• Bulletin of the Korean Chemical Society
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• 제13권5호
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• pp.471-473
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• 1992

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2004년도 춘계학술발표회
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• pp.600-605
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• 2004

The road construction with horizontal expansion of country using and augmentation of traffic demand is advanced actively and it accompanies hereupon, the above of 70% of the country is formed at the mountain in our country where the hazard cut slope has been created. In this study, It is prepared a effective management countermeasure of cut slope introduced priority investigation decision method against hazard cut slope which is influenced by abnormally rainfall by an unusual change in the weather such as a guerilla rainfall character. In meaning link, It was executed collapse cause by failure character analysis in the cut slope which has failed for the last five years and it is prepared the hazard grade criterion from E to A grade according to collapse cause. It is decided that a maintenance management grade by the hazard grade classification criterion of cut slope. So It is possible to hazard cut slope. It is established failure protection counter countermeasure by effective maintenance management through the hazard grade c1assification criterion and it will be able to dispose to advanced nation level like Hong Kong and Japanese.

• 한국건축시공학회지
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• 제10권6호
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• pp.19-26
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• 2010

건설 신기술은 현장적용에 대한 불확실성, 기술적 우위의 확신결여 등으로 활성화가 어렵고 신기술 활용실적은 미흡하다. 따라서 건설신기술 현장 적용에 따른 문제를 해결하기 위해 신기술 예측자료가 필요하며, 성능평가 모델이 요구된다. 본 연구의 목적은 의사결정도구로서 건설시뮬레이션을 활용한 신기술의 현장 적용시 예측되는 생산성과 비용을 평가할 수 있는 방안을 도출하는 것이다. 이를 위하여 시스템 철골계단 공법을 선정하였다. 본 공법이 실제 적용 중인 현장에서의 데이터 수집을 기반으로 건설시뮬레이션을 적용하였으며, 이에 본 계단 공법의 1개층 1개소 설치에서부터 6개소 설치 시의 다양한 사례에 대한 시간당 생산성 및 단위비용을 예측하였다. 위의 과정을 통하여 건설시뮬레이션 기법은 현장데이터가 부족한 건설신기술의 현장적용성 평가를 위한 적용의 가능성을 제시하고 있음을 알 수 있다.

• Nuclear Engineering and Technology
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• 제45권6호
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• pp.795-802
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• 2013

For the improvement of APR1400 Diverse Protection System (DPS) design, the Advanced DPS (ADPS) has recently been developed to enhance the fault tolerance capability of the system. Major fault masking features of the ADPS compared with the APR1400 DPS are the changes to the channel configuration and reactor trip actuation equipment. To minimize the fault occurrences within the ADPS, and to mitigate the consequences of common-cause failures (CCF) within the safety I&C systems, several fault avoidance design features have been applied in the ADPS. The fault avoidance design features include the changes to the system software classification, communication methods, equipment platform, MMI equipment, etc. In addition, the fault detection, location, containment, and recovery processes have been incorporated in the ADPS design. Therefore, it is expected that the ADPS can provide an enhanced fault tolerance capability against the possible faults within the system and its input/output equipment, and the CCF of safety systems.

• 디지털산업정보학회논문지
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• 제7권2호
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• pp.101-113
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• 2011

As information and communication technology advances driving the rapid evolution of e-commerce and e-business becomes on effective marketing means for both business and institutions, the industry deals with these changes and has a profound, positive impact on production and operations management. But the construction industry falls behind compared with other industries in productivity, informationalization, automatization and globalization. Especially even though the informationalization is inevitable in any developing society, a number of construction industries can hardly cope with it properly. As the construction industry gets informationalized and advanced, the introduction of PMIS (Project Management Information System) is making progress actively for the effective construction project control and productivity improvement in construction. With the government officials' political promotion and the rising desire for construction informationalization of enterprises, many are attempting to develop integrated systems or to replace a previous system with a more advanced alternative. Construction Industry, however, has the peculiar properties that the period for the completion of construction is limited and on top of that, most of its data processing systems are seen as being an early stage in the design of management information systems. As a result, there are extremely few applications in the construction industry. In this paper, we propose the PMIS system based on new model 4CM that improves on previous models.

• 한국건축시공학회지
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• 제21권4호
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• pp.319-331
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• 2021

본 연구는 베리-허핀달 지수를 활용한 글로벌 주요 국가의 해외건설 지역별 및 공종별 다각화 및 다변화 지수를 분석하였다. 분석결과, 글로벌 설계 및 시공기업의 해외비중이 높고, 공종별 및 지역별 다각화 정도가 높은 국가들은 유럽 선진 국가들이 대부분을 차지하고 있다. 한국은 시공기업의 공종별 전문화를 통한 다각화를 추진하고 있고, 설계기업은 공종별 및 지역별로 전문화 및 일부 지역에 편중되어 있다. 향후에는 한국의 글로벌 건설기업은 선진국과 같이 해외사업 지역 다변화 및 공종 다각화로 해외경쟁력을 강화할 필요가 있다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.173-179
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• 2003

Techniques to rapidly model local spaces, using 3D range data can enable implementation of: (1) real-time obstacle avoidance for improved safety, (2) advanced automated equipment control modes, and (3) as-built data acquisition for improved quantity tracking, engineering, and project control systems. The objective of the research reported here was to introduce current rapid local modeling techniques and develop rapid local spatial modeling tools.

• Bulletin of the Korean Chemical Society
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• 제31권4호
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• pp.1055-1057
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• 2010

• 대한환경공학회지
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• 제28권10호
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• pp.1003-1006
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• 2006

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1324-1327
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• 2009

Social infrastructure is the basis of public welfare and should be recognized and managed as important assets. Bridge is one of the most important infrastructures to be managed systematically because the impact of the failure is critical. It is essential to monitor the performance of bridges in order to manage them as an asset. But current analytical methods such as predictive modeling and structural analysis are very complicated and difficult to use in practice. To apply these methods, structural and material condition data collection should be performed in each element of bridge. But it is difficult to collect these detailed data in large numbers and various kinds of bridges. Therefore, it is necessary to collect data of major measurement items and predict the life of bridges roughly with advanced information technologies. When certain measurement items reach predefined limits in the monitoring bridges, precise performance measurement will be done by detailed site measurement. This paper describes the selection of major measurement items that can represent the tendency of bridge life and introduces automated bridge data collection test-bed using wireless sensor network technology. The following will be major parts of this paper: 1) Examining the features of conventional bridge management system and data collection method 2) Mileage concept as a bridge life indicator and measuring method of the indicator 3) Test-bed of automated and real-time based bridge life indicator monitoring system using wireless sensor network