• Korean Journal of Construction Engineering and Management
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• v.18 no.3
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• pp.22-32
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• 2017

Judging from the past cases, the contractor has frequently suffered losses caused by disapproved requests or reduced payments since it has not known the conditions of the contract or it has filed a claim to the owner without any proper claim system. Therefore, the existing claim process needs to be reformed. In order to reform the claim process, the contractor should consolidate the organizational structure, grant accurate duty assignments to the claims manager, implement regular staff training on how to deal with claims. In addition to this reformation, the contractor needs to improve the management of construction period and process control, and manage related documents thoroughly. Regular meetings are also necessary in claims. This study attempts to prove the effectiveness of the reformed process applied to Project "A", where the owner was responsible for the delayed supply of materials, inaccurate oral instructions, insufficient information on the work, and frequent changes of design. The project was completed in 96 months, which was extended by 34 months from the initial construction period of 62 months. The reformed claim process is expected to be of great help not only to largescale construction works but also to smallscale ones.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.321-325
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• 2008

3D and BIM technology are presumed to be used more and more in the construction industry. The scope of this paper arose from a general wondering of how the constructor in general can benefit from the use of 3D models. Presented herewith is the first application of BIM in Korea to a actual bridge construction site located in Cheongpoong in Chooncheongbook-Do. This paper tries to integrate design, cost and schedule under location-based conditions with industry-specific solution for 3D modeling. 292 activities constitute the cable-stayed bridge of 442m long with a main span of 327m long. Integration of 3D model, cost and schedule is shown by comparing the measurements of works at a specific time by use of 2 different construction sequencing scenarios and cost breakdown structures.

• Proceedings of the Korean Geotechical Society Conference
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• 2009.09a
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• pp.695-699
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• 2009

3D and BIM technology are presumed to be used more and more in the construction industry. The scope of this paper arose from a general wondering of how the constructor in general can benefit from the use of 3D models. Presented herewith is the first application of BIM in Korea to a actual bridge construction site located in Cheongpoong in Chooncheongbook-Do. This paper tries to integrate design, cost and schedule under location-based conditions with industry-specific solution for 3D modeling. 292 activities constitute the cable-stayed bridge of 442m long with a main span of 327m long. Integration of 3D model, cost and schedule is shown by comparing the measurements of works at a specific time by use of 2 different construction sequencing scenarios and cost breakdown structures.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.3
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• pp.707-714
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• 2015

The national government is pushing hard the adoption of the BIM (Building Information Modeling) technology in the construction industry. The BIM application provides a visualized environment where the construction manager can inspect the structure of buidling structures. The application also provides information on activity progresses as well as earned values. However, BIM is mostly applied to visualize a structural object with definite forms. The BIM technology needs to be extended to include an object with non-definite forms such as earthwork operations. The objective of this study is to present a prototype of earthwork BIM in the construction operation. The prototype has been built on the attributes of geological information, construction equipment and positioning. The prototype of earthwork BIM shows a 3D graphic simulation of construction equipment moving around for digging and loading.

• Korean Journal of Construction Engineering and Management
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• v.14 no.2
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• pp.117-130
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• 2013

It is a difficult thing to administer a various task in the construction site because, the person placing an order are eagerly demanding for the reduction of project duration as the trend of construction are becoming larger and international. The advanced country have made an effort to development PMIS based on the Web, which to exchanges a various construction information such as Time Management/Construction Management/Resource Management/Document Management to solve these problems since 2000. However, the expectation to develop a smart PMIS that can deal with a more quick change of a various process are becoming lager as the lively supply of IT equipment such as smart phone and table PC. The research are aim to develop the next generation smart PMIS, which is link with the table PC and smart phone for a site manager to use the system based on the web in the movement. Also, it has an object in view to introduce the development process and the major function of the next generation PMIS.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.385-385
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• 2022

우리나라는 이수와 치수, 하천환경 기능 증대를 위해 매년 많은 예산을 하천에 투입하고 있다. 그러나 다양한 형태의 하천사업이 완료된 이후 사업의 추진과정과 사업결과로써의 실효성을 평가할 수 있는 방법이 없다는 문제점으로부터 사업구상, 사업계획 및 설계, 시공 및 관리, 사업효과 등 하천사업 추진의 통상적 과정을 종합적으로 평가할 수 있는 평가기법을 선행연구를 통해 제시한바 있다. 이러한 평가는 시스템을 통해 실시할 경우 효율성을 크게 높일 수 있다. 본 연구에서는 사업현황 및 사업공정정보를 확인하고, 예산을 관리할 수 있도록 기존에 구축된 하천사업(공사)관리시스템 상에 하천사업평가를 진행할 수 있는 기능을 추가적으로 개발하였다. 하천사업평가에 참여하는 위원들은 웹기반으로 개발된 시스템에 장소와 시간에 구애받지 않고 접속하여 평가를 진행할 수 있다. 시스템을 통해 평가에 필요한 자료는 즉각적으로 확인이 가능하고, 평가지표에 따른 점수부여 뿐만 아니라 평가의견을 기술할 수 있도록 하였다. 하천관리담당자는 시스템을 통해 개별 위원 또는 종합 평가결과를 확인하고, 유사사업과의 비교를 통해 향후 개선방향 및 유지관리 방향을 설정할 수 있다. 하천관리담당자가 신규사업을 계획하는 경우 과거 다양한 사업들의 평가결과를 확인함으로써 사업의 질적 향상 및 실효성을 높이는데 도움을 받을 수 있을 것으로 기대된다.

