• Title/Summary/Keyword: 공사변경

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A Study on the Cadastral Characteristics of Dokdo-ri (독도리의 지적 특성 연구)

  • Lee, Beom-Gwan
    • Journal of Cadastre & Land InformatiX
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    • v.49 no.2
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    • pp.5-21
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    • 2019
  • The purpose of this study is to investigate and analyze the cadastral transformation process of Dokdo-ri based on the institutional concept of the cadastre, while presenting the cadastral characteristics of Dokdo-ri therefrom. For this purpose, both the literature search method and the Internet search method were used. As for the analysis method, descriptive analysis method and comparative analysis method were used. The findings support that the cadastral characteristics of Dokdo-ri is drawn as follows: First, from the physical point of view, the cadastral characteristics of Dokdo-ri shows that the territory is given by the smallest lot numbers in the country and that the territory is also given by the land lot number consisting of small size lots without continuing the ground for which the cadastral resurvey project was carried out for the first time. Second, in terms of the rights, the cadastral characteristics of Dokdo-ri shows that the entire area given by the lots is owned by a single owner and no ownership has been changed. Third, in terms of its value, the cadastral characteristics of Dokdo-ri shows that it is the only area given by the lots of which the officially assessed individual land price has never been decreased in the entire lots. Fourth, when it comes to presenting the cadastral characteristics of Dokdo-ri in terms of the use control/restriction, the consciousness of preserving Dokdo-ri and the consciousness of enhancing real territory are confronted but due to the Cultural Heritage Protection Act etc, the cadastre turned out to be a very passive cadastral work.

Standardization of the Lease Fee Assessment System of Busan Port Container Terminals (부산항 컨테이너부두 임대료 산정체계 표준화 방안)

  • Kil, Kwang-Soo
    • Journal of Korea Port Economic Association
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    • v.27 no.3
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    • pp.65-90
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    • 2011
  • Private stevedoring companies are leasing and operating the container terminals of the Busan Port. The total amount of lease fees private stevedoring companies paid in 2010 reached 161 billion wons, an approximately 66 percent of the total revenue of the Busan Port Authority(BPA). In other words, lease fees are the most important revenue source for BPA. However, the lease fee assessment system of Busan container terminals goes against the principle of equity due to different assessment methods and criteria adopted by each container terminal. Therefore, the purpose of the study is to analyze the systematic problems of the lease fee assessment system that is used at Busan container terminals, and propose a new standardized scheme with a case study on the new system. In order to standardize the assessment system, the assessment methods need to be simplified by using the Discounted Cash Flow(DCF) method. In addition, the assessment criteria such as assessment duration, discount rates, price indexes, estimated container throughputs, sales unit price per TEU, operation costs, including labor costs, need to be standardized as well. The new standardized assessment system can be applied to estimate lease fees for new terminals. However, for existing terminals to run the new system, factors such as assessment duration, discount rates, price indexes, estimated container throughputs, investment and re-investment costs, and maintenance & repair costs of the new system should be changed slightly.

A Research on the Application of Eco-Friendly Approval Criteria in Forest Land-use (자연친화적 산지이용허가기준 적용 방안 연구)

  • Park, Shin-Won;Choi, Sang-Hee;Cho, Young-Tae
    • Land and Housing Review
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    • v.3 no.1
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    • pp.33-43
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    • 2012
  • The research which it sees is the simulation research for "The Ecological Diversion of Forest Land-Use System". It accomplished the simulation which applies a permission standard, it developed escape it did a model and the basic draft. From the research which it sees in order to investigate the application characteristic of natural intimate mountain district application standard the mountain district whole aspect instance middle actual object a time mountain district use standard about under selecting which it will yell it applied. "Natural intimate mountain district development standard triangular position plan research" from compatibility of the mode of life mountain district whole aspect permission standard which is proposed about under investigating it presented the improvement program and a institutional improvement direction of corresponding standard. About under preserving plan it applies the yearly environment the mountain district to sleep it prepares the foundation for it accomplished the transcendental research for. With the achievement resources which the mountain district has resultantly must preserve a value, limit of the development size it will be able to minimize the effect which it follows in development, the arrangement method back could be proposed, also the case which will use the mountain district where it is damaged induces the development which cabinets to the concept of demobilization, the case which will apply the existing forest resources takes a triangular position with the act it will be able to increase the circulating value of the resources and will do.

