• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.11a
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• pp.50-51
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• 2017

The safety accident of construction industries occur variously in other industries, including other industries, resulting in significant losses of human and material losses. In particular, General worker represents the highest safety accident rate each year, and the various types of accidents are the ones that show the greatest interest in the field, which is the most interesting job in the field. This study aims to identify trends in safety hazards and to analyze the accident severity for major types and influence factors.

• Journal of the Architectural Institute of Korea Structure & Construction
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• v.34 no.3
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• pp.69-76
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• 2018

General workers who assist various technicians in different fields with their work across the whole construction sites without having a particular skill are at risk of the highest accident rate and their accident form becomes varied. Accordingly, this study was conducted to identify the relationship between form of safety accident and influence factor in general workers and analyze accident severity by influence factor. The followings are the results from this study. First, as a result of analyzing major form of accident and influence factors in general workers with network analysis methodology, nine forms of accident and seventeen influence factors were drawn. Second, it was found that in accident severity among general workers, collapsing, among various forms of accident, appeared the highest, followed by fall, electric shock, fire, hit by an object, bumped against, trip, scission getting cut chopped in order. Third, main points of special, concentrated, and permanent management were presented in order to reduce the safety accident in general workers effectively.

• Journal of Korean Society of Forest Science
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• v.104 no.4
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• pp.632-639
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• 2015

Working in the forest would require a wide range of skills and experience for specific tasks which involve with a high level of risks to worker's safety. However, there has been a concern on the current standard wage system for forest workers because it does not effectively reflect the characteristics of typical working conditions in the forest. In addition, the current standard wages for forestry workers was estimated based on the construction industry's wage system. Therefore, the purpose of this study is to assess a current wage system through the mail survey method and to develop a new wage system for forest worker which effectively reflects skill sets and experience required for successful completion of the work in the forest. We mailed the survey questionnaire consisting of 19 questions to 659 forest workers and received 188 responses resulting in a 28.5% response rate. The results showed that the current average optimal wages of forest worker, special worker and feller were 97,680won/day, 127,559won/day and 152,403won/day, respectively though there were variations depending on the regions. In developing the new standard wage system, this study suggest the current work types(worker, special worker and feller) could be divided into 5 work types (forest-environment workers, forest operations in beginner, forest operations in intermediate, forest operations in advanced and forest equipment operator) reflecting specialty of forest operation thereby stabilizing the new wage system for forest workers.

• Journal of the Korea Institute of Building Construction
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• v.10 no.3
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• pp.121-128
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• 2010

This study aims to make improvements to the standard estimation process used to estimate reasonable costs for construction work, and to suggest a work crew based estimation using a new cost estimation model. In addition, work crew shift combination and construction process were systematically organized in order to improve the estimation technique and the construction capability of the cement liquid waterproofing work for apartment buildings. In addition, in terms of manpower and productivity, analyses were performed on the cement liquid waterproofing work for apartment buildings with net areas between $84-85m^2$ and $125-184m^2$, and the results were then compared with those calculated using the conventional work-crew based estimation method. Through this study, when the results of this study and those calculated by the conventional method were compared, for apartments with the net area of $84-85m^2$, the differences between specialists were shown to be 1.91 times to 2.13 times on average, while they were 8.82 times to 9.52 times between normal workers on average. For apartments with the net area of $125-184m^2$, the differences betweenspecialists were shownto be 1.89 times to 2.07 times on average, and 8.57 times to 9.38 times on average between normal workers.

• 월간 기계설비
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• no.10 s.195
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• pp.35-37
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• 2006

2006년 상반기 건설업 전체 평균임금이 98,155월으로 전년 하반기 대비 1.9% 상승한 것으로 나타났다. 이 중 기계설비부문은 해외건설경기의 호조에 힘입어 플랜트제관공은 91,288원으로 상반기 대비 5.5%의 증가율을 보였고, 기계설치공이 79,538원으로 상반기 대비 3.5%의증가율을 보였다. 대한건설협회가 발표한 2006년 상반기 건설업 임금현황에 따르면 상반기 업종 전체 직종의 상당수를 차지하는 일반공사직종은 전체 직종 상승률 1.5% 상승 하였으며 동 직종 중 현장에 많이 투입되는 형틀목공, 철근공, 보통인부 등의 주요 15개 직종은 1.0% 상승하는데 그쳤다. 월급제 기능공이 대부분인 원자력직종은 5.0%의 상승률을 보인 반면, 광전자직종의 경우 0.4% 상승하는 등 전반적으로 전년도 하반기보다 임금상승률이 크게 둔화되고 있는 추세이다. 또한 임금이 가장 높은 직종은 294,659원인 송전활선전공으로 나타났으며, 반면 측부는 40,269원으로 가장 낮은 임금을 기록했다. 금번 임금실태 결과의 상승요인을 살펴보면 원자력 · 플랜트 · 지적 지종 등 월급제 기능공의 임금 상승이 전체 직종의 임금상승을 주도하였으며 물가 상승 및 임금인상 심리등으로 건설경이 위축에도 불구하고 건설업 임금이 소폭 상승하는 추세를 보이고 있다. 이번에 공표한 임금은 대한건설협회가 전국의 1,700개 건설현장의 건설관련 145개 직종을 대상으로 2006년 5월 한달간 실제 지급된 임금을 8시간 기준으로 조사한 것이다. 이번에 발표된 노임은 2006년 9월 1일부터 12월 31일까지의 공사에 적용된다. 다음은 설비건설부문과 관련 직종 노임단가 분석 및 개별직종 노임단가 현황이다.

