• Title/Summary/Keyword: Construction Process

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A Survey on the Research Trends of Clothing Construction in Korea - Focused on Journal Publications from 2001 through 2010 - (한국 의복구성학 분야의 연구동향 - 2001~2010년까지 학회지를 중심으로 -)

  • Choi, Hae-Joo
    • Journal of the Korean Society of Costume
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    • v.63 no.3
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    • pp.138-150
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    • 2013
  • The purpose of this study was to investigate research trends of subject matter in clothing construction field in clothing and textiles and to suggest the information for the future directions for fashion business and research. 2737 articles with clothing and textiles subject matter, 350 articles with clothing construction field in the Journal of Korean Society of Costume and Journal of the Korean Society of Clothing and Textiles from 2001 through 2010 were analyzed. The major conclusions of the study are as follows: 1. Clothing construction field took 12.8% with 350 articles in the researches of the Journal Publications in 2000s. 2. Clothing construction field showed more proportions in the latter half of the decade. 3. Clothing construction field were classified into 5 topics : topic of basic pattern and pattern for apparel, topic of body types, topic of functionality of clothing and protective clothing, topic of size system of apparel, topic of sewing and manufacturing process. 4. In clothing construction field, topic of basic pattern and pattern for apparel took the most proportions. 5. Topic of body types, topic of functionality of clothing and protective clothing, topic of size system of apparel, topic of sewing and manufacturing process were followed.

The construction project's risk threshold calculation methodology applying a concept of VaR (VaR개념을 응용한 건설공사 위험허용도 산정방법)

  • Kim Seon-Gyoo;Kim Jae-Jun;Kim Kyung-Rai
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.65-72
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    • 2001
  • With the recent rising project complexities and competitive environments in the construction projects, a risk management is recognized as more important management tool than the others. However, as most risk management techniques applied to the construction projects are centered around their initial phases and risk analyses, they are not developed into general project management technique such as time management, cost management and quality management, etc., that are usually applied in the process of construction. Thus, this paper proposes a response process to construction project risks based on the risk threshold and its calculation methodology applying a concept of VaR to establish risk management as general management technique in the construction projects.

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Elicitation of Potential Information Technologies for Construction Process and Tasks - Using Cross-Impact Analysis (교차영향분석을 활용한 건설 업무기능 및 공종 별 주요 IT기술 도출)

  • Park, Sung-Hoon;Kwon, Soon-Wook;Kim, Young-Suk
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.1
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    • pp.160-169
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    • 2012
  • Domestic construction industry, which has recently had difficulty in market saturation and slowing growth, is trying to resolve this situation by incorporation with IT technology. However, there was less choice and has simply used IT technology as required in construction field. In other word, IT technology has applied to not all processes but some parts. Therefore, in this paper, we find out suitable and promising IT technology to each step of construction process, analyzing IT convergence technology related to whole process comprehensively in order to suggest fundamental directions for effective construction IT convergence in the field.

Identifying Wastes in Construction Process and Implementing the Last Planner System in India

  • Bhatla, Ankit;Pradhan, Bulu;Choi, Jin Ouk
    • Journal of Construction Engineering and Project Management
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    • v.6 no.1
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    • pp.11-19
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    • 2016
  • Most of the Indian contractors are not well equipped to handle the growing demand of infrastructure development; hence construction projects frequently run in to time and cost overruns, disputes and quality issues. This study aims to improve the construction industry in India by implementing lean principles to eliminate non-value adding activities (wastes). The purpose of this study is to 1) identify the wastes and their sources affecting the construction process, and 2) to identify problems and document lessons by applying a Last Planner System (LPS) to a sample project. First, the researchers identified that Delays, Rework, and Interruptions were the most critical wastes affecting the construction process and Poor management control, Poor Planning and Shortage of Resources were the major sources of the above mentioned wastes. Second, the researchers report the Percent of Planned Complete (PPC) analysis results and experienced problems after implementation of LPS at the sample project. It was observed that much more improvement could have been achieved if there was consensus between the owners and the contractor on the implementation of the LPS in its entirety. Some of the problems experienced in the implementation of the LPS like lack of scheduling, resource and material shortage were found to be similar to those in developed countries.

An Analysis of Influences on Partial Work Rates under the Whole Work Rates on the Landscape Constructions in the Ulsan Grand Park (울산대공원 조경공사의 각 세부공정이 전체공정율에 미치는 영향분석)

  • 성백진;이재근;최종희
    • Journal of the Korean Institute of Landscape Architecture
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    • v.31 no.6
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    • pp.64-72
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    • 2004
  • This study analyses influences on partial work rates under whole work rates on landscape constructions in Ulsan Grand Park. The schedule management is one of the factors that are very important to the process management of landscape construction. The time process of the whole construction is supposed to be affected by several kinds of work that organize the whole construction. First, this study divides the construction of Ulsan Grand Park into 10 kinds of works: earth work, rain and sanitary sewage water work, water-supplying work, planting work, paving work, water proofing work, fountain work, instituting work and temporary work. Then the time-process curves of all kinds of work are statistically compared to that of the whole construction. The trial methods of statistics are lineal regression, non-lineal regression, and principal analysis. In the result of the non-lineal regression, the rain and sanitary sewage water work, the water-supplying work and the earth work strongly affected the whole construction. The principal analysis results show that the whole construction is affected strongly by the water-supplying work, the rain and sanitary sewage water work and the earth work. However the lineal regression is shown to be senseless because of its high collinearity.

