• Proceedings of the Korean Institute of Building Construction Conference
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• 2020.06a
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• pp.165-166
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• 2020

The standard for the cost calculation in the field of domestic construction engineering can be largely divided into the construction cost ratio method and the actual cost addition method. However, the standard for calculating the cost of the construction cost ratio method is a trend to switch to the actual cost addition method due to limitations such as not reflecting the characteristics of the construction. Therefore, this study aims to derive implications by investigating and analyzing examples of cost standards in the field of overseas construction engineering, such as the United States, and deriving directions for improvement in domestic cost standards in the future.

• Journal of the Korea Institute of Building Construction
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• v.13 no.5
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• pp.441-448
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• 2013

In recent years, the number of female workers pursuing careers in the construction engineering and management field has increased, despite the fact that the job positions have been traditionally considered as retaining job functions and/or qualities that are more appropriate to male than female. This may be attributed to the fact that the positions also require delicate and/or detail-oriented job functions, which can be successfully performed by female. It is important for project participants to understand the working conditions for female field managers by analyzing their job performance. This study collects expert opinions regarding female's managerial performance on job site. Survey questionnaires were administered to two focus groups, male and female field managers who work for general contractors. This study contributes to encouraging female's social and economic involvement by investigating the challenges they face in the workplace, and provides measures to respond to such challenges.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.925-928
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• 2007

As the field report data does not normalize, ordering organization requires different form every time and field reporters make out form as random, data and report to the ordering organization by different medium such as FAX, e-mail, paper document. Therefore, Field reporters must set and make out same information in required pattern. And ordering organization is being responsible for side works of totalizing and processing the reported data. This research suggests the electronic document unification about monthly construction progress report and construction present condition report system. In addition, it suggests electronically processing function that can handle field report business to unifying electronic documents. As using the result of this research, it will improve the work efficiency and simplify in report business.

• Journal of the Korea Institute of Building Construction
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• v.17 no.1
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• pp.91-100
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• 2017

The safety management is one of important factors. However, the satisfaction of safety manager is lowering. Therefore, this study focuses on comparing the impact that working conditions have on the job satisfaction of field and safety manager in construction field. The results of in this study, the basic wage, medical care, and leisure activity were analyzed as a positive impact on job satisfaction. In addition, the comparison result of the field manager and safety manager showed that safety manager appeared to be a greater impact on the basic wage than the field manager. Also, this study showed that the medical care and leisure activity have a positive impact on the job satisfaction of field manager, but the industrial accident and accommodation facility have a positive impact on the job satisfaction of safety manager.

• Korean Journal of Construction Engineering and Management
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• v.22 no.1
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• pp.63-71
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• 2021

The construction guarantee market is a rear market affected by changes in the construction industry and market. As the restructuring of the construction industry's production system is being carried out, such as the abolition of regulations on business field between general and specialty contractors, major changes are expected not only in the construction market but also in the construction guarantee market. In construction guarantee market, there are currently three Contractor Financial Cooperatives, which are divided based on business field and business type(General, Specialty and Plant & Mechanical). The abolition of business field regulation will have various effects on construction guarantee market, such as forming a competitive structure among the three Contractor Financial Cooperatives. Therefore the role of the construction guarantee institutions are also required to change. This study predicted the changes in the construction guarantee market after the restructuring of construction industry and analyzed the ripple effect on the market. This study reviewed the details of the reorganization plan on the construction industry, policies and statistical data related to construction guarantee, and lastly conducted the survey on each member of the three Contractor Financial Cooperatives to analyze the usage behavior in the future guarantee market. Based on the result of this study, the members of both the General Contractor Financial Cooperative and Specialty Contractor Financial Cooperative are not willing to change the existing institutions, but a lot of them are expected to use other institutions in duplicate. The members of the Plant & Mechanical Contractor Financial Cooperative are most willing to use other guarantee institutions.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2009.04a
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• pp.302-309
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• 2009

Nowadays, the construction sites are growing in city every year, so complaints for construction noise have increased more and more. To analyze this noise scientifically, construction noise prediction program was developed in 1998 and 2005 but it is too difficult to apply program in field because there is few soundproof facilities and it can't understand the coordinate system and so on. The aim of this study is to develop noise prediction program to apply in construction sites. For this, the problems of existing program was analyzed and survey was performed to get requestion of field overseer and upgraded program. To get reliability of program, it was compared with sound measurement value in field. As a result, construction sound prediction program have various soundproof facilities data than existing program. It can also analyze multi receiver point at the same time for several construction machinery. Most of all, it is more powerful to set receiver or source in the axis of X, Y, Z. so program user can make use of it easily. An average of difference is -0.9$\sim$1.8dB.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.19 no.4
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• pp.409-417
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• 2009

Nowadays, the construction sites are growing in city every year, so complaints for construction noise have increased more and more. To analyze this noise scientifically, construction noise prediction program was developed in 1998 and 2005 but it is too difficult to apply program in field because there is few soundproof facilities and it can't understand the coordinate system and so on. The aim of this study is to develop noise prediction program to apply in construction sites. For this, the problems of existing program was analyzed and survey was performed to get requestion of field overseer and upgraded program. To get reliability of program, it was compared with sound measurement value in field. As a result, construction sound prediction program have various soundproof facilities data than existing program. It can also analyze multi receiver point at the same time for several construction machinery. Most of all, it is more powerful to set receiver or source in the axis of X, Y, Z. so program user can make use of it easily. An average of difference is -0.9~1.8 dB.

• Proceedings of the KSR Conference
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• 2007.11a
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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.

• Korean Journal of Construction Engineering and Management
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• v.7 no.4 s.32
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• pp.164-176
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• 2006

Conflict may occur during teamwork activities. Conflict is the incompatibility of interest of participants; hence, it is more common in a wide varied activities involved construction field. Goals and values involve positive or negative features and are therefore common sources of conflict in construction field. Excessive conflict is a major hindrance to the effective operation of a team. If the conflict is not managed timely and properly, it could be transformed into a big dispute, thus to avoid these situation, it is necessary to augment working together culture. This paper aims to identify project team working factors and to uncover underlying relationships between these factors. A questionnaire survey was used to collect data from professionals. Factor analysis was employed to categorize twenty-one teamwork items evaluated by 169 respondents working in three major construction parties namely, owners, consultants and contractors. Factor analysis uncover that these team work factors can be grouped under three categories titled as: integrative working culture, relationship building and trust building. Multiple regression analysis however, showed that relationship building factor does not influence job satisfaction of project participants. Results of this study can be used as a tool to strengthening relationship between project participants in the construction industry.

• International journal of advanced smart convergence
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• v.10 no.3
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• pp.245-256
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• 2021

This study is significant in determining the reduction of safety accidents by applying PDCA's theory by subdividing it into a case analysis technique for construction sites by PDCA's theory. For this study, accidents accounted for the largest proportion of each type of disaster in the construction site were considered, and safety accidents were reduced through the PDCA theory through prior research. The analysis method of this study derived improvement plans by applying PDCA techniques to plan, implement, confirm, review, and improve disaster accidents at construction sites. The conclusions of this study are as follows. In the plan, first of all, measures shall be taken to prepare a safety management plan, to verify the implementation of the plan, and to verify the degree of implementation by the field manager. In the implementation, first of all, it is necessary to introduce a safety education history system to strengthen the safety education curriculum to suit the site, as long-term work is impossible for field workers depending on field conditions. First of all, it is necessary to strengthen the installation of safety facilities, including "work scaffolding" and "conducting prevention facilities" at construction sites. In management review and improvement, the risk assessment system for construction sites needs to be expanded first°.