• 월간 기계설비
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• no.2 s.199
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• pp.52-55
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• 2007

2007년 상반기 적용 건설업 임금실태조사(시중노임단가) 결과가 1월 1일자로 공포되어 적용에 들어갔다. 2006년 하반기 건설업 임금의 일일 평균임금은 9만6,343원에 비해 각각 1.7%, 3.6/% 상승한 것으로 나타났다. 건설 관련 145개 직종 중 104개 일반공사 직종의 평균임금은 전체 직종의 전반기 대비 상승률보다 0.1%포인트 낮은 1.6%였고, 특히 형틀목공, 철근공, 보통 인부 등 주요 15개 직종은 전체 직종 평균치를 웃도는 2.6% 상승함으로써 전체 임금상승을 이끌었다. 대한건설협회는 매년 상·하반기 2차례에 걸쳐 건설업 시중임금을 조사해 발표하고 있으며 이번에 발표한 임금은 전국의 1,700개 건설현장의 건설 관련 145개 직종을 대상으로 2006년 9월 한달간 실제 지급된 임금을 8시간 기준으로 조사한 것이다. 이번 임금 조사결과는 1월 1일부터 8월 30일까지의 건설공사 원가계산에 적용된다. 다음은 설비건설부문과 관련 직종 노임단가 분석 및 개별직종 노임단가 현황이다.

• Journal of Korean Society of Forest Science
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• v.112 no.2
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• pp.217-229
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• 2023

Forest projects often apply construction industry labor rates, without considering the demanding work conditions and labor intensity unique to forest operations, resulting in workplace issues. This study aims to analyze forest operations' characteristics and wage survey methods in other fields to establish a framework for surveying the wages of forest workers. The developed framework was tested through direct surveys conducted with all forest operation companies. Survey items included actual wages by occupation, identification and removal of outliers using quartile deviation, and occupation-based wage calculation. Results revealed that the appropriate wages for 2022 were as follows: KRW 163,376 for general workers, KRW 221,407 for special workers, KRW 250,045 for work leaders, and KRW 239,863 for wood cutters. These figures were 16.27% higher than those derived from the standard construction wage survey. The developed framework was validated by comparing the appropriate wages with both the standard construction wage survey and the forestry workers' wage. The results indicated that the wages calculated using the developed framework were 4.5% more similar to the forestry workers' wage compared with those from the standard construction wage survey. Consequently, the standard construction wage survey was deemed unsuitable for forest projects. To ensure efficient forest operations, it is imperative to conduct wage surveys using the developed framework over multiple years to accumulate sufficient data.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.675-684
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• 2020

To prevent safety accidents caused by aging pipe infrastructure and to maintain water quality, construction projects for water and sewage pipes are actively conducted across Korea. This study analyzed the criteria situations, site survey details, and regulation revisions related to the calculation of construction cost standards for pipe laying and joining work. The analysis showed that the major causes for revision are the unclear construction scope, limitations in implementing some pipe materials due to installation facility types, workforce focused on ordinary labor, limitations of manual laying work, and the lack of tool hire cost and machine expense-calculation criteria. Field studies were conducted to categorize the pipes according to their features, in addition to identifying the use of lifting heavy equipment and light equipment. In addition, excavation and testing work conducted in connection to pipe laying, as well as the use of skilled labor, were investigated. The current study clarified the work scope through new common items, provides an organization based on the pipe material, adjusted the workforce ratio to focus more on skilled labor, and developed grounds for calculating machine expenses. These revisions were estimated to save approximately 1.28% of the construction costs in each project according to an analysis of the construction cost impact study. truction costs in each project, according to an analysis of construction cost impact study.

• Journal of Korean Society of Forest Science
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• v.52 no.1
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• pp.37-49
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• 1981

The purpose of the study is to find out the objective method of valuation on the forest stands through the analysis of logging costs that is positively related to timber production. The two forest (Amgog, Whangryoung), located nereby, but forest type, logging and skidding conditions being slightly different, were slected to carry out the study. The objective timber stumpage value were determined by investigating the appropriate timber production costs and profits of logging operations. The main result obtained in this study are as follows: 1. The rate of logging cost in consisting of timber market price is 13.15% in the area of Amgog logging place and 19.48% in Whangryoung. 2. The rate of the other production cost excluding logging cost is 15.36% in the area of Amgog logging place and 28.85% in Whangryoung. 3. The total rate of timber production cost in consisting of the market price is more than 28.51% in the area of Amgog logging place and 48.33% in Whangryoung, 4. Though the productivity of forest land is affected by the selection of tree species, tending, treatments and effective management of forest land, the more important problem is improvement of logging condition. 5. The rate of production cost in timber price is so high that we should endeavore to improve the productivity of labour and its quality, and minimize the difference of piece work per day in accordance to the various site condition. 6. Although the profit of forest industry is related to the period of recapturing investment, it is more closely related to the working condition, risk of investment and continuous change of social investment interest. 7. If the right variables which are related to the timber market, are objectively obtained, the stumpage value of mature forests can be objectively caculated by applying straight line discounting method or compound discounting method in caculating the stump to market price.