• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.537-543
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• 2009

Noting the changes within the Singapore construction industry, fuelled by the government's 'green' initiatives in tandem with the prolonged effect of the 1997-2005 recession, this paper investigates Singapore contractors' attitudes towards environmental sustainability. Data were collected from 34 interviews with senior management of large and medium-sized general building contractors and the firms' archival records. The results show that the majority of the contractors embrace positive attitudes towards environmental sustainability. The respective contractors explicitly express their environmental drives by incorporating keywords such as 'quality', 'sustainability' and 'environmental and social benefits' into their firms' mission statements. The results also show that three environmental-related measures implemented by all contractors are: (i) stricter housekeeping procedures in construction sites; (ii) stricter wastage rates for construction materials; and (iii) greater focus on Just-In-Time delivery to minimise materials deterioration due to inappropriate site storage.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.273-279
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• 2011

Concerns over the environment have spawned a number of research studies in the construction industry, as the construction of built environments and large infrastructures involves diverse environmental impacts and loads of hazardous emissions. Many researchers have attempted to quantify these environmental loads, including greenhouse gases, carbon dioxide, nitrogen dioxide, and sulfur dioxide, to name a few. However, little research has been conducted regarding integrating the life-cycle assessment (LCA) of environmental loads with the current life-cycle cost analysis (LCCA) approach. This study aims to estimate the environmental loads as a monetary value using the European Climate Exchange (ECX) rate and, then, to integrate those impacts with the pure construction cost. Toward this end, this study suggests an integrated approach that takes into account the environmental effect on the evaluation of the life-cycle cost (LCC). The bill of quantity (BOQ) data of a real highway project are collected and analyzed for this purpose. As a result, considering the environmental loads in the pavement process, the total LCC increased 16% from the traditional LCC cost. This study suggests an integrated approach that will account the environmental effect on the LCC. Additionally, this study is expected to contribute to better decision-making, from the perspective of more sustainable development, for government as well as for contractors.

• 한국산업보건학회지
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• 제10권1호
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• pp.74-92
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• 2000

This study was performed to evaluate the working conditions In construction workers through measurements of working environments and to improve the working conditions and to design the appropriate environmental and health management system. The results of measurement for working environments in construction work are as following: 1. The excess rate of noise and dust concentration in express highway construction, road construction, building construction and interior painting was 28.6% and 24.5% respectively. 2. The excess rate of mixed organic solvents concentration in interior painting was 39.3%. 3. The chain type bulldozer has the highest level of vibration; the excess rate was 85.7%, and among the vibration instruments, the level of left hand's vibration of all vibrators exceeded the criterion and in the case of drilling all the level of vibration exceeded the criterion in both hands. On the basis of the results in this research the environmental and health management system for construction workers must be considered. Therefore, it is necessary to be introduced the special medical examination and measurement of working environments in construction industry. In defining "the working place" of Article 39 of Enforcement regulations of industrial safety and health act, the word "indoors" should be deleted. Then the eligible industry for measurement of working environment must be extended. And it is also necessary for construction industry to be performed group health management service by agencies such as other manufacturing industry.

• 한국건축시공학회지
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• 제20권2호
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• pp.199-212
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• 2020

In evaluating the competitiveness of construction companies and their development strategies, patents are a useful and objective source of technical information. In this study, the cutting-edge technologies of construction industries of China, Japan, and South Korea were investigated based on the data of patent applications filed by a total of 15 construction companies (five companies from each country). The related technologies were classified into six core technology groups based on their keywords. After that, we used four patent analysis methods: time series analysis, IP (Intellectual Property) emergence level analysis, spiral module analysis, and OS (Object-Solution) Matrix analysis, to identify the promising technologies/vacant technologies for global construction companies in China, Japan, and South Korea, and to analyze the technical competitiveness of the three countries. The findings of this study showed that each country can claim a relative technological advantage over the others. Overall, 3D printing and offsite construction technology, data acquisition technology, AR and VR technology are expected to be promising in the Asian region. The present study contributes to the body of knowledge by expanding our understanding of technological innovation for the competitiveness of companies and the technology development strategies pursued by the construction industries of China, Japan, and South Korea.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.60-65
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• 2013

Introducing the concept of construction safety in the design/engineering phase can improve the efficiency and effectiveness of safety management on construction sites. In this sense, further improvements for safety can be made in the design/engineering phase through the development of (1) an automated hazard identification process that is little dependent on user knowledge, (2) an automated construction schedule generation to accommodate varying hazard information over time, and (3) a visual representation of the results that is easy to understand. In this paper, we formulate an automated hazard identification framework for construction safety by extracting hazard information from related regulations to eliminate human interventions, and by utilizing a visualization technique in order to enhance users' understanding on hazard information. First, the hazard information is automatically extracted from textual safety and health regulations (i.e., Occupational Safety Health Administration (OSHA) Standards) by using natural language processing (NLP) techniques without users' interpretations. Next, scheduling and sequencing of the construction activities are automatically generated with regard to the 3D building model. Then, the extracted hazard information is integrated into the geometry data of construction elements in the industry foundation class (IFC) building model using a conformity-checking algorithm within the open source 3D computer graphics software. Preliminary results demonstrate that this approach is advantageous in that it can be used in the design/engineering phases of construction without the manual interpretation of safety experts, facilitating the designers' and engineers' proactive consideration for improving safety management.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.196-203
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• 2013