• Journal of the Korea Institute of Building Construction
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• v.16 no.4
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• pp.349-357
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• 2016

Recently, the quantity of risk in construction project has been inflated due to the fact that current construction projects have been large and complicated. Therefore, a study on the risk management methods is necessary that can predict and respond to the need in complicated modern construction projects. In this study, the objective is to analyze the cause of accident in actual construction sites and develop a risk assessment model based on insurance claims records. To reach the goal of this study, first, the frequency and severity of accidents are analyzed the causes of accidents based on the classification; progress rate, season, and total construction costs. Second, a risk assessment model is developed by utilizing a multiple regression analysis. The dependent variable is loss ratio of material damage and three categories; natural hazards, geographic information, and construction method & ability, are used as the independent variables. The model's adjusted R-square is 0.455. The contributions of this study will be used as a material for a quantitative risk analysis model development and review of the construction risk factors for future study.

• Korean Journal of Construction Engineering and Management
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• v.24 no.1
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• pp.40-50
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• 2023

Quality control (QC) is an essential work for the successful construction project execution. Recently, robust application of ICT to the QC tasks leads to utilizing innovative technologies and equipment. However, overall planing of QC works needs to take place before applying new technologies to each and individual QC task. The objectives of this research involve developing a database and an algorithm that identifies QC tasks and related information upfront. In addition, the researchers developed a methodology to generate inspection tasks in conjunction with construction work tasks. The Korean Ministry of Land and Transportation provides standard supervision checklists. They were classified based on criteria of inspection items, methods, period and the scope. Reinforced concrete work was selected as a case study for validation of the method. This framework can function when planing construction tasks with any type of planning tools and innovative technologies. The researchers expect this framework may contribute to various construction projects when developing QC plans and tasks with applicable technologies.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.11
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• pp.208-216
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• 2019

Construction projects generate a massive amount of diverse information. It takes at least five years to more than 10 years to complete, so it is important to manage the information on a project's history, including processes and costs. Furthermore, it is necessary to determine if construction projects have been carried out according to the planned goals, and to convert a construction information management system (CALS) into a virtuous cycle. It is easy to ensure integrated information management in private construction projects because constructors can take care of the whole process (from planning to completion), whereas it is difficult for public construction projects because various agencies are involved in the projects. A CALS manages the project information of public road construction, but that information is managed according to CALS subsystems, resulting in disconnected information among the subsystems, and making it impossible to monitor integrated information. Thus, this study proposes integrated information management measures to ensure comprehensive management of the information generated during the construction life cycle. To that end, a CALS is improved by standardizing and integrating the system database, integrating the individually managed user information, and connecting the system with the Dbrain tool, which collectively builds artificial intelligence, to ensure information management based on the project budget.

• Journal of the Society of Disaster Information
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• v.20 no.1
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• pp.106-116
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• 2024

Purpose: This paper conducts IoT and CCTV-based safety monitoring to analyze accidents and potential risks occurring at construction sites, and detect and analyze risks such as falls and collisions or abnormalities and to establish a system for early warning using devices like a walkie-talkie and chatbot service. Method: A safety management service model is presented through smart construction technology case studies at the construction site and review a relevant literature analysis. Result: According to 'Construction Accident Statistics,' in 2021, there were 26,888 casualties in the construction industry, accounting for 26.3% of all reported accidents. Fatalities in construction-related accidents amounted to 417 individuals, representing 50.5% of all industrial accident-related deaths. This study suggests implementing AI chatbot services for construction site safety management utilizing IoT-based health monitoring technologies in smart construction practices. Construction sites where stakeholders such as workers participate were demonstrated by implementing an artificial intelligence chatbot system by selecting major risk areas within the workplace, such as scaffolding processes, openings, and access to hazardous machinery. Conclusion: The possibility of commercialization was confirmed by receiving more than 90 points in the satisfaction survey of participating workers regarding the empirical results of the artificial intelligence chatbot service at construction sites.