• 한국조경학회지
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• 제27권4호
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• pp.94-100
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• 1999

Stone is one of the oldest material for construction and artistic works. This study investigates the current use of stones in landscape constructional works, and the design criteria to advance the arts of natural stone arrangements. Thirty four experts and thirty two others were surveyed with various photos of simulated construction works of natural stone arrangements fond improved design guidelines. Major findings are as follows: -The payment for the use of stones ranges approximately 5 to 10% of total cost of landscape constructional works. More stones may be used when better retailing system is introduced, working skill is standardized, and more of the substitute natural stones made of blasted rocks are provided and the cost goes down. -Preferences showed little difference for the mixed use of different sizes, colors and shapes of stones, and for the use of similar ones, in the construction of walls. This does not match with the current design guidelines. -Arranging three stones, which symbolizes heaven, earth, and human being, was the most preferred. As the supply of natural stones is limited and more substitute stones are used, it its needed to establish guidelines for the production of substitute stones. -Grasses are much more preferred between pavement stones than mortars. -In current practices, top of piled up natural stones is usually arranged level. More freely curved top lines are preferred to straight line.

• 건설관리
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• 제6권2호
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• pp.23-27
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• 2005

• 수도
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• 제23권3호통권78호
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• pp.21-38
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• 1996

• 건축사
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• 통권610호
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• pp.60-65
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• 2020

• 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.58-65
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• 2011

Construction Productivity is one of the most important elements in construction management. It is used in construction process scheduling and cost management, which are significant sector in construction management. It is important to make appropriate schedule and monitor how works are done within schedule. But construction project contains uncertainty and inexactitude, modifying construction schedule is being an issue to manage construction works well. Even though prediction and monitoring of productivity can be principal activity, it is hard to predict productivity with manager's experience and a standard of estimate. A large number of factors influencing productivity, such as drawing, construction method, weather, labor, material, equipment, etc. But current calculation of productivity depends on empirical probability, not consider difference of each influencing factor. In this research, the aim is to present a productivity predicting regression model of form work, which includes effectiveness of influences factors. 5 variables existed inside form work are selected by interview and site research based on literature review of existed various productivity influencing factors. The effectiveness and correlation of productivity influencing factors are analyzed by statistical approach, and it is used to make productivity regression model. The finding of this research will improves monitoring and controlling of project schedule in construction phase.

• 한국의류산업학회지
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• 제10권6호
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• pp.848-856
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• 2008

In today's world where a preference for prestigious brands prevails, it's essential to have creative design conceptions rather than try simple mimicking or following in order to be recognized for creative and objective design works. In that sense, the development of clothes design using construction lines offers a great approach towards the ideas of reinterpreting and creating new designs since it creates new forms by understanding lines as signs of conception and transforming them. That approach allows a designer to improve his or her imagination, creativity and expression in a freer and richer manner, think of many original ideas through diverse changing processes, and develop the skill to visualize the ideas by incorporating geometric forms of abstract lines into clothes. When approaching the conception of clothes design from the standpoint of construction lines, you need to adopt more specific and systematic design methods instead of vague imagination to introduce simple facts or theories to a new design process. That's one of the ways you can approach clothes design easily and enhance your conception skills. The process of clothes design according to the conception of construction lines is composed of the following stages; the preparation stage involves an understanding of the principles and the entire process of clothes design conception based on construction lines; the idea stage requires a designer to make free alterations of the given basic construction lines by moving and replacing the lines and sides in diverse ways; in the creation and expression stage, the designer uses the newly reconstructed construction lines to create clothes design; and in the evaluation stage, the designer makes a presentation of his or her subjective design works and has his or her works assessed and tested in an objective fashion. In today's modern society that demands new and original globalized design, the results of the study will help to invigorate the development of new fashion design in a more systematic and practical manner by suggesting a feasible and gradual educational program for the development of design based on the technique of construction lines.

• 대한토목학회논문집
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• 제37권1호
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• pp.143-151
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• 2017

최근 기후변화에 대응하기 위해 새롭게 체결된 파리협정에 따라 우리나라는 2030년까지 기준대비 37%의 탄소배출량 감축목표를 제시하였다. 이를 위해 28개 산업분류에서 3번째로 많은 이산화탄소를 배출하는 건설산업에서 보다 적극적인 연구가 필요하다. 본 연구에서는 기존의 완공된 국도건설사례들 중 터널과 교량을 제외한 도로분야만을 이용하여 전과정평가(LCA)를 실시하여 환경부하량을 산출 하였다. 산출된 환경부 하량을 기반으로 대공종의 대표공종을 선정한 결과 토공, 배수공, 포장공이 전체의 84%를 차지하였으며, 세부공종별 대표공종을 선정하여 각 세부공종별 환경부하량 특성을 분석하였다. 국도건설공사 시 환경부하량 공종별 배출특성을 이용한다면 환경부하량을 기반으로 하는 친환경적인 국도건설공사 의사결정에 도움이 될 것이다.

