• 한국도서관정보학회지
• /
• 제48권1호
• /
• pp.345-371
• /
• 2017

전통적으로 건설 산업 분야는 패싯 분석 기법을 활용한 대표적인 영역 중의 하나이다. 국제적으로 분류체계인 "건설정보통합분류법(Uniclass)"이나 시소러스인 "건설산업시소러스(Construction Industry Thesaurus, CIT)" 등에서 패싯 분석 기법을 적용하고 있다. 국내의 경우, 분류체계인 "건설정보분류체계" 등에 활용되고 있으나 시소러스에서의 패싯 분석 기법의 연구나 구축 사례는 찾아보기 힘들다. 본 연구의 목적은 패싯 분석 기법을 활용한 건설 분야의 정보검색을 위한 시소러스의 구축을 상정하여 패싯 유형을 확립하고, 패싯 분석 기법에 따른 건설 분야 시소러스의 구축 방안을 제시하는데에 있다. 기본 패싯으로 최상위 10개의 패싯(주체 및 수동체, 인공물, 추상물, 재료, 부품/구성요소, 공종, 속성, 매체, 프로세스, 공간, 시간)과 하위 20개의 패싯을 설립하고, 국제표준(ISO 25964-1)이 제시하고 있는 시소러스 구축 절차에 따른 구축 방안을 제시하였다. 본 연구의 결과는 패싯 기반 시소러스의 적용뿐만 아니라 향후 택사노미나 온톨로지 등에서의 재활용 및 건설 분야의 분류체계 등과의 상호운용성에 활용이 가능할 것으로 기대하고 있다.

• 대한토목학회논문집
• /
• 제37권1호
• /
• pp.153-166
• /
• 2017

최근 건설공사는 개선된 건설장비의 투입과 기계화 시공에 적합한 시공법을 적용하여 경제적인 시공을 추구하고 있다. 하지만 많은 경우에 공사관리자의 직관과 전통적인 방식으로 건설장비를 운영함으로써 생산성 및 경제적 측면에서 효과를 증대시키지 못하고 있는 실정이다. 최근의 각종 건설장비의 성능은 급속도로 발전되고 있지만 기계화 시공을 위한 관리방법 및 운영방법이 뒷받침되지 않는다면 기계화 시공으로 인한 효과를 최대한으로 누리지 못하게 된다. 전문가 설문에 따르면 전통적인 건설장비 운영방법의 문제점은 공종에 적합하지 못한 건설장비의 투입과, 실시간 작업상황을 반영하지 못하는 건설장비의 조합, 건설장비 운전자의 숙련도 저하와, 필요한 작업정보의 실시간 이용불가로 나타났다. 본 연구에서는 이러한 문제점을 해결하기 위한 건설장비 운영시스템을 제안하고자 한다. 건설장비 운영시스템은 현장상황을 고려하여 필요할 때마다 건설장비 할당계획을 수립하고 이러한 정보를 실시간으로 건설장비 운전자에게 전달함에 따라 건설장비군의 작업시간율을 최대화할 수 있도록 하는 방법을 제공한다. 궁극적으로 건설장비 운영시스템의 현장적용을 통하여 작업생산성 향상과 연료사용량을 감소함으로써 탄소배출도 저감할 수 있을 것이다.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2004년도 춘계학술발표회
• /
• pp.517-524
• /
• 2004

The leading cause of bridge failures is scouring bed material from around bridge foundations. Many advanced countries such as U.S.A., U.K., the Netherlands and New Zealand have developed and revised their own bridge scour manuals fit for their field conditions. In Korea, researches for reducing bridge failures during floods have concentrated on analysis, laboratory test and countermeasure of bridge scour during the last ten years. however no comprehensive manual for evaluating bridge scour and for identifying the conditions of bridge foundations has been provided yet. In this study, a new bridge scour manual is developed for the accurate evaluation of bridge scour, which reflects domestic field conditions with various streambed materials. The SRICOS method and the Erodibility Index Method are suggested for fine-grained soils and weathered rocks, respectively. In addition, bridge scour analysis algorithms are developed for field engineers to estimate bridge scour depth and to evaluate the susceptibility of bridge scour with ease.

