수명;고재군
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.28 no.2
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    • pp.53-62
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    • 1986
  • An Idea of Standard Rural Area(SRA), the rural areas which have higher ruralities of the rice cropping region and also higher urban characteristics, was conceptualized to develop the tentative basic indices necessary for rural settlement design in reclaimed land. The SRA's were determined by a technique of the principal component analysis with relevant data from 81 counties or cities located in the west side of Korea(Chon-Nam,Chon-Buk, Chung-Nam, Kyung-Ki Do).By the definition of the SRA, the principal component analysis is seperately carried out by two subworks, analyses of rurality and urban characteristics. From the analysis, rurality of the SRA is characterized by four components which appears to describe the scale of farm management, intensive farming, soundness of farming and farming basis on rice cropping, while urban characteristics of the SRA by three components to describe the accessibility, keeping ratio of infrastructures and level of medical services. Through grouping and synthesizing two characteristics of all counties by each component score, 24 counties were classified as urban-rural harmonized region which is the same result as that obtained from the extraction index being more than 50% of available area to total area except 1 county. Therefore, SRA is defined as the group of counties having more than 50% of available area to total area.

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