• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 춘계학술대회 논문집
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• pp.326-330
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• 2003

The purpose of this study was to develop railroad geotechnical management system using Web GIS and the DB used in system included railroad informations and digital maps. Digital maps are primarily based on a topographical map(NGIS, 1:5000) and by adding digital maps(KRRI, 1:5000) and their spatial database system to NGI code layer, the management system was developed. The system was connected to geotechnical database already developed. The system was able to separate three parts which were layer choice, geotechnical information view and geotechnical analysis and it was possible to save geotechnical and spatial informations using ZEUS DB simultaneously. ZEUS/X was used for usefulness of GIS operation and by offering GUI, user interface for facility was achieved. Geotechnical and spatial informations in this system will provide basic data for plans, design and construction of railway lines in practical use.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 춘계학술대회
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• pp.613-616
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• 2007

The main structures that comprise a tidal power plant are turbine structure, sluice structure, tide embankment and gate. Since these structures are founded on seabed ground, an extensive geotechnical site investigation to evaluate the engineering properties of field soils must be conducted prior to design and construction. According to the results of geotechnical site investigation conducted at the planned site for construction of Incheon bay tidal power plant, soft ground generally lie 7 meters below the seabed surface level. This research suggests the reliable and economical design of foundations and ground improvements required for construction of main structures in Incheon bay tidal power plant, with considerations on field conditions.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1993년도 지하공간 건설기술에 관한 서울 심포지움 논문집
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• pp.235-247
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• 1993

The 62 m span Olympic lee Hockey cavern in Gjovik, Norway, is located in jointed gneiss of average RaD = 70% and has a rock cover of only 25 to 50m, thus posing challenging design p problems. The investigations prior to construction included two types of stress measurements, cross-hole seismic tomography, special coe logging, Q-system classification and numerical modelling with UDEC-BB. Predicted maximum deformations were 4 to 8 mm; surprisingly small due to the high horizontal stresses recorded. Extensometer (MPBX) installations from the surface prior to construction, precision surface levelling and MPBX installed from inside the cavern give a combined measure of maximum deformations in the range 7 to 8 mm with the 62 m span fully e excavated, and three adjacent caverns for the Postal Services also completed.

• 한국지반공학회지:지반
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• 제26권9호
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• pp.33-47
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• 2010

Underground constructions continue to provide challenges to Geotechnical Engineers yet they pose the best opportunities for development and deployment of advance technologies for analysis, design and construction. The reason for this is that, by virtue of the nature of underground constructions, more data and information on ground characteristics and response become available as the construction progresses. However, due to several barriers, these data and information are rarely, if ever, utilized to modify and improve project design and construction during the construction stage. To enable the use of evolving realtime data and information, and adaptively modify and improve design and construction, the paper presents an analysis and design system, called AMADEUS, for underground projects. AMADEUS stands for Adaptive, real-time and geologic Mapping, Analysis and Design of Underground Space. AMADEUS relies on recent advances in IT (Information Technology), particularly in digital imaging, data management, visualization and computation to significantly improve analysis, design and construction of underground projects. Using IT and remote sensors, real-time data on geology and excavation response are gathered during the construction using non-intrusive techniques which do not require expensive and time-consuming monitoring. The real-time data are then used to update geological and geomechanical models of the excavation, and to determine the optimal, construction sequences and stages, and structural support. Virtual environment (VE) systems are employed to allow virtual walk-throughs inside an excavation, observe geologic conditions, perform virtual construction operations, and investigate stability of the excavation via computer simulation to steer the next stages of construction.

• 한국지반공학회지:지반
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• 제33권5호
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• pp.25-33
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• 2017

• 한국지반공학회지:지반
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• 제26권4호
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• pp.33-40
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• 2010

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.134-137
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• 2008

• 한국지반환경공학회 논문집
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• 제14권3호
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• pp.35-40
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• 2013

일반적으로 동결대상지역에 설치되는 지반구조물은 동결피해에 대한 별도의 대책을 필요로 한다. 그러나 국내의 경우 터널, 옹벽 등과 같은 지반구조물에 대한 동결피해 조사 및 사례보고가 거의 이루어지지 않고 있어, 이를 저감시키기 위한 연구는 매우 미미한 실정이다. 이러한 이유로 국내의 구조물 관련 설계기준도 특별하게 이를 규정화하고 있지 않다. 본 연구에서는 터널, 비탈면, 옹벽의 동결피해에 대한 현장조사 및 1종, 2종 시설물에 대한 약 40여 년간의 지반구조물 유지관리 이력을 분석하여 구조물 설치지역의 기온에 따른 구조물의 유지관리 특성을 파악하였다. 그 결과 우리나라에서 동결깊이가 약 120cm 이상이고, 기온이 비교적 낮은 강원 산간지역 및 강원 북부, 경기 북부지역의 지반구조물은 기온이 비교적 따뜻한 타 지역과 달리 훨씬 더 오랫동안 보수보강을 필요로 하는 것으로 분석되었다. 이로부터 국내 동결피해 대상지역에 설치되는 구조물에 대한 설계기준 개정의 필요성을 제안하였다.

• 한국지반공학회논문집
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• 제15권3호
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• pp.151-160
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• 1999

암반 근입말뚝의 설계기준은 일반적으로 침하량 기준을 사용하므로 설계단계에서 암반근입말뚝의 하중-변위$(\sigma-\sigma)$ 거동을 잘 이해해야 하나 그 거동의 복잡성으로 인해 하중-변위 거동을 파악하기가 어렵다. 이를 위해 먼저 현장타설 콘크리트 말뚝에 대해 현장재하시험을 실시하여 그 결과로부터 암반 근입말뚝의 하중-변위 거동을 고찰하였고, 상용 프로그램인 ELAC을 이용하여 하중-변위 곡선의 형상에 큰 영향을 주는 입력변수를 변화시켜 가며 말뚝의 하중-변위 관계를 모사하였다. 최종적으로 수치해석 입력데이터와 현장 지반조사결과의 관계를 일반화함으로써 지반공학자가 설계단계에서 적절한 현장데이터를 이용하여 하중-변위 거동을 예측할 수 있도록 하였다.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 세계 도시지반공학 심포지엄
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• pp.785-789
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• 2009

It is essential to carry out appropriate site investigations for the accurate prediction of the geo-structure. However, the importance of the site investigation is often overlooked due to the time and expense constraints. In this study, several cases of geotechnical design perfromed in United States are introduced with the lessons about how the site investigations are planned, performed and applied for the actual design parameter determination. Based on the case studies presented herein, experienced geotechnical engineer should participate in site investigations from the planning stage through the final boring logs and utilize all the laboratory and field tests to have consistent input parameters for the soil constitutive models. Furthermore, it is also desired to have close relationship between construction industry and the academia to compensate their needs.