• 한국건설관리학회논문집
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• 제19권1호
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• pp.43-53
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• 2018

모듈러 건축은 공장 생산 과정을 토해서 품질과 정확도를 향상 시킬 수 있고 같은 유닛을 반복적으로 만들어내기 때문에 대규모 생산과 비용 절감이 가능하다. 특히, 현장 작업과 공장 생산을 동시에 진행 할 수 있기 때문에 공기 단축이 가능하다. 그러나 실제 모듈러 건축 프로젝트 조사 보고서에 따르면 모듈러 건축과 기존 건축의 평균 공사 기간에서는 큰 차이를 보이고 있지 못하다. 이는 모듈러 건축 프로젝트의 실제 시공 시 발생하는 공기 지연 문제 때문이다. 따라서 실제 시공 시 공기 지연 방지를 위한 대안 선택이 필요하며, 특히 대규모 모듈러 건축 프로젝트 현장 시공의 경우 현장에서의 모듈 양중 및 조립 과정이 공장 생산과 동시에 진행되기 때문에 대안 파악이 공장과 현장을 동시에 고려하여 수행되어야 한다. 본 연구에서는 규모에 따른 모듈러 건축의 실제 시공 시 프로세스의 차이를 토대로 IDEF0 모델링을 통하여 대규모 모듈러 건축의 관리 요소를 파악하였고 이를 이용하여 공기 지연을 판단할 수 있는 공장 생산량과 현장 시공량 관리 모델을 개발하였다. 이를 이용하여 대규모 모듈러 건축 실제 시공 시 발생하는 공기 지연 문제를 감소시킬 수 있을 것이다.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
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• pp.728-733
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• 1994

Scientific foundation for ultrasonic scale preventing devices construction was given in 40S-50S of this century but their production in former USSR was organized later in 70th. Several different principles of scale preventing is overviewed together with physical principles of ultrasonic method. Practical experience received in USSR in 80S is discussed. Technical decisions and inventions used for construction of the first device UZU-1 produced in Cheboksary plant are enumerated and principles of UZU-2 device are briefly sketched.

• 농촌계획
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• 제7권1호
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• pp.61-76
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• 2001

During the performance of large scale tidal land reclamation project along the coast line, the construction of large scale structures such as sea-dikes, closing estuaries will induce big changes of near-shore hydraulic behavior. In this paper, its is aimed to verify the change of tide and currents after the construction of sea-dike of the Saemangeum project along the coast line. Numerical scale model "TRISULA" which development by Delft Hydraulics in the Netherlands was used. "TRISULA" is adopting the finite difference numerical scheme, and mostly using for hydro-dynamic solution along the sea and estuaries. Model boundary is covering $100{\times}170$ Km and constructed with $133{\times}337$ grids. Outer side boundary is divided 48 sections, and input 37 tidal components are gained from another big scale numerical "Yellow Sea" model. Model calibrations & verifications were performed th field tide & current datas which were measured along sea-dike alignment during Aug. $1997{\sim}Apr$. 1999. And then, numerical simulation with the tide condition dated 17 Apr. 1999 was performed with & without sea-dike construction condition for the comparison. Evaluated boundary is 20 km out-side from sea-dike alignment. Four cross lanes were set up, each of lane contains 3 points, for the comparison of sea-dike construction effects. Results showing the tidal amplitude is reducing approximately 20 cm after the construction of sea-dike during spring tide condition, amplitude 6.9m. Currents after construction of sea-dikes along the alignment, the northern part shows 50%(inner), 90%(outer) and the southern part shows 10%(inner) 50%(outer) of the currents before construction.

• 한국지하수토양환경학회지:지하수토양환경
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• 제18권6호
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• pp.32-37
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• 2013

The scope of this study was to develop, design, and build an ex-situ remediation system of using the heating and water sparging treatment for the highly volatile DNAPL (Dense Non-Aqueous Phase Liquid) contaminated groundwater, and to conduct pilot testing at the site contaminated with DNAPL. The TCE (Trichloroethylene) removal was at the highest rate of 94.6% with the water sparging at $70^{\circ}C$ in the lab-scale test. The pilot-scale remediation system was developed, designed, and fabricated based on the results of the lab-scale test conducted. During the pilot-scale testing, DNAPL-contaminated groundwater was detained at heat exchanger for the certain period of time for pre-heating through the heat exchanger using the thermal energy supplied from the heater. The heating system supplies thermal energy to the preheated DNAPL-contaminated groundwater directly and its highly volatile TCE, $CCl_4$ (Carbontetrachloride), Chloroform are vaporized, and its vaporized and treated water is return edback to the heat exchanger. In the pilot testing the optimum condition of the HWSRS was when the water temperature at the $40^{\circ}C$ and operated with water sparging concurrently, and its TCE removal rate was 90%. The efficiency of the optimized HWSRS has been confirmed through the long-term performance evaluation process.

