• 한국건설관리학회논문집
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• 제13권1호
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• pp.129-139
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• 2012

도심지 건설 프로젝트에서 적정한 기초공법을 선정하는 것은 매우 중요한 의사결정 중 하나이다. 그러나 아직도 적지 않은 프로젝트에서 단순히 과거의 경험이나 숙련된 기술자의 의견에 기초하여 기초공법을 선정하고 있다. 본 연구에서는 기초공법결정과정을 보다 선진화하기 위해 계층분석법(Analytic Hierarchy Process; AHP)과 선호도함수(Preference Function; PF)를 이용하여 적정 기초공법을 선정하는 의사결정지원시스템을 제안한다. 제안된 시스템에서 계층분석법은 평가기준 간의 상대적 중요도를 반영하기 위해, 또한 선호도함수는 의사결정자의 기초공법 적합도에 대한 선호도를 고려하기 위해 이용된다. 제안된 의사결정지원시스템을 기 수행된 프로젝트 사례에 적용해본 결과, 시스템이 도출한 기초공법과 전문가들이 현장에 대한 면밀한 검토 후 선정한 기초공법이 동일함을 알 수 있었다. 제안된 의사결정지원시스템은 건설현장에서 최적의 기초공법을 선정하기 위한 의사결정 시 매우 유용한 도구로 활용될 수 있을 것으로 기대된다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 말뚝기초위원회 워크샵
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• pp.35-52
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• 1999

This paper addresses on new codes of practice, limit state design; load resistance factored design and Eurocode 7, which have recently been adopted by foundation engineers in North America and European Communities. A brief description of the limit state design concepts and some introductions to Australia and Sweden national code for pile foundation are made on behalf of pile capacity determination. Also, simple closed form solution for rational resistance factor when resistance is log-normally distributed, has been derived for pile foundation.

• Geomechanics and Engineering
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• 제22권4호
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• pp.305-318
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• 2020

Stone columns are widely used to treat soft clay ground. Optimizing the design of stone columns based on cost-effectiveness is always an attractive subject in the practice of ground treatment. In this paper, the design of stone columns is optimized using the concept of robust geotechnical design. Standard deviation of failure probability, which is a system response of concern of the stone column-reinforced foundation, is used as a measure of the design robustness due to the uncertainty in the coefficient of variation (COV) of the noise factors in practice. The failure probability of a stone column-reinforced foundation can be readily determined using Monte Carlo simulation (MCS) based on the settlements of the stone column-reinforced foundation, which are evaluated by a deterministic method. A framework based on the concept of robust geotechnical design is proposed for determining the most preferred design of stone columns considering multiple objectives including safety, cost and design robustness. This framework is illustrated with an example, a stone column-reinforced foundation under embankment loading. Based on the outcome of this study, the most preferred design of stone columns is obtained.

• 경영과정보연구
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• 제12권
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• pp.117-136
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• 2003

Korea has suffered from unemployment of workers discharged from the companies and graduates, and matriarchs since 1997's IMF. Since then Korea has fallen into economic depression, therefore the graduates have not employed for several years and lots of workers have been discharged from their positions. SOHO(Small Office Home Office) is able to be considered as the alternative employing measure of the unemployers. SOHO foundation makes a great contribution to job creation and the social welfare throughout the country. Since its foundation needs small-scale facilities and investment, the discharged and unemployed can found SOHO easily and will do good business. Korea government should practice policies in order to promote SOHO foundation as follows. First, Korean government should enlarge various support measures for SOHO foundation, namely offering of useful information and promoting of SOHO foundation, etc. Second, she should carry out the SOHO foundation education for juveniles. In order to do this project, colleges and universities adopt the SOHO foundation lesson in the education course. Third, government should enlarge various government subsidies of SOHO foundation for the benefit of the discharged and unemployed.

