• 한국방재학회:학술대회논문집
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• 2011.02a
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• pp.215-215
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• 2011

1996년도 UN해양법협약의 발효와 각국의 배타적 경제수역(EEZ) 선포로 연안역에 대한 관심이 국제적으로 고조되고 있는 가운데 우리나라에서도 연안역 관리법(가칭)이 제정되었다. 국토해양부는 연안역 공간이용 효율성 극대화와 부존 해양자원의 치계적인 개발과 보전을 위하여 연안역 관리법을 특별법으로 제정하였으며 1998년 중에 시행령 등 하위법령을 제정해 시행키로 하였다. 이 이후로도 연안역 특별법에 대한 연구는 계속 진행중이며, 현제 연안역은 연안어업, 수산양식장, 모래채취, 염전, 해수욕장, 관광지, 해양시설, 간척, 매립지, 공업단지 등으로 많이 이용되고 있다. 그러나 연안역 안전시설에 대한 상세 설계기준 및 시공에 대해서는 자세히 다루고 있지 않다. 연안역은 관광객이 증가하면서 안전시설과 구난장비의 미비한 실정으로 인해 인적 물적 피해가 빈번히 발생 증가하고 있는 것으로 나타나고 있다. 안전사고의 다발지역을 분석해 보면 관광객으로 인하여 방파제 주변에서의 안전사고가 증가하고 있는 상황이며, 이로 인한 인명피해도 증가하고 있다. 방파제에 대한 안전사고를 막기 위하여 우선적으로 방파제에 대한 안전사고를 해결하고자 인명피해를 막는 구난시설들에 대한 간격 등의 기준을 제시하였다. 다른 지역에 비하여 연안역은 파도에 의하여 사람이 떠내려가는 것을 고려하여 구난시설의 간격을 해안이나 다른 안전시설에 비하여 더 짧게 하였으며, 구난시설이 피해자에게 빠르게 전달되고자 멀리 던진 수 있으며, 구난시설을 잡음과 동시에 숨을 쉴 수 있는 여건이 조성되도록 연구하였다. 안전사고를 효율적으로 방지하기 위하여 인간공학을 접한 안전시설을 연구를 하였다. 인간공학이란, 인간의 행동, 능력, 한계, 특성 등에 관한 정보를 발견하고, 이를 도구, 기계, 시스템, 과업, 직무, 환경의 설계에 응용함으로 인간이 생산적이고 안전하며 쾌적하고 효과적으로 이용할 수 있도록 하는 것이다. 인간공학은 인간이 사용할 수 있도록 설계하는 과정에 있어 인간의 활용성 및 편리성을 증대하는 학문으로 보며, 설계초기 단계에서부터 인간의 요소의 체계적인 고려를 필요로 하게 되었다. 이 논문은 과거에 일어났던 사고사례들을 주시하면서 앞으로의 미래에 똑같은 사고사례가 발생하지 않도록 예방하이 위하여 인간공학과 안전시설을 통하여 연안역의 안전시설의 설치기준에 도움이 되는 자료를 제공하고자 한다.

• Journal of Korean Tunnelling and Underground Space Association
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• v.18 no.4
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• pp.341-354
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• 2016

This article is to apply the tunnel support system selected after comparatively analyzing of RMR and tunnel instrumentation between the tunnel behavior characteristic predicted through geotechnical investigations and the numerical analysis at the design stage and the properties deformation occurred at the construction stage. This attempt results from the behavior characteristic of the tunnel excavation ground shown differently in accordance with the ground quality and reinforcement method. This, therefore, provide the data and results analysed the actual decision RMR-crown settlement & convergence and reduction of material property of ground as parameters. Also, it's shown that the tunnel designer is able to predict tunnel behavior characteristic when designing in bedrock areas excessively distributed faults and fractured zones.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.1
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• pp.287-294
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• 2017

BIM technology has been used in the domestic AEC field since the middle 2000s. BIM has proved its worth in cutting-edge buildings, mega-buildings and freeform buildings in particular. Many freeform buildings could not be completed due to the low level of construction technique. However, many successful cases emerged after adopting digital technology, including BIM which encouraged architects to challenge freeform designs. The modeling software that can generate the freeform shape are not usually able to build the efficient BIM data type in the AEC industry. In this study a process model of the parametric freeform construction member generation and conversion to BIM data is shown and the prototype system is demonstrated.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.3
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• pp.2255-2262
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• 2015

Recent study about near-surface is proposed to overcome non-economic of underground railway and to reduce people's complaints of ground elevated railway. In this report, precast modular structure system replacing temporary facilities is applied to ensure the construction ability and economic feasibility. To verify the performance of connection joint between permanent structural wall and upper slab, loading test is carried out. As a result of the test, wall replacing temporary structure to slab connection is possible to transfer bending moment. By 30% increase of bending resistant performance for connection joint using coupler, coupler connection joint is more advantageous to resist bending moment compared to channel connection.

