• Title/Summary/Keyword: site survey

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A Study on the Leachate Distribution of the Mooreung Landfill Site with Electrical Resistivity Surveys (전기비저항 탐사를 이용한 충주 무릉매립장 침출수 분포에 관한 연구)

  • Kim, Jun-Kyoung
    • The Journal of Engineering Geology
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    • v.16 no.4 s.50
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    • pp.455-463
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    • 2006
  • The electrical resistivity prospecting method with dipole-dipole array was applied to the Mooreung landfill site in order to survey the existence of leachate around the landfill site. Moreover, if there is leachate within Mooreung landfill site, the analysis of potential pathways to exterior environments was tried. Within the landfill site, the over-all characteristics of the electrical resistivity anomalies suggest that the leachate induced from the landfill materials has infiltrated the basement rock and fill the pores of basement rock in some parts of the landfill site. The consistency of the anomaly locations (left part of each survey line), anomaly geometries, and absolute resistivity value of anomaly through the 3 survey lines suggests that the resistivity anomaly be connected from the upstream to the downstream and correspond to the leachate material. Finally, the result from the electrical resistivity survey line near the gateway of the landfill site suggests that some of the leachate induced from landfill material leaks to the exterior groundwater system. It is necessary that more surveys using both geochemical and geophysical methods should be performed to find out potential pathways and depths of the leachate more precisely.

THE CONFLICT MANAGEMENT STYLE ADOPTED BY THE SUBCONTRACTORS OF HONG KONG BUILDING PROJECTS

  • Andy K.W. Ng;Andrew A.D.F. Price
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.628-634
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    • 2009
  • It is a common practice in Hong Kong for the main contractors of local building projects to sublet most of the work to subcontractors. Consequently their roles have gradually transformed from a constructor to a manager of subcontractors. The outcomes of a project therefore depend heavily on the subcontractors' performance. However, most of the subcontractors complain that they are unable to efficiently and effectively operate due to site coordination problems, such as inaccurate site reference lines, caused by main contractors. The site problems may consume significant amounts of resources if practical solutions cannot be agreed by the project participants early enough. Rahim Organizational Conflict Inventory-II (ROCI-II) model was developed by M.A. Rahim that measure five types of conflict management style including Integrating, Obliging, Dominating, Avoiding and Compromising. This paper presents the questionnaire survey based on the ROCI-II model to rank the preference on the conflict management style adopted by the project representatives of the subcontractors in handling the site coordination problems and its impact to the time used to agree the solutions to the different types of site coordination problems with main contractor. The survey results show that most of the subcontractors' project representatives preferred to adopt the Compromising style to tackle the site coordination problems and the time used to agree the solutions with main contractor was influenced by the conflict management style adopted.

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Realities of a Hospital's web-site' Management and It's Effect on Hospital Management (병원의 홈페이지 관리운영 실태와 병원경영에 미치는 효과)

  • Hwang, Byung-Deog;Im, Bock-Hee;Lee, Young-Hwan
    • The Journal of the Korea Contents Association
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    • v.10 no.3
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    • pp.241-249
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    • 2010
  • The purpose of this study is to provide basic information for marketing strategy for hospitals in Busan Metropolitan area by investigating of the web-site management and effect on hospital management about the web-sites managers. Survey of 53 web-site managers was taken between May 1st and May 25th 2008. The survey was carried out to gather information about characteristics of web-site managers and creating, managing and operating process of web-sites and web-sites' effect and information sharing abilities. The results of survey are as follows. First, most of hospitals' web-sites were launched between 2001 to 2005 via outsourcing. Most of hospitals spent about one to three million won for their web-sites and renew web-sites every year. Most of these web-sites have hospital PR, Q&A, and on-line support functions. Second, most of whom participated in survey have agreed that a hospital web-site has influence in hospital management in various categories such as introducing hospital to medical examination, making doctor's appointment, providing patient guidance, providing medical information, and patient counselling. This study shows that effects of web-sites are closely related to web-site satisfaction level. Therefore, to raise the hospital satisfaction level, it is necessary for hospitals to put more efforts in creating web-site that provides more medical information and improved on-line services.

The Efficient Measurement Method of Buried Heritage by 3D Image Acquisition (3차원 영상취득에 의한 매장문화재의 효율적 측정기법)

  • Lee, Kye-Dong;Lee, Jae-Kee;Jung, Sung-Heuk
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.25 no.2
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    • pp.157-163
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    • 2007
  • Recently, industrialization of a country is accelerated and request of society infrastructure is raised so national land development is activity view. Accordingly, the search for a wide-ranging buried heritage do acted in large construction region. Because the buried heritage get buried in land that it is necessary to the precision search and research for a record and a preservation. Until now, Surveying techniques of a historic site have made status map, profile and cross section map through leveling survey, total-station survey and sketch of specialist. So, to solve problems existing relic survey or drawing making method have using digital camera these researches rapidly and economically obtain stereo image of object and present a technique that constructs 3D image model for digital photogrammetry method. Also, these researches construct 3D image model for record and preservation of a historic site through site test and in 3D and graphical express a historic site and support works that produce other maps if we need it. offer base data of GIS (Geographic Information System) to collect and analyze overall, information of a historic site.

