• 대한토목학회논문집
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• 제41권6호
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• pp.745-750
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• 2021

최근 미세먼지에 대한 국민들의 불안감이 증가함에 비산먼지에 대한 관심이 증가하고 있다. 비산먼지는 도로재비산먼지 다음으로 건설현장에서 많이 발생하는데 이 중 대부분을 차지하는 소규모 현장은 비산먼지 관련 규정이 없어 제대로 된 관리가 이뤄지지 않고 있는 실정이다. 이에 본 연구에서는 소규모 현장 비산먼지 관리 규정 수립에 기여하고 비산먼지 저감방안을 마련하고자 서울시 소규모 현장에서 발생하는 비산먼지를 측정 및 분석을 진행했다. 소규모 현장에서 발생하는 비산먼지의 시간별 변동을 확인했고 담장과 난간 뒤에서 측정했을 때 상대적으로 농도가 낮은 것을 통해 비산먼지 저감방안으로 간이 펜스 설치 방안을 제시했다.

• 한국건설관리학회논문집
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• 제21권4호
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• pp.90-99
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• 2020

건설 산업은 중대 재해가 지속적으로 발생하고 있는 실정이다. 이러한 이유로는 많은 건설 현장의 작업이 고소작업과 옥외작업의 악천후의 작업과 같은 위험한 조건에서 수행되기 때문에 다른 산업에 비해 재해의 빈도와 강도가 심각하고, 이로 인해 안전사고에 노출된다. 소규모 건설현장은 사망재해의 위험이 매우 크지만 소규모 건설현장의 사망재해로 이어지는 다중 요인의 연구는 부족한 것으로 드러났다. 따라서 건설업의 사망재해를 줄이기 위해 본 연구에서 소규모 건설현장에서 발생한 1,438건의 사망재해 사례를 분석하고, 소규모 건설현장에서 치명적인 사고를 일으키는 10가지 요인으로 연관규칙 분석을 수행하였으며, 연관규칙 분석으로 나타난 결과를 기초로하여, 본 연구는 소규모 건설현장의 사망재해를 줄이기 위한 대책에 대해서도 논의하였다. 연구 결과에 대해서는 결과에 동의하는 전문가들에게 설명하여 인터뷰 형식으로 진행하였다. 본 연구는 소규모 건설현장 근로자를 위한 안전 정책 및 안전관리 이론에 기여 할 수 있다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1196-1202
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• 2007

In construction of high speed railway, the fan shape is limited to achieve reduction of required travel time and concrete railway which has structural stability and induces small maintenance cost with allowable ground settlement is recently applied. So construction of concrete railway on soft ground in which considerable ground settlement occurs increases and settlement management in soft ground section is required. Field monitoring on ground movement and integrated geotechnical information system which manages construction, design, and field monitoring data are essential for settlement management of concrete railway subgrade. Site investigation data are also required due to future repair work. Therefore in this study, integrated geotechnical information system for construction and maintenance of concrete railway is developed. The developed system consists of a database and an application program. The database contains site investigation, construction, design, and field monitoring data throughout a railway. Application program performs various functions on managing and utilizing information in the database with graphic visualization of output. And by providing integrating information with comprehensible visual displays, the applicability and effectiveness of the developed system for construction and maintenance management were confirmed.

• 대한안전경영과학회지
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• 제4권4호
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• pp.1-14
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• 2002

As domestic buildings have been large-scaled, diversified and high-rise, there have been a consistent demand for design, development of construction technology and accident prevention activity as well as quality enhancement. In spite of governmental and related institutions' efforts for reducing national losses which come from numerous accidents, there have been endless small and large accidents on the construction site and thus, it is urgent to conduct empirical researches in this area. Currently safety supervision system in construction industry has enforced harm and danger prevention planning system, however it merely stick to other existing materials. In addition, it is difficult to put it into practice in that it requires bearing too much burden to draw out the planning itself in a case of large construction work. Consequently in this paper we select evaluation criteria by construction progress, classify into several categories, and regard potential danger which often occurs, as a evaluation criterion. Further step is to allow workers or collaborated companies to express their expert opinions or experiences and to encourage quality and process control and autonomous safety control by applying PSM method. The reason why PSM method should be quantitative and substantial progress is because it contributes Korean constructing companies to enhancing their safety control ability and to taking an equal stance just like developed countries,' thereby strengthening there competitive edges. Boost of safety control system by PSM method will make an enormous contribution to preventing construction accidents on the site by establishing and securing an autonomous safety control system.