• Structural Engineering and Mechanics
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• 제17권3_4호
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• pp.281-290
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• 2004

A review of current procedures being used in engineering practice to analyze the response of structure/foundation systems subjected separately to different types of dynamic excitation, such as earthquake, sea-wave action, wind, or moving wheel loads, is presented. Separate formulations are given for analyzing systems in the time and frequency domains. Both deterministic and stochastic forms of excitation are treated. A distinction is made between demand and capacity analyses.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제25권1호
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• pp.6-13
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• 2014

Objectives : The aim of this study is to assess the career paths and practice patterns of child and adolescent psychiatrists in South Korea. Methods : A survey on demographic data, work environment, opinion on fellowship training program, and current practice patterns was conducted in 76/223 (34.0%) of all child and adolescent psychiatrists (N=223) were from 1980 to 2008. The survey data from the responders were analyzed. Results : More than half of those surveyed were women. The mean age of survey participants was 40.8 years; most were married, and lived in the Seoul National Capital Area. In general, the responders were very satisfied with their work. They worked in private practice, public sector, group practice, and as consultants. Up to 87% of the patients treated were children and adolescents. The most common treatment modalities were medication and parent psychoeducation. Social skills training and play therapy were applied mainly for children aged 4 to 12 years old. Cognitive behavioral therapy and counseling were preferred in adolescents. Conclusion : The current study used a database approach in order to define current practice patterns. These data may be helpful in consideration of future training programs, workforce issues in child and adolescent psychiatry in South Korea, and also in collaboration with other mental health providers.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 춘계학술대회
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• pp.391-394
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• 2007

The foundation insert is a tubular steel section which is embedded into the concrete of the foundation. The tower base section of the wind turbine is mounted on it. It has a top flange (L type) protruding far enough above the concrete to allow bolts to be inserted from underneath. The load is transmitted to the concrete at the base of the section through a T shaped flange. It has many holes for the reinforcements and the cables. The reinforcements of the concrete foundation run through the insert via a series of holes to bind the inner section to the outer section. Holes are provided for the power and communications cabling. The design follows normal European wind turbine practice, based on GL 2003 and Eurocode regulations.

• Structural Engineering and Mechanics
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• 제27권2호
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• pp.199-222
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• 2007

Composite laminated structures supported on elastic foundations are being increasingly used in a great variety of engineering applications. Composites exhibit larger dispersion in their material properties compared to the conventional materials due to large number of parameters associated with their manufacturing and fabrication processes. And also the dispersion in elastic foundation stiffness parameter is inherent due to inaccurate modeling and determination of elastic foundation properties in practice. For a better modeling of the material properties and foundation, these are treated as random variables. This paper deals with effects of randomness in material properties and foundation stiffness parameters on the free vibration response of laminated composite plate resting on an elastic foundation. A $C^0$ finite element method has been used for arriving at an eigen value problem. Higher order shear deformation theory has been used to model the displacement field. A mean centered first order perturbation technique has been employed to handle randomness in system properties for obtaining the stochastic characteristic of frequency response. It is observed that small amount of variations in random material properties and foundation stiffness parameters significantly affect the free vibration response of the laminated composite plate. The results have been compared with those available in the literature and an independent Monte Carlo simulation.

• 한국도서관정보학회지
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• 제36권1호
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• pp.329-351
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• 2005

이 연구의 목적은 우리의 근대 도서관사에 있어 자료조직에 대한 지적 토대가 어떻게 형성$\cdot$발전되어 왔으며, 이 과정에서 우리는 그동안 우리 고유의 지식문화와 정보행태를 대변하는 '토착적' 가치를 지닌 자료조직이론을 정립하기 위해 얼마나 노력해 왔는지를 역사적 관점에서 엄격하게 성찰해 보는데 있다. 이를 위해, 지난 반세기동안 도서관계 혹은 문헌정보학계에서 생산된 자료조직 연구물들을 수집하여 이들이 어떠한 토대와 근거를 바탕으로 생산되었으며. 어떠한 내용으로 이루어졌는지를 정성적 관점에서 살펴보았다.

• 국제초고층학회논문집
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• 제4권4호
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• pp.291-310
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• 2015

It is common for tall buildings in Korea to have a ground response that is highly sensitive to the behavior of the structure. Therefore, the geology of the ground needs to be carefully assessed and considered in the design process to accurately predict the performance of the foundation system. This paper sets out a systematic design approach and ground investigation methodology for the soil conditions frequently encountered in Korea. Various foundation design methods are introduced along with several case studies conducted in Korea.