Detection of Limesilicate Cavities by 3-D Resistivity Survey (3차원 전기비저항탐사에 의한 석회암 공동탐지)

  • Park, Sam-Gyu;Yi, Myeong-Jong;Kim, Chang-Ryol;Son, Jeong-Sul;Kim, Jung-Ho;Cho, Seong-Jun;Seo, Goo-Won
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.147-152
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    • 2006
  • In this study, we examined the applicability of three-dimensional electrical resistivity survey to detect underground cavities of ground subsidence area at the field test site, located at Yongweol-ri, Muan-gun in Korea. Underground cavities are widely present within the limesilicate bedrock overlain by the alluvial deposits in the area of the test site where the ground subsidences have occurred in the past. The limesilicate cavities are mostly filled with groundwater and clays in the test site. Thus, cavities have low electrical resistivity compared to the surrounding host bedrock. The results of the study have shown that the zones of low resistivity correspond to the zones of the cavities identified in the boreholes at the site, and that the three-dimensional electrical resistivity survey used are very effective to detect underground cavities.

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A Study on the Representation Process of Architectural Design Concepts considering Regional Characteristics (지역특성을 고려한 건축 디자인 개념 표현 과정)

  • Ryoo, Im-Woo
    • Korean Journal of Human Ecology
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    • v.24 no.3
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    • pp.451-461
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    • 2015
  • It was the purpose of this study that propose architectural design process through analysis of concepts considering regional characteristics. The procedure of this study was as follows : First, classifying design process through investigating paper-survey and case studies. And We would investigate representation process of design concepts applied to design competitions entries. Finally, we would investigate design process applied to buildings in various districts. In the results, we could find that domestic architects were applying to site plan, floor plan, elevation plan, section plan and mass plan-led design process to express design concepts. And according to survey on buildings in various districts, we could verify that architects were applying various design process to express design concepts according to site characteristics. These results could help architects to design appropriately, according to site characteristics.

A Study on Building a Web-based Reference Resources Site (웹 기반 참고정보원 사이트의 구축에 관한 연구)

  • 문정순
    • Journal of Korean Library and Information Science Society
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    • v.30 no.4
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    • pp.229-254
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    • 1999
  • As the number of Web reference resources are gradually increasing, reference librarians have to create a Web-based reference resources site. This site includes links to the Web reference resources of good quality, so that reference librarians and users will become accustomed to using these resources. This Study first explores the function of the Web-based reference resources site. Next, it carries out a survey of the current trends in america and Korea. Finally, a model Web-based reference resources site for academic libraries is developed.

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Study on the Development of Slope Survey Program for the Real-time Database (실시간 데이터베이스 구축을 위한 사면조사 프로그램 개발에 관한 연구)

  • Lee, Jong-Hyun;Choi, Ji-Yong;Koo, Ho-Bon
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.1282-1288
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    • 2010
  • In this study, Site Investigation Program of cut slope is developed using related techniques and experience got from practical application of Inventory Survey Program of cut slope in work for last 4 years. The Site Investigation Program is designed to can be loaded to the Mobile PC for convenience of carrying in filed, convenience of data input and revision, application of diverse programs, convenience of confirming data and facility of establishment of real-time database system using wireless communication like Inventory Survey Program. Also, for connection with Inventory Survey Program, it has a same work process and can establish real-time database system of almost data obtained in filed using stability analysis tool loaded in this program. Application of this developed program is expected to be an opportunity that can contribute to development of slope investigation and database system area using IT techniques.

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Characteristics of Distribution and Potential Route of Contaminants at Waste Disposal Site (폐기물매립지 주변의 오염물질 분포 및 이동 특성)

  • 박성원;황세호;이평구;박인화;신성천;이상규
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2001.04a
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    • pp.144-148
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    • 2001
  • A geophysical and geochemical study was performed to verify the depth of landfill as well as the horizontal/vertical distribution of leachate at the landfill site located in Gongju. The electrical resistivity, with dipole-dipole array and dipole spacing of 5m, was applied along the nine survey lines and electromagnetic induction survey was conducted along the perimeter traverse surrounding the landfill. Cations, anions and stable isotope ($\delta$D and $\delta$$^{18}$ O) analyses were performed on about 63 water and leachate samples collected in dry and rainy seasons at 31 sites. The result of electromagnetic induction survey make it possible to derive the potential route of leachate in the past or present. The imaging of processed resistivity field data show that the possible route of leachate doesn't exist except the survey line 7. The weak zone traversing the landfill, however, is revealed by the electrical resistivity imaging, which may be the potential route of leachate toward the deep ground. The geochemical data agree well with geophysical data for deducing possible route of leachate of the site.

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Development of Standard Estimates for Garden Construction: Focused on Planting

  • Hong, Kwang-Pyo;Lee, Hyukjae
    • Journal of People, Plants, and Environment
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    • v.22 no.5
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    • pp.467-480
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    • 2019
  • Standard estimates are the numerical data of a unit quantity required for construction work such as the amount of materials, manpower, and the use of equipment required and are also a basis to calculate construction costs. Unfortunately, standard estimates for construction have also been used for garden construction these days as no standard estimates for garden construction have been developed or documented until now. As a result, many problems have arisen at garden construction sites since landscape construction and garden construction differ in terms of scope, size, design and construction methods. The purpose of this study was to develop standard estimates for garden construction for proper calculation of the cost of garden construction and to ensure gardens are created following appropriate construction processes. In order to develop standard estimates for garden construction, a preliminary survey was conducted on experts to understand current issues at first. After that, a questionnaire survey was done to examine problems of construction processes and ways of improvement, and on-site inspections were conducted utilizing CCTVs at construction sites to identify the actual amount of manpower required on site. Based on the results of the surveys and on-site inspections, a draft version of standard estimates for 5 types of planting work for garden construction was developed. Developing standard estimates for garden construction will serve as a stepping stone for the transparent and proper compensation for garden construction work, which will not only contribute to addressing issues between consumers and construction companies, but also to the stabilization of market economy and job creation.