• 가족자원경영과 정책
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• 제9권1호
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• pp.131-146
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• 2005

The farming type in Korea is predominantly a small farm managed by family members. This study mainly examines the current usage of the website of family farms as a management tool for small farm business and discusses the strategies for effective utilization of the website. A county that currently employs governmental project of information system was purposely selected. Among all the websites operated by small farm businesses in that county, websites of which purpose is introduction of the business, advertisement, or e-business were included for analysis; it yielded total seven websites, The study was conducted with two phases; on-line website analysis and interview with business owners. The websites were analyzed based on four categories; content, interface, design, and site management. With regard to the content of the websites, the lack of connection between domain names and product names was found. Moreover, the problem relevant to site management was shown as low utilization of bulletin boards and delayed upload of new information. However, design and interface were comparatively well presented. Business owners reported that the motivation to initiate the websites was mostly supports from the governmental project for the agricultural information system. The barriers to effective management of websites were found i) business owner's misinterpretation of business website with e-business ii) very limited opportunity for website management education in small farm business, and iii) lack of regional infrastructure for information system. Based on the findings, this study suggests as followed; i) construction of infrastructure should be preceded to make effective management for websites; ii) education for website management should include small business management strategies as well as computer skills, iii) the education should be provided in diverse ways considering subject's characteristics iv) small farm business owners should be informed that their websites could play a role only to provide information about the products and hand over the practical load for e-business to retailing web sites such as portal shopping mall; and v) wives' participation should be encouraged.

• 한국건설관리학회논문집
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• 제12권6호
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• pp.14-21
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• 2011

모듈러 공법은 전체공정의 50%~90%를 공장에서 제작하여 이를 운반하여 현장에서 설치하는 공법이다. 이 공법은 현장에서 공정을 최소화하고 공장에서 작업을 극대화하여 공기를 단축하고 품질을 향상시킬 수 있다. 모듈러 공법으로 시공하면, 사용연한이 지나 건축물 철거시 일부 또는 전체를 재사용이 가능하기 때문에 건축폐기물까지 줄일 수 있는 친환경적인 공법이라고 할 수 있다. 이 모듈러 공법은 최근 수요가 증가하는 소형주택과 한국전쟁 당시 지어진 전방의 노후화된 병영시설의 교체에 적합한 공법이다. 경량철골을 사용한 모듈러 공법의 국내 시공 사례는 2003년 신기초등학교를 시작으로 군 병영시설에 확대 적용되고 있지만 아직까지 시장 초기단계이다. 따라서 범용 적으로 활용이 가능한 모듈 유닛의 표준과 공정의 표준정립이 시급한 상태이다. 본 연구에서는 기존 독신숙소의 신축 사례를 바탕으로 1인 숙소를 표준 모듈로 가정하고 모듈의 공장제작, 운반, 현장설치의 모듈러 공법의 최단 공사기간내의 최소 공사비 투입이 가능한 표준 공정을 제안하고자 한다. 공장에서 완성품을 제작하는 것이 가장 합리적이지만 운반시 하자발생을 감안한다면 공장제작비율 80%일 때 가장 합리적인 것으로 도출 되었다.