Prediction of duration and construction cost of road tunnels using Gaussian process regression

  • Mahmoodzadeh, Arsalan;Mohammadi, Mokhtar;Abdulhamid, Sazan Nariman;Ibrahim, Hawkar Hashim;Ali, Hunar Farid Hama;Nejati, Hamid Reza;Rashidi, Shima
    • Geomechanics and Engineering
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    • v.28 no.1
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    • pp.65-75
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    • 2022
  • Time and cost of construction are key factors in decision-making during a tunnel project's planning and design phase. Estimations of time and cost of tunnel construction projects are subject to significant uncertainties caused by uncertain geotechnical and geological conditions. The Gaussian Process Regression (GPR) technique for predicting ground condition and construction time and cost of mountain tunnel projects is used in this work. The GPR model is trained with data from past mountain tunnel projects. The model is applied to a case study in which the predicted time and cost of tunnel construction using the GPR model are compared with the actual construction time and cost for model validation and reducing the uncertainty for the future projects. In addition, the results obtained from the GPR have been compared with to other models of artificial neural network (ANN) and support vector regression (SVR) that the GPR model provides more accurate results.

APPLYING LEAN CONSTRUCTION TO DESIGN PHASE

  • Joo-Hyun Park;Dae-young Kim;Hak-Ki Lee
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.1208-1211
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    • 2005
  • The design phase has a great influence on the success of subsequent phases in the project which can be connected with the success of the overall project. Several studies have focused on the effective design management. However, it is too complicated and difficult to manage the design process for the reason that it has a lot of participants and design information and consists of thousands of decisions by an architect alone. Accordingly, it is the main issue for the success of the project how well the design phase be organized and managed. In recent, even in domestic, the importance of design phase has begun to be referred in the conferences. Lean Construction also has a close look at those issues and makes ready to apply specific management methods, called to Lean Design & Construction. Managers can consider a variety of uncertainties to be under control through making the overall process effectively from the early stage. By establishing the efficient process from the design phase before the construction phase, managers can result in a desirable productivity. The aim of this study is to bring the concept (Lean Design & Construction) in domestic design circumstances and verifies the possibility how to apply the concept to the design phase.

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A Work Process for Productivity Improvement of Concrete Structural Frame Work in Tall Building (초고층 골조공사 생산성 향상을 위한 작업 프로세스 개선)

  • Jang Ji-Sun;Shin Yoon-Seok;Kang Kyoung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.05a
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    • pp.161-164
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    • 2005
  • According to the trend of tail building, it is essential to improve productivity in tall building construction. However, the study on that is insufficient until now. Therefore, the purpose of this study is to propose a new work process of efficient concrete structural fame work to improve productivity in tall building construction. The results of being applied proposed work process are that the 5day cycle time of concrete structural frame work is cut by 0.5day and the quantity of rebar to be demanded in concrete structural frame work is reduced.

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Process Model for development of EVMS in Nuclear Power Plant Project (원전건설 성과관리시스템(EVMS) 개발을 위한 프로세스 모델 연구)

  • Kim, Yun-Myung;Won, Seo-Kyung;Shin, Il-Sub
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.05a
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    • pp.58-59
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    • 2014
  • EVM(Earned Value Management) is a management methodology for integrating scope, schedule and resources, and for objectively measuring project performance and progress. EVMS(Earned Value Management System) has been used for the performance measurement of R&D and construction projects in developed countries such as United States, United Kingdom and Australia. The nuclear power plant (NPP) projects in Korea have not applied EVMS. However, EVMS has come into request for overall schedule and cost risk management and performance measurement in overseas project of the nuclear power plant as a contractor. In this paper, based on the global EVMS guidelines, EVMS per unit processes have been developed for NPP projects. Moreover, using Business Process Management (BPM), it proposes an integrated process model with tasks, roles, and procedures for EVMS for NPP construction projects.

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Direct-Current Based Remedial Technologies for Contaminated Soils and Groundwaters

  • Lee, Suk-Young;Lee, Chae-Young;Yoon, Jun-Ki;Kim, Kil-Hong
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2002.09a
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    • pp.3-6
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    • 2002
  • Electron transfer is the major natural process governing the behavior of contaminants in soils and groundwaters. Biological degradation of contaminants, i.e., microbial transformation of hazardous compounds, is a well known irreversible electron transfer process. Although it is not well defined as a separate process, abiotic electron-transfer is also an important process for mobilizing/demobilizing inorganic contaminants in soils and groundwaters. Therefore, numerous remedial technologies have been developed on the basis of electron transfer concept. Among them,

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