• 한국지구물리탐사학회:학술대회논문집
• /
• 한국지구물리탐사학회 2003년도 Proceedings of the international symposium on the fusion technology
• /
• pp.176-183
• /
• 2003

This paper presents a neural network based approach to disseminating information relating to experimental and field observations in engineering. Although the methodology is generic and can be applied to many areas of engineering science, attention is focussed here solely on geotechnical engineering applications. Field data relating to the settlement of foundations presented by Burland and Burbidge (1985) which led to their well known equation for calculation of settlement, now included in most text books, is re-visited. A part of the data, chosen randomly, is used to train an Artificial Neural Network (ANN), which relates foundation settlement to various causes as identified by the authors. Predictions are made for situations for which data were not used in training. These indicate sufficient accuracy when compared to the original field data. Accuracy of predictions is further improved when all the data are included in the training set. The finally trained ANN is shown to represent these data more accurately than the Burland and Burbidge equation. Based on the above heuristic example, an ANN is presented as an alternative to developing equations and design rules in geotechnical engineering practice. Significant advantages are shown to arise by using this methodology. Ease of updating the ANN, as and when additional data becomes available, being the most important one. Loss of transparency, however, seems to be the main disadvantage.

• Journal of Communications and Networks
• /
• 제16권5호
• /
• pp.479-484
• /
• 2014

In this paper, we consider the construction of cyclic and quasi-cyclic structured q-ary low-density parity-check (LDPC) codes over a designated small field. The construction is performed with a pre-defined sliding-window, which actually executes the regular mapping from original field to the targeted field under certain parameters. Compared to the original codes, the new constructed codes can provide better flexibility in choice of code rate, code length and size of field. The constructed codes over small fields with code length from tenths to hundreds perform well with q-ary sum-product decoding algorithm (QSPA) over the additive white Gaussian noise channel and are comparable to the improved spherepacking bound. These codes may found applications in wireless sensor networks (WSN), where the delay and energy are extremely constrained.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 1994년도 가을 학술발표회 논문집
• /
• pp.381-386
• /
• 1994

Recently, the design and construction of massive concrete structures are increased. But, the temperature rise within a large concrete mass make the construction of massive concrete structures be very difficult. Therefore, in Seohae Grand Bridge Project, the field measurement of hydration heat for the massive concrete footings(11$\times$22$\times$4m) was carried out. It was shown to be possible to construct the massive concrete footing successfully by application of pipe cooling system. And the measurement results showed that standard code for concrete practice was very conservative.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 1998년도 봄 학술발표회 논문집(I)
• /
• pp.29-32
• /
• 1998

In this paper, the properties of the agitation noise of agitator truck when flowing concrete practice is applied in construction field of our country are investigated. According to the experimental results, the solution on the noise during the agitation in flowing concrete should be considered in order to apply flowing concrete into construction field without the problems such as a civil appeal.

• 한국산업정보학회:학술대회논문집
• /
• 한국산업정보학회 2007년도 춘계학술대회
• /
• pp.58-60
• /
• 2007

The availability of Information Technology in geological and engineering geological fields is rapidly increasing in Korea. Especially GIS-based hazard mapping is the most distinctive part to predict a possibility of landslide occurrence. Integrated expert system for tunnel construction is also practically used to manage investigated or designed data and to predict un-known underground geological condition. Computer-based field data acquisition tools are also one of the typical part using information technology including GIS combined with mobile phone in Geological field.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2022년도 가을 학술논문 발표대회
• /
• pp.211-212
• /
• 2022

In this study, the cracking control performance of ultra-low shrinkage concrete was investigated by the field application. As a result, drying shrinkage crack occurred in normal concrete wall, but no crack occurred in ultra-low shrinkage concrete wall. It is determined that the drying shrinkage crack control effect of the ultra-low shrinkage concrete is excellent.

• 한국산업융합학회 논문집
• /
• 제23권5호
• /
• pp.709-716
• /
• 2020

Recently, the drone's equipment development and software technology have dramatically improved. With such developments, the applicability is increasing in various fields that require rapid geospatial information, and in practice, regulations and systems have been established, and the fields in use are increasing. Also, in Korea, corporations and public institutions are actually using and researching drones in fields such as aircraft development, communication technology development, construction site use, and surveying. However, there are no fields where drones are actually used in road construction sites. Therefore, in this study, to utilize drones that have been actively used in the civil engineering and construction fields for road construction, we investigated the current status of the Korea Highway Corporation's field drone use research and classified the possibility of drone introduction by road construction. Finally, a method of using drones at road construction sites was proposed to prepare a method for using drones at road construction sites.