• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.498-498
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• 2022

통합물관리를 위한 농촌용수 이 치수 관련 거버넌스를 체계화하고 기반을 마련하고자 지역 내 거버넌스 및 통합물관리에 대한 사례조사, 의견 수렴, 토론 및 소통 등의 과정을 거쳐 사회적으로 수용성이 높은 '농촌용수 통합물관리 거버넌스의 운영 방안' 모델 개발을 중심으로 수행하였다. 우리나라의 물관련 거버넌스는 해당 유역과 단체의 물문제를 중심으로 활동하고 있으며, 국가적 차원의 통합물관리 체계에 발맞춰 나가기 위해서는 농업인 거버넌스 활성화가 필요하다. 또한 농업인 거버넌스는 농업용수 등 물관련 문제 해결에 적극 참여하여 협력과 소통을 기반으로 농업용수부문의 주도권을 확보하여야 할 것이다. 지역 물관리 현황 분석 및 현안 과제를 도출하기 위해 최근 농업용수와 관련한 민감한 이슈가 있는 금강유역 내 위치한 지구를 시범지구로 선정하였다. 논 시범지구는 현북 양수장으로 선정하였으며, 비교지구는 정암 양수장으로 선정하였다. 시범지구인 현북 양수장은 충남 부여군에 위치하고 있어 농업인 단체의 지역본부나 지회가 참여 할 수 있도록 하였다. 또한 통합물관리를 위한 현장의 주체인 수감원과 시설관리기관인 한국농어촌공사 부여지사가 참여하도록 하였다. 농촌용수 통합물관리 거버넌스는 협의의 거버넌스와 광의의 거버넌스로 구분하였다. 협의의 거버넌스 구성은 해당지구의 농업인, 기초지방자치단체, 한국농어촌공사 지사 등으로 구성한다. 광의의 거버넌스 구성은 해당지구의 광역 및 기초지방자치단체, 한국농어촌공사 지사, 지역의 농업인 사회단체 등 10개 이내의 기관과 단체로 구성한다. 거버넌스의 주된 활동은 해당 지역·지구의 농업용수 관리 개선 및 농업인의 적극적 참여를 위한 광역지방자치단체, 기초지방자치단체 및 한국농어촌공사와의 소통과 협력, 갈등을 조정한다. 이와 더불어 농업용수관리 개선을 위한 정책개발, 기존 제도의 개선, 효율적인 물관리를 위한 실천사업 관련된 다양한 연구조사사업 수행, 지역 농업인 영농 활동의 질 향상을 위한 욕구 조사, 중복규제 등 현안 사안에 대한 법 및 정책 개선, 대안 발굴 등 정책과 제도운영 및 개선방안 연구·조사 사업에 전력투구하는 조직체로서 기능을 수행한다. 따라서, 농업인들이 자발적으로 국가적 차원에서 제시하는 농업용수 관련 정책을 따르기 위해 농촌용수 통합물관리 거버넌스를 통한 정책 제안이 반드시 필요하다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.1B
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• pp.79-88
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• 2006

In this study, a methodology is developed for flood runoff analysis considering the interaction between interior floodplain and channel. Riparian lowland is modeled as storage areas by HEC-RAS and is connected with main channel through gravity drainage structure and pumping stations. As a result, we were able to compute the difference between runoff into the interior floodplain and delayed runoff to main channel from interior floodplain. This allowed us to compute the storage change in the interior floodplain and corresponding inundation areas. Furthermore, the levee is modeled as a lateral structure and the flood from the main channel to interior floodplain is modeled by installing a weir on top of it. In addition, levee breach is also modeled so that flooding from main channel to interior floodplain can be considered. Computed flooding depth in the storage areas are compared with elevation to identify the inundated areas and flood maps can then be produced for a desired time or for the extent of flooding given a flooding depth. Output from this modeling effort can provide many useful information for flood planning such as flow depth in main channel, flooding depth and area in interior floodplain. The method was applied to Sapgyo river basin and the comparison with observed flood events showed that it can reproduce the observation fairly well, hence proving the utility of the method.

• Spatial Information Research
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• v.4 no.1
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• pp.21-42
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• 1996

The Anyang-cheon is one of the Han River tributaries in Seoul Metropolitan area. It is 35.1km long, has a basin area of 287km2 and touches seven cities of Kyounggi Province and part of Seoul. The purpose of this study were 1) to reconstruct the ancient stream network and to investigate the change of landuse in Anyang-cheon watershed between 1957 and 1991,2) to measure the change of the hydrologic ¬acteristics with urbanization, 3) to suggest the institutional solutions to reduce natural hazard as the area has urbanizedThe main results are as follows: 1.Anyang-cheon river basin has experienced the rapid urbanization and industrialization since 1957. Anyang-cheon stream network was oversimplified in the watershed. The total stream length decreased atributaries in the upper part of river basin have eliminated or buried undergrolmd in pipes. 2.Urbanization impacted to all of the area of Anyang-cht'On watershed. Urbanization in Anyang-cheon watershed corresponds to the large portion of flat area, especially flood - prone zone of river side, and the small portion of Greenbelt to constrain urban expantion in cities. 3.The urbanization of Anyang-cheon watershed produces fundamental changes in watershed hydrology. As infiltration is reduced by the creation of extensive pavement, concrete surface, and sewer pipe, runoff moves more quickly from upland to stream. As a result, runoff from the watershed is flashier, increasing flood hazardAs urban area continue to grow we will need to better utilize stream by protecting and enhancing stream systems.otecting and enhancing stream systems.tems.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.5A
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• pp.565-575
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• 2009

In recent years, there have been numerous explosion-related accidents due to military and terrorist activities. Such incidents caused not only damages to structures but also human casualties, especially in urban areas. To protect structures and save human lives against explosion accidents, better understanding of the explosion effect on structures is needed. In an explosion, the blast load is applied to concrete structures as an impulsive load of extremely short duration with very high pressure and heat. Generally, concrete is known to have a relatively high blast resistance compared to other construction materials. However, normal strength concrete structures require higher strength to improve their resistance against impact and blast loads. Therefore, a new material with high-energy absorption capacity and high resistance to damage is needed for blast resistance design. Recently, Ultra High Strength Concrete(UHSC) and Reactive Powder Concrete(RPC) have been actively developed to significantly improve concrete strength. UHSC and RPC, can improve concrete strength, reduce member size and weight, and improve workability. High strength concrete are used to improve earthquake resistance and increase height and bridge span. Also, UHSC and RPC, can be implemented for blast resistance design of infrastructure susceptible to terror or impact such as 9.11 terror attack. Therefore, in this study, the blast tests are performed to investigate the behavior of UHSC and RPC slabs under blast loading. Blast wave characteristics including incident and reflected pressures as well as maximum and residual displacements and strains in steel and concrete surface are measured. Also, blast damages and failure modes were recorded for each specimen. From these tests, UHSC and RPC have shown to better blast explosions resistance compare to normal strength concrete.