• Magazine of korean Tunnelling and Underground Space Association
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• v.25 no.4
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• pp.20-36
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• 2023

• Tunnel and Underground Space
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• v.15 no.3 s.56
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• pp.177-184
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• 2005

The Sapaesan tunnel, the longest twin tube tunnel (4km) in Korea with 4 lanes each, is under construction with two years of delayed schedule because of the strong opposition from environmental bodies. Therefore, maximizing the construction efficiency was needed in tunnel project to compensate for time delay. This study includes improvements in the construction of the Sapaesan tunnel such as increasing excavation length and changing excavation sequence. In this paper the system for predicting tunnel face ahead is also introduced. Bulk-Emulsion explosive and Cylinder-Cut method were adopted in tunnel blasting to increase the excavation length. Optimum tunnel excavation step was designed to make up delayed time. Tunnel foe mapping, TSP survey and geological prediction system using computerized jumbo-drill were performed fnr safe construction of long and large twin tube tunnel.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2006.04a
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• pp.259-262
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• 2006

본 연구는 지하처분연구시설(URT : Underground Research Tunnel)시설 건설공사와 관련하여 굴착 후의 지하수유동체계 변화를 예측하기 위하여 수행되었다. 지하수유동체계 모사를 위해 사용된 모델은 연속체 매질 개념의 Visual Modflow이며, URT 주변의 시추공에서 조사된 자료를 초기 입력자료로 이용하였다. 1단계 터널굴착 후에 계측된 지하수위 및 터널 내 지하수 유입량을 토대로 모델교정을 수행하였고, 교정된 모델을 이용하여 2단계 터널굴착 후의 지하수유동체계를 예측하였다. 1단계 굴착 후 약 4.3m의 수위강하가 발생한 KP-2번공은 2단계 굴착 후에는 약 0.05m의 수위강하가 예측되었다. 또한 2단계 굴착 후의 지하수위는 터널 입구를 기준으로 약 108m지점부터 터널 종점부 175m까지는 터널 상부에 분포하며, 종점부 175m지점에서는 지하수위가 터널 천장(roof)부로부터 약 12.7m 상부에 위치하는 것으로 예측되었다. 지하수위의 강하범위는 터널 중심부로부터 반경 약 300m까지 발생되는 것으로 예측되었고, 예상 지하수 유입량은 24.7ton/day로 1단계 공사 후보다. 약 2.7ton/day 증가하며, 공동굴착 전 터널 중심부의 지하수가 지표까지 도달하는 시간은 약 39.8년이 소요되는 것으로 나타났다.

• Korean Journal of Construction Engineering and Management
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• v.12 no.2
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• pp.12-20
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• 2011

Recently, construction site scale has been growing larger along with the growth of national economy. As construction market requires time reduction, cost saving, and improving quality, a cutting-edge technology applied research has been gradually studied for more efficient project management. In particular, the Real Time Location System (RTLS) technology, a real-time location tracking system of construction resources, can be effectively used in safety management. This technology has been studied and applied in various industries including architectural, marine, urban, and other industries. However, although tunnel construction in civil engineering has a narrow space and many safety risks, there are not researched about this content. Therefore, this study proposes an advanced safety management model for tunnel construction using the RTLS technology and a measurement method of the feasibility of this model in the construction site.

• Journal of Korean Tunnelling and Underground Space Association
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• v.24 no.6
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• pp.725-744
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• 2022

As the construction of infrastructure using the underground tunnel in urban area have been rapidly increased, various accidents and collapses of tunnel including structure have been occurred in deep urban tunnelling. The concern and worry relating to the risk and safety of the tunnel during excavation is becoming the key issues in deep urban tunnelling. In this study, it was conducted for deep urban tunnel at GTX (Great Train Express) line which was located in Seoul metropolitan area to determine the risk characteristics for tunnel according to urban tunnelling. Also, it was reviewed the risk analysis and evaluation of the tunnel, shaft and station. And after a review of risk analysis and evaluation for risk register and hazard identification by using a risk matrix method, safety management of the tunnel according to excavation was evaluated to be secured. This study is expected to be applied as useful approach in deep urban tunnelling if you need to review the risk and safety management system of tunnel according to mitigation measures in complex urban tunnelling.

• Journal of Korean Tunnelling and Underground Space Association
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• v.19 no.6
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• pp.985-997
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• 2017

In many countries, most of the tunneling works have been ordered by the shield TBM, and also Korean companies are actively bidding and execute in this project. In case of Korea, refurbished machines are mainly using in power cable, gas pipelines, and water and sewage tunnel. Also in metro projects, shield TBM of over diameter 7m is required mainly by using brand new machine. Since the shield TBM is not easy to change once it is produced, it is necessary for the client to provide sufficient information on the production conditions so as to satisfy various characteristics of the construction. In this study, to manufacturing optimal shield TBM, the Client's TBM requirements of tunnel construction in Hong Kong and UK was analyzed and compared with the domestic requirements. The results are expected to provide as client's guidelines for bidding stage and manufacturing for shield TBM tunneling in Korea in the future.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 1999.11a
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• pp.234-239
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• 1999

도로터널 조명설비의 합리적인 설계로 도로터널의 안전한 교통운행 확보와 쾌적한 운전 환경을 위하여 Computer Simulation Program을 이용한 최적의 터널조명환경을 조성하고 그 결과를 분석·검토하여 설계에 적용하고 조명설비 공사에 반영하며, 발생하는 문제점과 그 대책을 제시하고자 한다.

• Magazine of korean Tunnelling and Underground Space Association
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• v.25 no.2
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• pp.27-40
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• 2023

• Geotechnical Engineering
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• v.35 no.5
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• pp.8-24
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• 2019

• The Safety technology
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• no.163
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• pp.12-14
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• 2011

(주)한양의 고속국도 60호선 동홍천~양양간 16공구 현장이 위치해 있는 강원도 양양군 서면 범부리. 이곳은 겨우 39가구가 옹기종기 모여 사는 산골마을로, 높은 산 위에서 마을을 내려다보면 범선모양으로 생겼다하여 '범부리'라는 이름을 붙었다고 한다. 명당으로 꼽는 배산임수의 지형을 갖춘 이곳을 옛 동네어른들은 '큰골'이라 칭할 정도로 높은 애향심을 보였다. 그런 이 범부리에 2015년까지 교량1개, 터널2개, 터널관리동 1개소를 짓는 다는 대규모 토목공사계획이 2008년 발표됐다. 지역민들의 반대가 극심했다. 지역민들은 '범선모양의 마을 동산에 터널을 낸다는 것은 곧 배에 구멍을 뚫어 배를 가라앉게 만드는 행위"라며 공사의 진행을 완강히 저항했다. 현장 임직원들은 공사를 시작도 못하고 지역민들의 마음 돌리기에 매달렸다. 대화와 설득의 과정이 반복됐고, 현장 임직원들은 농기구를 고쳐주는 등 외지인이 아닌 이웃으로 다가가고자 노력했다. 그 결과 지역민들의 마음을 얻을 수 있었고, 어렵사리 공사가 진행됐다. 힘들게 시작한 공사에서 사고가 발생한다면 지역민들의 원성이 다시 커질 터, 김태희 현장소장을 비롯한 모든 현장 임직원은 '완벽하지 않다면 안전하다고 말할 수 없다'는 각오로 안전활동을 펼치기 시작했다. 그로부터 2년 반이 지난 지금, 이곳 현장은 지역을 넘어 전국에서도 손꼽히는 우수한 안전현장으로 우뚝 섰다.