• 한국환경과학회지
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• 제7권3호
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• pp.383-392
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• 1998

Pollution characteristics of leachate and underground soul of the two landfill states were Investigated Domestic wastes were dumped In the two adjacent landfill states. Only small portion of S landifill site was filled with domestic wastes at the first stage of dumping, and most portion of the site was filled with construction wastes. However Y landfill strate was filed with mostly domestic wastes. Higher concentrations of organic pollutants including VOCs were measured In Y landfill site leachate than In S tendon site. Underground souls of the two linam states were analyzed by the two kinds of leaching methods, KEP (Korean Extraction Processl and Acid Digestion. Underground souls of the both landfill states were not polluted by leachates. Underground soils of the two were composed of firie salty material. Thus It Is fecund that fine silty soul layer of the sea shore may be used as a landfillsite.

• 한국지진공학회논문집
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• 제23권3호
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• pp.191-199
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• 2019

To calculate proper seismic design load and seismic design category, the exact site class for construction site is required. At present, the average shear-wave velocity for multi-layer soil deposits is calculated by the sum of shear-wave velocities without considering of vertical relationship of the strata. In this study, the transfer function for the multi-layered soil deposits was reviewed on the basis of the wave propagation theory. Also, the transfer function was accurately verified by the finite element model and the eigenvalue analysis. Three methods for site period estimation were evaluated. The sum of shear-wave velocities underestimated the average shear-wave velocities of 526 strata with large deviations. The equation of Mexican code overestimated the average shear-wave velocities. The equation of Japanese code well estimated the average shear-wave velocities with small deviation.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.1250-1251
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• 2022

Measuring management is an important part of preventing the collapse of retaining walls in advance by evaluating their stability with a variety of measuring instruments. The current work of measuring management requires considerable human and material resources since measurement companies need to install measuring instruments at various places on the retaining wall and visit the construction site to collect measurement data and evaluate the stability of the retaining wall. It was investigated that the applicability of the current work of measuring management is poor at small and medium-sized urban construction sites(excavation depth<10m) where measuring management is not essential. Therefore, the purpose of this study is to develop a laser sensor-based hardware to support the wall displacement measurements and their control software applicable to small and medium-sized urban construction sites. The 2D lidar sensor, which is more economical than a 3D laser scanner, is applied as element technology. Additionally, the hardware is mounted on the corner strut of the retaining wall, and it collects point cloud data of the retaining wall by rotating the 2D lidar sensor 360° through a servo motor. Point cloud data collected from the hardware can be transmitted through Wi-Fi to a displacement analysis device (notebook). The hardware control software is designed to control the 2D lidar sensor and servo motor in the displacement analysis device by remote access. The process of analyzing the displacement of a retaining wall using the developed hardware and software is as follows: the construction site manager uses the displacement analysis device to 1)collect the initial point cloud data, and after a certain period 2)comparative point cloud data is collected, and 3)the distance between the initial point and comparison point cloud data is calculated in order. As a result of performing an indoor experiment, the analyses show that a displacement of approximately 15 mm can be identified. In the future, the integrated system of the hardware designed here, and the displacement analysis software to be developed can be applied to small and medium-sized urban construction sites through several field experiments. Therefore, effective management of the displacement of the retaining wall is possible in comparison with the current measuring management work in terms of ease of installation, dismantlement, displacement measurement, and economic feasibility.

• International Journal of Advanced Culture Technology
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• 제12권3호
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• pp.396-405
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• 2024

This study analyzed the practical issues in the Serious Accident Punishment Act (SAPA) for construction sites and proposed measures to improve provisions that are detached from reality. The Act aims to prevent major accidents across various industries, with a particular emphasis on the construction sector. While the Act's intention is commendable, several significant legal flaws have emerged during its implementation. These issues were critically analyzed and strategic recommendations were proposed. Key issues include ambiguous legal definitions, the differential impact of the law on small and large businesses, and the increased administrative and managerial burdens. This study proposed specific measures to enhance the clarity of legal terminology and technology, balance the responsibilities between small and large businesses, and streamline administrative processes. Additionally, methods for effectively revising the regulations and reasonably complying with them on-site were proposed. By addressing these issues, we aim to improve the effectiveness of the law, ensure fair application, and ultimately create a safer working environment in the construction industry. The recommendations are expected to serve as valuable resources for future revisions and improvements to SAPA and contribute to the broader goal of sustainable industrial safety and development.