Environmental problems like global warming have now become important issues that should be considered in all industries, including construction. In South Korea, many studies have been conducted to achieve the government's goals of reduction in environmental impacts. However, the research on buildings has only focused on CO₂ emission as a research target despite the fact that other environmental impacts resulting from ozone depletion and acidification should also be considered, in addition to global warming. In this regard, this study attempted to propose assessment criteria and methods to evaluate the environmental performance of the structures from various aspects. The environmental impact category can be divided into global impacts, regional impacts, and local impacts. First, global impacts include global warming, ozone layer depletion, and abiotic resource depletion, while regional impacts include acidification, eutrophication, and photochemical oxidation. In addition, noise and vibration occurring in the building construction phase are defined as local impacts. The evaluation methods on the eight environmental impacts will be proposed after analyzing existing studies, and the methods representing each environmental load as monetary value will be presented. The methods presented in this study will present benefits that can be obtained through green buildings with a clear quantitative assessment on structures. Ultimately, it is expected that if the effects of green buildings are clearly presented through the findings of this study, the greening of structures will be actively expanded.

• 한국건설관리학회논문집
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• 제13권2호
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• pp.3-10
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• 2012

현행 "건설기술관리법" 시행규칙의 환경보전비 세부산출기준에 따르면 환경보전비는 표준품셈 등을 이용하여 원가계산에 따라 산출하거나 원가계산이 곤란한 경우에는 공종별로 직접비에 요율을 적용하여 산정하도록 규정하고 있다. 그러나 원가 계산으로 산정할 경우, 현행 표준품셈에 환경보전비에 해당하는 항목이 일부 제한된 항목만 명시되어 있어 다양한 환경오염 방지시설의 설치 및 운영에 사용되는 제반비용을 반영하는 데 현실적인 제약이 있다. 아울러 요율을 적용하여 산정하는 경우에도 공종별로 획일적인 요율을 적용하도록 규정되어 공사현장의 입지여건 등에 따른 특성을 제대로 반영하지 못하고 있어 공사현장의 효율적인 환경관리가 어려운 실정이다. 따라서 본 연구에서는 도로공사 건설현장을 대상으로 공사규모, 현장 입지조건, 환경보전비 계상방식 등에 대하여 실태 조사 및 분석을 실시하여 이를 토대로 환경보전비의 적정 계상 방안을 제시하고자 한다.

• 대한토목학회논문집
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• 제37권1호
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• pp.143-151
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• 2017

최근 기후변화에 대응하기 위해 새롭게 체결된 파리협정에 따라 우리나라는 2030년까지 기준대비 37%의 탄소배출량 감축목표를 제시하였다. 이를 위해 28개 산업분류에서 3번째로 많은 이산화탄소를 배출하는 건설산업에서 보다 적극적인 연구가 필요하다. 본 연구에서는 기존의 완공된 국도건설사례들 중 터널과 교량을 제외한 도로분야만을 이용하여 전과정평가(LCA)를 실시하여 환경부하량을 산출 하였다. 산출된 환경부 하량을 기반으로 대공종의 대표공종을 선정한 결과 토공, 배수공, 포장공이 전체의 84%를 차지하였으며, 세부공종별 대표공종을 선정하여 각 세부공종별 환경부하량 특성을 분석하였다. 국도건설공사 시 환경부하량 공종별 배출특성을 이용한다면 환경부하량을 기반으로 하는 친환경적인 국도건설공사 의사결정에 도움이 될 것이다.

• 대한환경공학회지
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• 제28권10호
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• pp.987-990
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• 2006

• 한국소음진동공학회논문집
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• 제23권11호
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• pp.982-986
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• 2013

The noise emitted from construction machinery has long been a cause of environmental disputes, especially to the nearby residents. In 2008, the Ministry of Environment adopted the construction machinery noise labeling system to encourage the development of the low noise construction machinery. After the implementation of the noise labeling system of the construction machinery, the noise emitted from the construction machinery has been decreased over the six years. But, as the quality of life improves, a growing number of people desire more comfortable and quite living environment. Under the situation, new systems like the low noise labeling system are considered to encourage the development of the low noise construction machinery. In accordance with the low noise labeling system, the construction machinery satisfying the standard of low noise are qualified to attach the low noise label in front of the products. Thus, the product qualified the low noise certification will be incentivized by the choice of the consumer. In this paper, we have studied the necessity of the low noise labeling system for the construction machinery and the considerations to adopt the low noise labeling system of construction machinery. And we have studied appropriate criterion to judge the low noise construction machinery. The considerations studied in this paper will be helpful to adopt the low noise labeling system of construction machinery in the future.