A Study on the Evaluation and Improvement of Rental Housing Asset Securitization in Korea: Case Study on Korea Land and Housing Corporation (임대주택 자산유동화 사례평가 및 구조개선사항 연구)

  • Lee, Jong-Kwon;Kwon, Chi-Hung
    • Land and Housing Review
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    • v.4 no.1
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    • pp.107-117
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    • 2013
  • This study aimed to assess the rental housing ABS in Korea, and to suggest ways of improving the structure of existing rental housing ABS. Thus, the three major assessment for existing public rental housing ABS case can be summarized as follows : First, when viewed in terms of the accounting treatment, rental housing ABS which use the future receivables as underlying asset, can not enjoy off-balance-sheet effect. Second, when viewed from the point of financing costs, the rental housing ABS interest rate being higher than unsecure bond is very unreasonable nevertheless the ABS being off-balanced. Third, when viewed from the liquidity effect, the originator (LH) use the ABS as a means of diversifying funding in a serious liquidity crisis situation. The Improvement of rental housing ABS based on the evaluation results can be summarized into two broad. First, it is a plan to handle the off-balance-sheet effect in a way of changing the accounting treatment of rental payment. Second, it is a plan to reducing the structuring cost and interest rate in ways of multi-asset securitization structure, self-trust structure, and adopting legal CB structure.

Slope Failure Along the Weathered And Mobilized Foliation Plane : Studies for Causes of the Failure and the Supporting Methodologies (풍화된 엽리면을 따라 붕괴된 대절토 사면의 붕괴요인 분석과 보강방안에 대한 연구)

  • Hwang, Sang-Gi;Kim, Young-Muk;Ji, In-Taeg;Jeon, Byoung-Choo
    • Proceedings of the Korean Geotechical Society Conference
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    • 2009.09a
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    • pp.775-784
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    • 2009
  • Weathered foliation could act as a critical failure plane because this type of plane tend to have low roughness and long extensions. A big constructed slope at $\bigcirc\bigcirc$ road construction site was failed due to the block movement along a fault zone which is parallel to foliation. Tectonic activity reactivated a fault zone parallel to foliation, and the fault clay within the shear zone metamorphosed retrogressively to chrolite. The failed block moved when the block weigh lost the balancing with the resisting force of the retrogressively metamorphosed chrolite. Evaluating the three dimensional distribution of the foliation was critical for establishing a plan for the stabilization of the slope. For this purpose, 10 boreholes were drilled as a lattice distribution, and the BIPS analyses are performed at each boreholes. The fractures measured in the boreholes are projected into 15 cross sections and their distributions are analysed, using Fracjection software. The projection analyse show that the strike of the foliation gets dipper towards left side of the slope. This geometry indicates that there are more failure block geometry at left side of the slope. Potential failure planes are searched using the projection method, and these information are provided for further support design.

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Quantity Management Model for Manufacturing and Assembly of Large-scale Modular Construction Projects during Construction Phase (대규모 모듈러 건축 프로젝트 현장 시공 시 공장 생산량 및 현장 시공량 관리 모델)

  • Choi, Onekyu;Lee, Hyunsoo;Park, Moonseo;Hyun, Hosang
    • Korean Journal of Construction Engineering and Management
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    • v.19 no.1
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    • pp.43-53
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    • 2018
  • Modular construction can improve construction quality and accuracy through manufacturing process, and it allow massive production and cost savings by repeatedly producing the same unit. In particular, it is possible to reduce the time because the on-site work and the manufacturing process can be carried out at simultaneously. However, according to the modular construction project survey report, there is no significant difference regarding the average construction period between modular construction and conventional construction. This is due to schedule delay problems that occur during construction phase. Therefore, it is necessary to select alternatives to prevent schedule delay during on-site construction progressing. Especially, in case of large-scale modular construction project, on-site module assembly and manufacturing process are performed concurrently. Hence, identification of alternatives should be done at the co-occurrence by taking both manufacturing and on-site work process in to account. In this research, the management factors of large-scale modular construction project were identified through the IDEF0 modeling, and the quantity management model for manufacturing and assembly is developed. This will reduce the schedule delay problem that occurs in the progression on-site work of a large scale modular construction.