• Proceedings of the Korea Concrete Institute Conference
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• 2008.11a
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• pp.185-188
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• 2008

Flat plate system has structural weakness such as punching shear. Punching shear resistance can be increase by using a lager column section and effective depth, higer concrete compressive strength, and more flexural reinforcement ratio. But using a shear reinforcement is most economical, enable, workable solution in flat plate. The slab with thickness smaller than 250mm can not perform effectively due to insufficient development length of shear reinforcement in the slab. In case of proposed reinforcements, since the shear reinforcements were installed between the top bar and the bottom bar, shear elements generated slip failure before they reached yield. strength. effect of anchorage strength were effective anchorage length, concrete strength, diameter of shear element and anchorage detail. considering effect of slab thickness and concrete strength, formula of K factor propose in thin flat plate slab. by considering effect of anchorage length and concrete strength, strength of shear reinforcement will be computed correctly in thin flat plate slab.

• Journal of the Korean GEO-environmental Society
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• v.7 no.5
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• pp.41-48
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• 2006

Crib wall is one of the segmental grid retaining walls using headers and stretchers to establish the framework of the wall. In this method, grids formed by the intersection of headers and stretchers are generally filled with the gravel to maintain the weight of the wall. Therefore, the construction can be carried out with higher speed and much economically when compared with the concrete retaining wall. Furthermore, it has high drain capacity, and environmentally friendly aspects also have been pointed out because the possibility of the planting at the front of the wall. However, in the crib wall method, the relative movement between the individual headers and stretchers was generally recognized, and stress redistribution in the gravel filling was also observed when subjected to the external loading and self-weight of filling. Therefore, it has been thought that the distribution of the earth pressure in the crib wall system differ from that of the concrete retaining wall. In this study, the surcharge tests using the scaled model crib wall was carried out to observe the distribution of the earth pressure in the segmental grid retaining wall. The earth pressure was measured in the six specified height of wall, and the distribution of the pressure was analyzed. Furthermore, the earth pressure by computation or by the test using the concrete retaining wall was also considered to make comparison.

• KIEAE Journal
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• v.5 no.2
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• pp.11-18
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• 2005

The Purpose of this study is development and analysis of Effluence Characteristic of the Rainfall in the IRMA Green Roof System(developed in KICT) Plus 50 program is an internal research project at KICT(Korean Institute of Construction Technology) which has it as an object ; to lengthen the building's life 50-year or more and reduce energy conception 50% than present. Green roof system is one of the most important theme in the Plus 50 program. Generally, a Green Roof System has a positive effect on the thermal conductivity in winter, the micro cooling effect on building and city by evaporation in summer, the flood-control effect by runoff-reduction or the treated rainwater-quality of green roof system and so on. However, inspection of the physical effect of green roof system does not consider in Korea. Above all, long-term monitoring and a whole observation of green roof system is needed to probate the effect. So a new experimental method could be tried in this research, which is never attempted in Korea. The measurement by a bucket with a great volume, 1L, gives a new dimension of measuring green roof effect to measure the permanent running flood from a wide roof. This offers a reasonable result on a long-term measuring of a running water. Additionally, the thermal behavior of the IRMA(Insulated Roof Membrane Assembly), known in the western europe as a reasonable solution at green roof system by economical benefits and easy construction, would be experimented.

• Journal of the Korean Geotechnical Society
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• v.32 no.8
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• pp.47-59
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• 2016

Rocking behavior of shallow foundation reduces the superstructure load during earthquake. However, because of deficiency of understanding of rocking mechanism and soil permanent deformation, it has not been applied to real construction. In this study, slow cyclic tests were conducted for embedded shallow foundations with various slenderness ratio via centrifuge tests. From the variation of earth pressure 'soil rounding surface' phenomenon which makes maximum overturning moment equal to ultimate moment capacity was observed. Rocking and sliding behavior mechanism was evaluated. Also, nonlinear behavior and energy dissipation increase as rotation angle increases. And ultimate moment capacity of embedded foundation is larger than that of surface foundation. Finally, adequate ultimate moment capacity can be suggested for seismic design through this study.

• Korean Journal of Construction Engineering and Management
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• v.12 no.5
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• pp.55-62
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• 2011

Recently, construction work has diversified and become larger. So, a systematic measurement and management measures are required. In this study, USN technology which is one of the most important network technologies was selected. Based on elements derived from comparison of each element of standard was calculated according to the importance of the elements. The importance of the decision to support the proposed model is explained by integrating the importance of each criteria and decision-support model by considering the situation and creating a matrix of considerations for the construction of earthwork. The results of this study show that USN technology in the context of judging criteria can be selected for the earthwork.

• Korean Journal of Construction Engineering and Management
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• v.12 no.6
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• pp.31-41
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• 2011

Since the cases of time extension have continuously transpired in the public construction project, the potential of economical loss and claims is increasing because the concerned parties such as an owner or a contractor have not properly performed their own responsibility for time extension. One of the main reasons is that the present planning and scheduling do not support the method to apportion the proper responsibility to the right party. This problem has repeatedly led to time extension and made it difficult for the concerned parties to perform the responsibility for time extension. In order to overcome this problem, a framework of delay administration is required as the method to apportion the proper responsibility to the right party. To solve this problem, this paper aimed to develop the conceptual model and prototype system as the practical method to administrate delay causation. Furthermore, the verification result for the reliability and applicability throughout the case studies on real construction projects shows that the conceptual model and prototype system developed would help efficiently to administrate the delay causation.