• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.290-291
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• 2018

The purpose of this study is to analyze the trends and changes in the environment of construction technology and industry through big data analysis and to draw out implications. Based on this research, this study will be used as a basic research for the vision of industrial competitiveness in the field of construction engineering technology and the policy task.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 추계학술대회 논문집
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• pp.546-551
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• 2001

We analysed the affection to subgrade that railway underground crossing construction make with studying displacement of subgrade of each construction methods and processing of Front jacking method and Pipe roof method with already-measured data(during the construction) and additionally-measured field test data in railway underground crossing construction. We measured vertical and horizontal displacement at two construction places of front jacking method and pipe roof method each, and we analysed the results of the measurement at each stage of construction to applied to the excution of construction.

• 한국환경과학회지
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• 제31권7호
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• pp.653-663
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• 2022

Research activities and discussions on specialized areas reflecting the specificity of landscape construction are necessary. Therefore, this study was conducted with the purpose of presenting basic data for efficient field management by deriving items necessary for safety management in landscape construction fields through experts' opinions. A survey was conducted using Delphi analysis to derive "management items" and "safety management items according to landscape type" for landscape construction field safety for a total of 15 landscape construction specialists. The survey results showed that four top items were derived from the "management items" for the safety of landscape construction fields; they include: "safety and health management organization and education," "industrial safety and health management expenses," "payment of personal protection," and "establishment of safety measures." In addition, two to five items for each higher item appeared and resulted in a total of 13 lower items. Personnel, organization, budget, etc. for safety management are always required in the field, and the monitoring part of whether these elements are working was also taken up as a management item. In the "Management items according to each landscape construction" a total of eight landscape type were distinguished, they include: 'Reinforced concrete work', 'Masonry work', 'Plaster's work', 'Waterproof work', 'Stone masonry work', 'Pavement work', 'Facilities work', and 'Planting work'. Furthermore, two to seven sub-items for each construction type were derived, and a total of 35 management items were presented.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 추계학술대회
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• pp.483-493
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• 2009

The global economic recession caused a great change of the labor environment such as restructurings and unstable employment. This facts brought about an increase in sense of rivalry, over workload, job uncertainty and lowering of self-confidence. Due to the fact that the work process and employing system in construction field is little differ from normal industries, especially, labors working in construction field are much exposed to the job stress. On this study, we survey construction-field labors and made an analysis of the gathered data through the statistic method to reveal what kind of job-stress factors influence on the defects of construction works. As the result, we investigated the truth of the induction factors which cause the job-stress in costruction field and proposed an alternative plan for an effective job-stress management which make the defect rate low.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.925-928
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• 2007

건설사업 수행 과정에서 발주청과 시공사, 감리단 등의 현장 업무담당자간에 공사현황, 공정보고 등 각종 현장보고자료가 교환된다. 이들 현장보고자료는 표준화가 되어 있지 않아 발주청이 요구하는 양식이 매번 다르거나 현장 업무담당자가 임의적으로 양식을 만들어 자료를 작성하고 FAX, e-mail, 종이문서 등 서로 다른 매체로 보고하고 있다. 이 때문에 현장 업무담당자는 동일한 정보를 발주청이 요구하는 양식에 맞춰 재작성하는 경우가 많고 발주청은 현장별로 보고된 자료를 수작업으로 취합하여 집계함에 따른 과중한 업무의 원인이 되고 있다. 본 연구는 이러한 문제를 해결하기 위해 월간공정보고와 공사현황보고를 대상으로 전자문서 일원화 체계를 마련하였다. 아울러 기존에 운영 중인 건설사업 관리시스템에 전자문서 일원화에 따라 현장보고업무를 전자 처리할 수 있는 기능을 개발하였으며 개발된 시스템의 현장 적용성 검증을 위해 도로건설현장을 대상으로 시범 적용과 설문조사를 실시하였다. 본 연구 결과를 현업에 적용할 경우에 현장보고 업무의 효율화 ${\cdot}$ 간소화를 높일 수 있을 것으로 사료된다.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.1255-1255
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• 2022

