• 월간 기계설비
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• no.11 s.208
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• pp.53-61
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• 2007

건설공사 하도급계약의 투명성을 제고하기 위해 하도급공사정보망이 구축돼 올해 말 본격 가동에 들어갈 예정이다. 건설교통부는 불법하도급을 뿌리 뽑기 위해 하도급 관련사항을 실시간으로 파악, 원.하도급 계약과정의 투명성을 확보하기 위해 건설산업정보망 내에 하도급공사정보망 구축을 추진하고 있다. 하도급공사정보망은 건설산업정보망의 일부분으로 일괄하도급, 덤핑입찰을 일삼는 부실업체를 퇴출시키고 견실한 건설업체는 출혈.저가경쟁 없이 시공에만 전념할 수 있도록 하기 위해 건교부가 지난 2005년부터 지속적으로 보완.구축 중인 야심작이다.

• Proceedings of the Korean Geotechical Society Conference
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• 1998.04a
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• pp.1-19
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• 1998

지반을 조사하여 설계하는 경우에 합리적이고 경제적으로 설계가 되게 하기 위해서는 지반조사가 철저하고 정밀하게 수행되어야 한다. 충분한 지반조사 자료가 제공되어야만 건실한 설계가 이루어 질 수 있으며 부실 설계를 사전에 예방할수 있다. 뜻하지 않은 붕괴현상을 최소화 할 수 있개 하기 위하여 지반조사 시행과정에서 지반조사 기준에 좀더 세부적으로 보완하였으면 하늘 부분을 제안하고자 한다.

• 월간 기계설비
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• no.7 s.204
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• pp.34-38
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• 2007

건설공사 하도급계약의 투명성을 제고하기 위해 하도급공사정보망이 구축돼 올해 말 본격 가동에 들어갈 예정이다. 건설교통부에 따르면 불법하도급을 뿌리 뽑기 위해 하도급 관련사항을 실시간으로 파악, 원.하도급 계약 과정의 투명성을 확보하기 위해 건설산업정보망 내에 하도급공사정보망 구축을 추진하기로 했다. 하도급공사정보망은 건설산업종합정보망의 일부분으로 일괄하도급, 덤핑입찰을 일삼는 부실업체를 퇴출시키고 견실한 건설업체는 출혈.저가경쟁 없이 시공에만 전념할 수 있게 하기 위해 건교부가 지난 2005년부터 지속적으로 보완.구축중인 야심작이다.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.356-359
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• 2006

Dispute is construction itself. Serious difficulties ore occurred between contract parties when These disputes have occurred. Authority may fear the defective work if the requirement of contractor is fully reflected in the adjustment of contract. On the other hand the contractor may have fears that no payment or some payment of the extra work or the additional work done will be required. Therefore these problems must be resolved before these result in an enlarged riffle effect. To reduce the fear of the contract parties, ADR(Alternative Dispute Resolution) process were suggested.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.05a
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• pp.168-169
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• 2014

Construction Technology Service is currently hardly managed due to failure to offer standard management system of service performance, company performance, and business evaluation in every Ordering Agencies. After Construction Technology Promotion Act is enforced in May 2014, Ordering Agency obligates them to report to Minister of Land and Transportation within 10 days upon contract/ amendment/ completion. In 2013, in advance to enforcement of this law, performance management system for construction technology service was developed for a test run. However this system only applies to main contractors while management and operation of subcontractors are unavailable that causes problems on connection and integration with Experience Management Trustee. Therefore, this research will establish systematic foundation that enables real-time information of service performance and evaluation of subcontractors to result standardization of performance and evaluation for public ordered services.

• Journal of the Korea Concrete Institute
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• v.28 no.5
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• pp.601-609
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• 2016

Recently, extreme climate change has been occurring globally not only in the simple form of temperature increases but also in a wide range of extreme climatic events, such as abnormal drought conditions and frequent typhoons. In addition, climate change is delaying the construction period of concrete structures, increasing related economic losses. Forcing construction projects for completion without considering climate change is leading to concrete quality deterioration, poor quality constructions, and consequent casualties and property damage. Therefore, to address these problems and provide a countermeasure to climate change, the present study selected wind speed, and sunlight exposure time as the most important curing conditions among the climate factors affecting concrete structures and examined their effects on the curing and durability of concrete structures. In addition, for the analysis of the experimental results, this study proposed a process of performance based evaluation (PBE) of concrete strength and durability using a method of Satisfaction Curve (SC) generation.

• Analytical Science and Technology
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• v.24 no.2
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• pp.85-93
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• 2011

To protect the steel structure in a high story buildings from fire, the sprayed fire-resistive materials are applied during the construction. Current standard methods to check the quality of sprayed fire-resistive materials are real fire test in lab, which take a long time (several weeks) and expensive. In this study, a simple analytical method to check the quality of sprayed fire-resistive materials is developed using Near Infrared Spectroscopy (NIR). Total 9 kinds of sprayed fire-resisted materials and 3 kinds of normal sprayed material sets were used for the analysis. Each set of materials was 50 to 100 samples. Samples are grinded and make a fine powder. The spectral data acquisition was carried out using FT-NIR spectrometer with a integrating sphere. NIR methods successfully identify the sprayed fire resistive materials by a principle component analysis (PCA) after a vector normalization (SNV) pretreatment.

• Journal of the Korea Organic Resources Recycling Association
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• v.28 no.2
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• pp.31-40
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• 2020

As private sewage treatment facilities in Korea are constantly concerned about the distribution and poor construction of defective products, minimum standards for each unit process applicable to the planning and design of sewage treatment facilities are deemed necessary. The problems and requirements of the analysis results of the operation status discussed in this study are as follows. 1) Strengthening education of supervisor of private sewage treatment facility. 2) Poor operation and management of Sewage treatment facilities. 3) A mandatory review of sewage treatment facilities for less than 2 ㎥/day of facilities other than sewage treatment zones. 4) Necessity of management of sewage treatment facility in feedstocks. 5) As a result of the technical review, Improvement plans for Ineligible facility are needed. It is also necessary to prepare a guidebook for design construction and maintenance by investigating and analyzing guidelines and data related to domestic and foreign private sewage treatment facilities.

• Korean Journal of Construction Engineering and Management
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• v.14 no.1
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• pp.91-100
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• 2013

Current environment in civil and construction industry has changed to actively adopt construction management (CM) in various areas. While it is found that exemplary CM projects have been carried out in many civil engineering sectors, concrete system framework has not been suggested due to ambiguous boundary between CM and supervision system, unclear perception of CM's role, and inexperienced organization and regime. This paper investigated the challenges faced in civil and construction industry, and analyzed the strategy that could improve the current immature CM system by conducting questionnaire survey from experts in various construction sectors. The results could provide valuable information that can involve diverse opinions and view points in project participants.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.557-562
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• 2008

In Korean construction industry, a public sector's ordering volume has been constantly increased after 2000. But, because a cost, schedule and quality control generally depends on a result-centric management form and a transparent management is not done during the construction in the Korean public business, it is recognized that this causes problems including an increase of cost and schedule, incomplete construction, a difficulty to find the problem in advance to establish measures, and an unclear locus of responsibility of constructor, supervisor and designer. Accordingly, this study is intended to derive the problems and the limit of management by identifying and analyzing the management state of the present government construction client for the client organization of public sector's government construction. Also, the study is intended to contribute to the client's efficient and actual project management by presenting the model of supplementing or improving the derived problem and limits to the client's organization.