• 한국조경학회:학술대회논문집
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• 한국조경학회 2007년도 Journal of Landscape Architecture in Asia Vol.3
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• pp.180-185
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• 2007

Although the large-scale new socialist countryside construction has brought a opportunity for the rural landscape construction, it also impacted seriously the style of rural landscape. On the base of analyzing the advantages and disadvantages of new countryside construction, the paper proposed how to construct rural landscape in the construction tide.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2008년도 춘계 학술논문 발표대회
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• pp.159-163
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• 2008

The trend of Development Projects has been changing through a few recent years. Small-scale development projects in the past were usually for building residences or officetel in a big cities. making lots of profits. These projects made not only lots of profits but also unbalance between the urban centers and the suburbs. So government made some regulations to prevent the things from being worse anymore, planned to develop the country in balance and began to lead large-scale development project such as Inno city and Newtown. At first, in this study, the phases and the characteristics of development project's change will be looked around. And then, after overview about PFV(project financing vehicle) used a lot in large-scale development projects will be seen, the better ways to use PFV in large-scale development projects are going to be proposed by considering the problems in PFV's conformation.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회
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• pp.428-444
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• 2010

After underground excavation being introduced in dometic, many technologies have been storing up. One of them, measurement, has been recognized as an important item under excavation construction. But, unlike a large-scale construction, it was not been treated importantly at the general small-scale structures with poor ordering and original design was unchanged under construction was normal if the problem didn't occur on monitoring. In this paper, the site which safe and economical management as well as shortening construction period was made effectively using measurement result was introduced. Also, the site which was completed safely with analyzing measurement and reinforcement when unusual symptom happened was introduced. Using measurement result effectively will be able to obtain the safety and prevent unnecessary economical loss.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.556-560
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• 2011

Players of construction projects proceed with each work process by information gathering, modification and communication. Due to the complex and long-span lifecycle projects increased, it became more important to grasp this mechanism for the successful project performance in construction project. Hence, most project information management systems or knowledge management systems equip information retrieval system. There are two logic to infer the meaning of retrieval target; inductive reasoning and deductive reasoning. The former is based on metadata explaining the target and the later is based on relation between data. To infer the information flow, it is necessary to define the correlation between players and work processes. However, most established information retrieval systems are based on index search system and it is not focused on correlation between data but data itself. Thus, this research aims to research on process of information flow retrieval system for large-scale construction projects.

• 한국건설관리학회논문집
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• 제14권4호
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• pp.65-72
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• 2013

국내 CM현장은 경기침체로 인해 성장이 다소 둔화되고 있지만 최근 공공기관 이전사업 등으로 인해 CM시장은 꾸준한 규모를 보이고 있다. CM제도가 도입된 이래로 다수의 발주기관들이 건설사업관리 역량을 점차 보유하고 있지만 이에 대한 건설사업관리 조직 규모 산정을 위한 노력은 미흡한 실정이다. 본 연구에서는 공공공사 건축공사 10개소 사례를 바탕으로 통계분석과 관리인력당 사업비를 활용하여 건설사업의 관리업무를 수행하는 전체 관리조직의 규모 산정 방법을 도출하였고 Case Study를 통해 활용성을 검토하고자 하였다. 이를 통해 적정 관리인력 규모 산정 및 투입으로 건설사업의 원활한 업무수행과 성공적으로 사업을 수행하는데 기여하고자 하였다.

• 한국실내디자인학회논문집
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• 제16호
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• pp.75-81
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• 1998

With the rise of the economic level and the improvement of the standard of living the size of the interior work is becoming large and specialized, With the recent opening of the domestic interior decoration market the order of the large-scale interior decoration work is actively received and its efficient construction is vigorously made. Accordingly reliability is required in keeping with all the accuracy of computing interior construction expenses systematically is importantly emerging. The estimation sheet written in a kind of process mode and in an area made as the construction expense breakdown mode were statistically treated and analyzed as well as quantity computation breakdown data. In determing the major factors that expert an influence on the factors of changes in construction expenses as well as the compositional ratio of construction work that becomes basic material for developing the cost model of interior decoration work the following conclusion could be made: Improvement should be made to suit the present situation by synthesizing and arranging the data practically used in current interior construction expenses. Required construction expenses for the kind of work common to each construction field are showing a given proportion and the required construction expenses of rather small scale interior construction work tend to be irregular. It is necessary to compute optimal construction expenses by calculating the optimal period of work and working personnel in consideration of the influential factor in each work.