• 한국건설관리학회논문집
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• 제9권3호
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• pp.136-145
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• 2008

현행 규정에 따라 기성을 지급하였어도 공공공사 발주자가 공사대금 이외에 금융비용이라는 추가비용을 부담해야 되는 경우가 발생되고 있다. 본 연구는 공공공사 건설과정에서 발생하는 금융비용을 파악하기 위하여 실제 공공공사 기성지급사례를 토대로 다음과 같은 연구결과를 도출하였다. 첫째 금융비용 발생원인을 분석하였고, 둘째 전체 금융비용 규모를 파악하고 이 중 발주자에게 미치는 영향을 파악하였으며, 셋째 금융비용이 발생시점에 따라 전체 금융비용에 미치는 영향을 비교 분석하였다. 본 연구에서 2건의 공공공사 금융비용 사례 분석결과 금융비용을 최소화하기 위해서는 입찰설명서 등 공사 착수 전에 공정과 기성관리 세부기준을 설정해야 한다. 또한 금융비용은 발생시점에 비례하여 발생하므로 공사초기의 공정관리에 집중해야 하는 것으로 분석되었다. 공공기관 건설공사 기성이 매년 2조 3천억 이상 발생되고 있지만 건설과정에서 기성지급 시 발생되는 금융비용이 얼마나 되는지 산출된 연구결과가 없어 그 규모를 인식하지 못하였다. 따라서 본 연구결과를 통하여 공공공사 시 기성지급으로 발생되는 금융비용 규모를 인식하고 관련규정의 보완과 대안을 도출해 내는 데 연구의 목적이 있다.

• 한국농공학회지
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• 제24권2호
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• pp.49-55
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• 1982

The purpose of this study is to classify the factors influenced on the damages of head works suffered from the storm flood occurred on July 22 1980 in both Musim and Bochong rivers and to find out an integral counter measures against the causes influenced on the disaster of head works in the engineering aspect of planning, design, construction and maintenance. In this survey, number of samples was taken 25 head Works, and the counter measures against the causes of their disasters summarized was as follows, 1. In the aspect of planning a. As the flood water level after the establishment of head works is more increased than the level before setting of head works owing to having more gentle slope of river bed between the head works than nature slope of river bed. Number of head works should be reduced for the appropriate annexation of them b. In the place where head works is established on the curved point of levee, the destruction of levee becomes severe by the strong deflective current. Therefore the setting of head works on the curved point should be kept off as long as possible and in case of unavoidable circumstances the construction method such as reinforced concrete wall or stone wall filed with concrete and anchored bank revetments should be considered. 2. In the aspect of design a. As scoring phenomena at up stream is serious around the weir Where the concentration of strong current is present in such a place, up stream apron having impermeability should be designed to resist and prevent scoring. b. As the length of apron and protected bed is too short to prevent scoring as down stream bed, the design length should be taken somewhat more than the calculated value, but in the case the calculated length becomes too long to be profitable, a device of water cushion should be considered. c. The structure of protected river bed should be improved to make stone mesh bags fixed to apron and to have vinyl mattress laid on river bed together with the improvement for increasing the stability of stone mesh bags and preventing the sucked sand from the river bed. d. As the shortage of cut-off length, especialy in case of the cutoffs conneting both shore sides of river makes the cause of destruction of embankment and weir body, the culculation of cut-off length should be taken enough length based on seepage length. 3. In the aspect of design and constructions a. The overturing destruction of weir by piping action was based on the jet water through cracks at the construction and expansion joints. therefore the expansion joint should be designed and constructed with the insertion of water proof plate and asphalt filling, and the construction joint, with concaved shape structure and steel reinforcement. b. As the wrong design and construction of the weep holes on apron will cause water piping and weir destruction, the design and construction of filter based on the rule of filter should be kept for weep holes. c. The wrong design and construction of bank revetment caused the severe destruction of levee and weir body resulting from scoring and impulse by strong current and formation of water route behind the revetment. Therefore bank revetment should be designod and constructed with stone wall filled with concrete and anchored, or reinforced concrete wall to prevent the formation of water flow route behind the wall and to resist against the scoring and impulse of strong stream. 4. In the aspect of maintenance When the damaged parts occurred at head works the authorities and farmers concerned should find and mend them as soon as possible with mutual cooperation, and on the other hand public citizen should be guided for good use of public property.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.837-842
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• 2007

Since construction materials have been towards larger and heavier, the rate of accident associated with installation works of heavy construction materials is increasing. Installation works of heavy construction materials lead to frequent accidents, increasing the WMSDs(Work-Related Musculo-Skeletal Disorders) in construction site. In case of installation work of heavy glass ceiling, the rate of accidents such as falling and collision is increasing as well. This paper describes a ergonomic design of working platform(deck) in a glass ceiling installation robot. As well as, a design of working process is considered to accomplish an efficient installation work. As a result of the design, an installation work of heavy glass ceiling by the robot will be expected safety assurance and retrenchment of the construction cost and period.