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김기동,고만기,김달성,한기장,Kim, Kee Dong,Ko, Man Gi,Kim, Dal Sung,Han, Ki Jang 대한토목학회 2015 대한토목학회논문집 Vol.35 No.1
본 연구는 낙석방지울타리의 성능평가에 관한 두 개의 동반논문 중에서 두 번째 논문이다. 동반논문에서는 낙석방지울타리의 성능평가에 필요한 성능평가기준을 제시하였고 본 논문에서는 동반논문에 제시된 성능평가기준을 이용하여 국내 낙석방지울타리의 성능평가를 수행하였다. 고속도로용 낙석방지울타리는 50kJ의 낙석이 발생하는 장소에서 적절하게 낙석을 방어하고 50kJ 정도의 낙석이 충돌한 직후에도 차량 통행을 방해하지 않을 것으로 평가되었다. 그러나 유럽지침의 수준으로 50kJ의 낙석에너지를 항상 소산시키기 위해서는 아래에서 8번째 와이어로프까지 와이어로프의 간격을 200mm로 조정하고 간격유지대를 연결하여야 한다고 판단되었다. 그리고 간격유지대가 없는 국도용 낙석방지울타리는 상당히 작은 낙석충돌에너지에 대해서도 낙석의 관통가능성이 높기 때문에 고속도로용과 같이 간격유지대를 설치할 필요가 있다고 파악되었다. This is the second of two companion papers that describe the performance assessment for flexible rockfall protection systems. Described in a companion paper is the criteria to assess the performance of flexible rockfall protection systems. In this study the performance assessment of domestic rockfall protection fences was implemented using the criteria suggested in the companion paper. It was investigated that the rockfall protection fences for express highways performed well to resist the rockfall energy of 50kJ and the deformed rockfall protection fences right after impacting would not obstruct the vehicle traffic. However, to dissipate the rockfall energy of 50kJ with the level of European standards constantly, the spacing of wireropes was adjusted to be 200mm up to the 8th wirerope from the bottom and spacing-maintainers should be extended to the 8th wirerope. It was figured out that the rockfall protection fences for general highways were required to install spacing-maintainers as those for express highways because they, which did not have spacing-maintenance members, were very prone to the penetration of rockfall even for the very small rockfall impact energies.
농업구조물의 최적설계안 선정, 안전진단 및 개보수를 위한 시스템 개발
김종옥 ( Kim Jong Ok ),윤광식 ( Yoon Kwang Sik ),고만기 ( Ko Man Gi ),김기동 ( Kim Ki Dong ),최진용 ( Choi Jin Yong ),김한중 ( Kim Han Joong ) 한국농공학회 1998 한국농공학회 학술대회초록집 Vol.1998 No.-
A study was conducted to develope a system for optimum design, safe appraisal and repair works on agricultural structures. Locations of structures were identified using GPS and imbedded into GIS data base with related information. A graphical program assisting ensile field investigation of typical agricultural structural problems such as fractures and cracks of members was developed. Typical rehabilitation methods were coded for data base development. Optimum design programs for several structures were developed and CAD program which automatically draw draft was also developed.
관계형 데이터베이스를 이용한 농업구조물의 안전진단 지원시스템의 개발
김한중 ( Kim Han Joong ),이정재 ( Lee Jeong Jae ),김종옥 ( Kim Jong Ok ),고만기 ( Ko Man Ki ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-
Most of the irrigation structures are shortage of feasible facility management. The surveyed data to irrigation structures related to maintenance record were built and interface program between GIS and database were developed. It was conducted to develope a system for safe appraisal and repair works on agricultural irrigation structures. The system assisting onsite field investigation and determining the typical rehabilitation method of typical agricultural structural problems such as fractures and cracks of members was developed.