Issues on a Large-scale Enlargement of Urban Area and their Implications for a Management Plan (도시관리계획에 의한 대규모 도시지역 확장의 실태와 시사점)

  • Yoon, Jeong-Joong;Kim, Ryoon-Hee;Choi, Sang-Hee
    • Land and Housing Review
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    • v.1 no.1
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    • pp.103-111
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    • 2010
  • The purpose of the paper is to research issues and implications on a large-scale enlargement of urban area in city management plan. This study investigated laws and regulations in force and carried out case study for three cities such as Yangju-si, Gimpo-si, Whaseong-si. As a result of analysis, three points at issue were abstracted and improvement ideas for each of them were suggested as follows. First, to set up adequate size of urban area, it is necessary to consider resonable planning for population, spatial structure, zone of life and land use in city comprehensive plan and city management plan. Second, to decrease arguments about scope and bounds of urban area, it is important to make general and specific guidelines to set up them. Third, to manage new urban area and its surroundings efficiently, it is necessary to subdivide zoning of non-urban area strictly, to restraint individual location of factories or cattle sheds, to make a proper infrastructure plan in advance, to administer strongly the permission of development behavior and to control strictly consecutive and joining development in non-urban area.

Compressive Strength Development Properties of Concrete using Sodium based Accelerating Admixtures (나트륨계 기반 조강형 혼화제를 사용한 콘크리트의 압축강도발현 특성)

  • Song, Yeong-Chan;Lee, Tae-Gyu;Kim, Yong-Ro;Seo, Chi-Ho
    • Journal of the Korea Institute of Building Construction
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    • v.18 no.3
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    • pp.259-266
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    • 2018
  • In recent years, the early strength of concrete is important in order to shorten the time of form removal at the construction site. The purpose of this study is to analyze the moment of form removal as investigating the amount of cement contents and the physical properties and strength of the concrete according to types of admixture in the curing temperature of $10^{\circ}C$ for concrete of 21 to 27 MPa. As a result, it was found that compressive strength of concrete could not be secured 5 MPa by 36 hours even if the amount of cement contents were increased to $360kg/m^3$ with plain admixture. Also, it was confirmed that the strength improvement rate was excellent when using the accelerating agent with polycarboxylic acid type, and the moment of compressive strength of 5 MPa was estimated at 30 hours.

Assesment of Load and Resistance Factored Design Value for PHC Driven Pile (PHC 항타말뚝의 하중저항계수 산정)

  • Park, Jong-Bae;Park, Yong-Boo;Lee, Bum-Sik;Kim, Sang-Yeon
    • Land and Housing Review
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    • v.4 no.3
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    • pp.279-286
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    • 2013
  • Driving a prefabricated pile is the efficient construction method with low cost and excellent bearing capacity charateristics. But pile drinving method has often been changed to bored pile method with mechanical boring due to the unexpected problems occurred in the various domestic ground condition with landfill. So, pile driving method has more uncertainty than the Bored Pile method. This paper proposed LRFD design value which is one of limit states design method for the PHC driven pile used as building foundation to guarantee the reliable design with reduced uncertainty. This paper analysed 221 dynamic load test results(E.O.I.D : 93, Resrike : 128) and the different methods of estimating bearing design(Meyerhof method & SPT-CPT conversion method), and proposed LRFD value for each design reliability Index 2.33 and 3.0 for PHC driven pile. LRFD value of PHC driven pile represents 0.43~0.55 for Meyerhof method and 0.40~0.49 for SPT-CPT conversion method according to the deign reliability index.

A Study on Mixed-use Development Cases Using Closed Quarry Site of Overseas; the UK and Australia (개발종료 채석장 부지를 활용한 해외 복합 개발 사례에 대한 고찰 : 영국과 호주 사례)

  • Cho, Seungyeoun;Yim, Gil-Jae;Lee, Jin Young;Ji, Sangwoo
    • Economic and Environmental Geology
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    • v.54 no.5
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    • pp.505-513
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    • 2021
  • Recently, housing prices in metropolitan areas is also increasing in the UK and Australia. Their governments are trying to solve this problem by the housing development in the quarry sites near cities. The cases reviewed in this study, Erith Hill Quarry (The Quarry), Plymstock Quarry, Lilydale Quarry (Kinley), and Bombo Quarry are the mixed-used development cases in the closed quarry sites through the urban planning system. In the UK, the local government uses the urban planning scheme such as the planning permit system, section 106. The local government permits the quarry site development on the condition that it provides necessary public facilities, such as schools and affordable housing for the local community. In Australia, local governments use up-zoning permission rights to convert land uses in quarries from industrial to mixed-use. Development plans have to include urban infrastructure and open space in addition to affordable housings. In the case of Australia, establishing a development plan in advance and filling the quarry pit with overburden through a phased development is expected to have the effect of reducing the project cost. Both countries think that developing brownfields, such as quarry sites, is a more sustainable and eco-friendly development from the perspective of future generations than developing new green fields. Such a perspective of the UK and Australia will be able to give policy implications for our slightly rigid urban development system.