• Annual Conference of KIPS
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• 2013.05a
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• pp.776-777
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• 2013

디지털 수량산출정보 교환표준" 건설CALS/EC 체계 내에서 사용되는 공정 공사비 관리를 위한 디지털 수량산출정보 관련 표준의 기본 요건을 정의하고 참여주체간의 효율적인 수량산출정보의 교환 및 공유기반을 마련함을 목적으로 2011년 4월에 제정되었다. 해당표준의 활용성과 확장을 위하여 스키마를 추가 개발하며, 건설사업관리시스템과 연동하여 사업참여 주체간 정보공유와 관리가 가능하도록 하였다.

• Journal of Cadastre & Land InformatiX
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• v.51 no.2
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• pp.125-139
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• 2021

Continuous subway line expansion over the years in Seoul metropolitan area has contributed to improved accessibility to public transport. Since public transport accessibility has a significant impact on housing decisions, quantitative analysis of correlation between housing prices and public transport accessibility is regarded as one of the most important factors for planning better housing policies. This study defines the reduction of traveling time resulted from the construction of new metro stations despite them not being the closest stations as 'Network Expansion Effect', and seeks to understand how the Network Expansion Effect impacts on housing prices. The study analyzes monthly rent data converted from upfront lump sum deposit, so called Jeonse in Korea, from 2012 to 2018, through 'A Modified Repeat Sales Model.' As a result, the effect of 'Network Expansion' on rental prices in Seoul has stronger during the period of 2017 to 2018 than the base period of 2012 to 2014, which suggests the 'Network Expansion' has a meaningful effect on rent. In addition, in comparison between the most and the least affected group of apartments by 'Network Expansion Effect', the most affected group has more price increase than the least affected group. These findings also indicate that different levels of 'Network Expansion Effect' have various influences on the value of residential real estate properties.

• Journal of the Korea institute for structural maintenance and inspection
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• v.9 no.2
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• pp.103-112
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• 2005

This study examines the stability of Sungsu bridge which was issued nine years ago because of its collapse accident and now is on the progress of extension work in each construction stage by construction monitoring system. From this study, the measured value in each construction stage of anchorage truss and suspended truss shows the agreement with the analytical values up to 60~110 percents, and the elements' stresses emanating from the pre-loading stage, are also similar to the analytical value. Regarding these results, it is expected that each member has enough stiffness and the construction condition is satisfactory. In addition, it is expected that the transverse members and sway bracing bolts integrate completely the existing truss and new attached truss as a one body from the result of the vibration test to find out the integration rates.

• Explosives and Blasting
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• v.21 no.3
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• pp.37-48
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• 2003

김해 국제공항 2단계 확장 공사 중 구 국제선 청사 발파해체공사"는 5.5초의 기폭시차를 두고 약 7초간에 구조물의 붕괴를 유도하여, 단기간에 안전하며 최대의 효율을 낼 수 있는 발파해체공법을 적용하여 시공하였다. 이에 따라 발파해체공사의 공법, 공정, 세부 현황 및 결과, 발파공해영향권에 대해 분석, 평가 하였다. 구 국제선청사 구조물은 3층 높이로 저층 구조물에 해당하고 구조물의 특성상 Span 간격이 길고 충고가 높다. 또한 지반이 액상한계점 상태까지 도달하여 구조안전진단 결과 위험등급인 D등급으로 판정되었다. 본 대상건물과 같이 충고는 낮지만, 구조 안전성 측면에서 위험 요소를 가지고 있으므로 발파공법을 적용하여 해체를 실시하였다.

• Journal of the Korean Society of Hazard Mitigation
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• v.9 no.6
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• pp.41-49
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• 2009

Poor compaction of subgrade soil causes low stiffness and bearing capacity of sublayers so that faulting and differential settlements can be generated between new and old pavement surfaces in case of widening works. However, investigation of verifying the reason of producing the defects in the pavements are not performed in detail. In this study, several in-field tests including PMT and PBT were performed for obtaining stiffness of the sublayers in new and old pavements respectively of an widening project. Then, based on the obtained stiffness values and the measured deformations obtained by specially designed tilt meters, the main reasons of generating different deformations between the old and new pavement sections and the relationship between the deformation and stiffness are verified.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.7 no.1
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• pp.127-136
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• 2008

In these days, frequency of constructions on e freeway are increasing according as growing of the importance of e road maintenance and the road management. Work zone on the freeway where vehicles pass with high speed needs control method of lane closure and construction equipment. Because there are seldom researches in domestic study about reflecting characteristics of domestic road, sometimes we have applied for foreign cases to our traffic circumstance but it is not proper to apply for standard of other countries in our cases. foreign nation has different country square, condition of road, and level of people mind. Therefore, this study shows traffic accident characteristics in freeway work zones in Korea. At first, this study collected traffic accident data which include for 3 years $2003{\sim}2005$ in the whole freeway in Korea and then divided the data to five parts - level of the accident, type of the construction work, type of the accident, reason of the accident, according to geometric. According to comparing with non-work zones accident, this study found traffic accident characteristics in freeway work zones in Korea and suggested some alternative ideas for safety of work zones.

• 한국도로학회지:도로
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• v.16 no.3
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• pp.33-40
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• 2014

• Proceedings of the Korean Fiber Society Conference
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• 1998.04a
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• pp.152-155
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• 1998

지반 보강에 주로 이용되는 지오그리드(geogrids)는 1980년대에 개발되어 다양한 제품으로 발달하여 왔으며, 지오그리드의 높은 인장강도에 의해 기존에 지오텍스타일(geotextiles)이 적용되었던 분야의 대체재로써 그 용도가 확장되고 있다[1,2]. 독립형 보강토 조립식 옹벽의 보강재로써 사용되는 지오그리드는 높은 인장강도, 높은 전단강도와 인발저항을 가져야 한다.(중략)

• 정보화사회
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• s.128
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• pp.68-70
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• 1999

두림라인 (주)는 전국적인 링형 망구성의 광통신 기간망 보유, 국내 최초로 공중망에서 B-ISDN (ATM over SONET) 서비스 제공, HFC기반 케이블모뎀을 통한 전국적인 상용화 서비스 1999년내 실현, 한국도로공사의 고속도로 완공과 궤를 같이하여 2005년내 전국 방방곡곡 8개 링형 망구조 확장 등 통신망 부분에 있어서는 21세기 최고의 광통신망 사업자로 발돋음한다는 야심찬 꿈을 키워가고 있다.

• The Magazine for Energy Service Companies
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• s.16
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• pp.22-25
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• 2002

한국가스공사의 자회사로서 천연가스의 생산, 공급설비를 전문으로 취급하는 한국가스기술공업㈜는 지난 7년여동안 고도의 가스설비 전문기술력 배양을 위해 집중적 투자와 교육훈련을 실시해 왔으며, 기술경쟁력 강화와 경영혁신운동 추진으로 세계적인 에너지설비 기술서비스 기업으로 거듭나고자 한다. 더욱이 조명과 인버터에 치중해있던 ESCO사업 분야도 GHP와 CES로의 확장을 모색하는 등 발길이 분주하다.