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2026 Vol.36, Issue 4

Case Study

A Case Study on Construction Scenario Analysis and Planning for the Taebaek Underground Research Laboratory using 5D BIM

5D BIM을 활용한 태백 지하연구시설(Underground Research Laboratory)의 시공 시나리오 분석 및 시공계획 사례연구

Kyung-Kyu Park1
,
Seong-Jin Ahn1
,
Hyung-Mok Kim2
,
Young Su Sohn3
,
Ji Hyun An4
,
Kyung-Ho Lim5
,
Eui-Seob Park6
,
Jung In Kim7*
박 경규1
,
안 성진1
,
김 형목2
,
손 영수3
,
안 지현4
,
임 경호5
,
박 의섭6
,
김 정인7*
1Master’s Student, Department of Energy Resources and Geosystems Engineering, Sejong University
2Professor, Department of Energy Resources and Geosystems Engineering, Sejong University
3Director, BCMP Co., Ltd
4Manager, BCMP Co., Ltd
5Vice President, BCMP Co., Ltd
6Principal Researcher, Korea Institute of Geoscience and Mineral Resources
7Professor, School of Civil and Environmental Engineering, Kookmin University
1세종대학교 에너지자원공학과 석사과정
2세종대학교 에너지자원공학과 교수
3㈜ BCMP 상무
4㈜ BCMP 과장
5㈜ BCMP 부사장
6한국지질자원연구원 책임연구원
7국민대학교 건설시스템공학부 교수
*Corresponding Author
31 August 2026. pp. 313-326
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Abstract

The Taebaek Underground Research Laboratory is planned as a large-scale underground facility for validating deep geological disposal technologies, in which access configuration and excavation sequence significantly affect construction duration and cost. This study developed a three-dimensional BIM model using publicly available conceptual planning information and linked the BIM objects with a work breakdown structure, schedule activities, and unit-cost data. Three alternatives were analyzed by varying the shaft excavation sequence and the use of an inclined access tunnel. The estimated construction durations were 37.0, 34.5, and 43.0 months, while the direct construction costs were 72.64, 72.64, and 93.87 billion won, respectively. Alternative 2 reduced the duration by 2.5 months through schedule rearrangement, whereas Alternative 3 increased both duration and direct cost because of the long inclined rampway. The results demonstrate the applicability of 5D BIM to integrated geometry, schedule, and cost evaluation at the planning stage and provide an initial information base for future data integration. It should be noted that construction duration and direct construction cost presented in this study were estimated under general design and construction conditions, and these results may vary depending on site-specific geological and geotechnical environments, detail design specifications, and construction practices.

Keywords
5D BIM
Underground research laboratory
Shaft
Rampway
Construction simulation

태백 지하연구시설은 고준위방사성폐기물 심층처분기술을 실제 심부 암반환경에서 연구하기 위한 대규모 복합 지하시설로, 다수의 수직구와 심도별 수평터널이 입체적으로 연결되므로 진·출입시설의 구성과 굴착순서가 전체 공사기간과 공사비에 연쇄적인 영향을 미친다. 본 연구에서는 공개된 자료를 바탕으로 태백 지하연구시설의 3차원 BIM 모델을 구축하고, BIM 객체에 작업분류체계, 공정 및 단위공사비 정보를 연계하여 5D BIM 기반의 시공계획 검토체계를 구성하였다. 진·출입용 수직구의 굴착순서와 경사 진입터널의 적용 여부를 달리한 세 가지 대안을 분석한 결과, 전체 공사기간은 각각 37.0개월, 34.5개월 및 43.0개월, 직접공사비는 대안 1과 대안 2가 각각 726.4억 원, 대안 3이 938.7억 원으로 산정되었다. 대안 2는 작업조별 굴착순서와 공정 간 선후행 관계를 조정하여 대안 1보다 공사기간을 2.5개월 단축하였으며, 대안 3은 접근성 측면의 장점에도 불구하고 장거리 경사 진입터널 굴착으로 인해 공사기간과 직접공사비가 증가하였다. 본 연구는 계획단계에서 시설물의 형상, 공정 및 비용을 통합적으로 비교할 수 있음을 보여주며, 구축된 모델은 향후 지질조사, 시공실적, 계측 및 유지관리 자료를 연계하기 위한 초기 기반으로 활용될 수 있다. 다만, 본 연구에서 제시한 공사기간 및 직접공사비는 일반적인 설계 및 시공 조건을 가정한 예측치로서, 실제 사업에서는 부지의 지질·지반 특성과 상세 설계사양 및 제반 시공여건에 따라 달라질 수 있다.

키워드
5D BIM
지하연구시설
수직구
경사 진입터널
시공 시뮬레이션
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Information
  • Publisher :Korean Society for Rock Mechanics and Rock Engineering
  • Publisher(Ko) :한국암반공학회
  • Journal Title :Tunnel and Underground Space
  • Journal Title(Ko) :터널과 지하공간
  • Volume : 36
  • No :4
  • Pages :313-326
  • Received Date : 2026-08-10
  • Revised Date : 2026-08-27
  • Accepted Date : 2026-08-27
  • DOI :https://doi.org/10.7474/TUS.2026.36.4.313
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