Recently, research on digital twins to generate digital information and manage construction in real-time using advanced technology is being conducted actively. However, in the construction industry, it is difficult to optimize and apply digital technology in real-time due to the nature of the construction industry in which information is constantly fluctuating. In addition, inaccurate information on the topography of construction projects is a major challenge for earthmoving processes. In order to ultimately improve the cost-effectiveness of construction projects, both construction quality and productivity should be addressed through efficient construction information management in large-scale earthworks projects. Therefore, in this study, a 3D digital map-based AR site management work support system for higher efficiency and accuracy of site management was proposed by using unmanned aerial vehicles (UAV) in wide earthworks construction sites to generate point cloud data, building a 3D digital map through acquisition and analysis of on-site sensor-based information, and performing the visualization with AR at the site By utilizing the 3D digital map-based AR site management work support system proposed in this study, information is able to be provided quickly to field managers to enable an intuitive understanding of field conditions and immediate work processing, thereby reducing field management sluggishness and limitations of traditional information exchange systems. It is expected to contribute to the improvement of productivity by overcoming factors that decrease productivity in the construction industry and the improvement of work efficiency at construction sites.

• 소음진동
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• 제9권5호
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• pp.899-905
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• 1999

Construction equipment noise has caused much annoyance for a number of dwellers in nearby construction field and has become a very serious issure in our living environment. Therefore, in our country, a practical solution and a better method of reducing construction equipment noise are highly required in construction field. Practical solutions for the construction equipment noise, however, are very difficult because of the poorness of basic data and insufficiency of the existing research. Especially, in order to establish the sound insulation plan about pilling works noise with high sound pressure level and impactive, a real situation of sound characteristics about the noise of pilling works in foundation work demands more detail investigation. In this point, this study attempts to survey the characteristics of attenuation and propagation of construction equipment noise in pilling work using SIP(soil-cement injected precast pile) method with casing. And this study intends to get the basic data for establishment of a standard about construction noise.

• 한국주거학회논문집
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• 제9권2호
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• pp.67-78
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• 1998

Construction equipment noise has caused much annoyance for a number of dwellers in nearby construction field and it has become a very serious issue in our living environment. Therefore, in our country, a practical solution and a better method of reducing construction equipment noise are highly required in construction field. Practical solutions for the construction equipment noise, however, are very difficult to obtain, because of the lack of basic data and insufficient research works. Especially, in order to establish a successful sound isolation plan for piling work noise, which has high sound pressure level, the characteristics of the impact noise should be closely monitored and analyzed. This study attempts to survey the characteristics of attenuation and propagation of construction equipment noise in piling work by SIP(soilcement injected precast pile) method. In addition, this study intends to get the basic data to establish a standard about construction noise.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 춘계 학술발표회
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• pp.457-467
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• 2010

The settlement prediction is very important to preloading method for a construction site on a soft ground. At the design stage, however, it is hard to predict the settlement exactly due to limitations of the site survey. Most of the settlement prediction is performed by a regression settlement curve based on the field data during a construction. In Korea, hyperbolic method has been most commonly used to align the settlement curve with the field data, because of its simplicity and many application cases. The results from hyperbolic method, however, may be differed by data selections or data fitting methods. In this study, the analyses using hyperbolic method were performed about the field data of $\bigcirc\bigcirc$ site in Pusan. Two data fitting methods, using an axis transformation or an alternative method, were applied with the various data group. If data was used only after the ground water level being stabilized, fitting results using both methods were in good agreement with the measured data. Without the information about the ground water level, the alternative method gives better results with the field data than the method using an axis transformation.

• 대한토목학회논문집
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• 제43권1호
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• pp.99-107
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• 2023

최근 건설 현장의 안전사고 비율은 전체 산업에서 가장 높은 비중을 차지한다. 인공지능 기술을 건설 현장에 접목하기 위해서는 기초 학습 자료로 활용될 수 있는 데이터셋 확보가 필수적이다. 본 논문에서는 실제 현장 확보를 통해 원천 데이터를 수집하였으며, 토목 현장에서 주로 운용되고 있는 주요 건설장비 객체를 선정하고 약 9만장의 정지영상 데이터셋 가공을 통해 최적의 학습 데이터셋 구축을 완료하였다. 또한, 객체 인식분야의 대표적인 모델인 YOLO를 활용하여 구축된 데이터의 검증 작업을 수행하였고 90 % 근접한 검출 성능을 확인해 데이터 신뢰성을 확보하였다. 본 연구에서 사용되는 학습 데이터셋은 공공데이터포털에서 활용 가능하도록 공개를 완료하였다. 본 데이터셋은 향후 건설안전 분야의 객체 인식 기술의 건설현장 적용을 위한 기반 데이터로 활용 가능하리라 판단된다.