All Issue

2025 Vol.27, Issue 4 Preview Page

Research Paper

A study on the utility tunnel performance evaluation method using grey clustering

Grey clustering을 활용한 공동구 성능평가 방법에 관한 연구

Yongjun Lee1
,
Young-Jong Sim2*
이 용준1
,
심 영종2*
1Research Fellow, Land & Housing Research Institute, Korea Land & Housing Corp.
2Senior Research, Land & Housing Research Institute, Korea Land & Housing Corp.
1비회원, 한국토지주택공사 토지주택연구원 연구원
2정회원, 한국토지주택공사 토지주택연구원 연구위원
*Corresponding Author
31 July 2025. pp. 305-316
PDF XML Citation
Abstract

Utility tunnels are essential underground structures in urban areas that accommodate various utility systems such as power, telecommunications, and water supply. Their demand has been steadily increasing due to large-scale land development and the creation of new cities, emphasizing the need for systematic maintenance and management. This study proposes a performance evaluation model based on the grey clustering (GC) technique, which quantitatively assesses the comprehensive performance of utility tunnel structures—including safety, durability, and usability—and classifies them into performance grades based on the evaluation results. The GC method utilizes weighting factors for evaluation items and whitening weighting functions to calculate comprehensive GC coefficients for each performance grade, enabling the classification of tunnel structure performance into quantitative indicators. The proposed model was applied to three actual utility tunnel structures, and the results confirmed that the performance of each structure could be quantified into five performance grades. This demonstrates the model’s applicability as a rational basis for future maintenance planning and performance improvement decision-making.

Keywords
Utility tunnel
Grey clustering
Maintenance
Performance evaluation
Grade classification

공동구는 전력, 통신, 상수도 등 다양한 공급설비를 수용하는 중요한 도시 지하시설물로 대규모 토지개발 및 신도시 조성에 따라 그 수요가 지속적으로 증가하고 있다. 이에 공동구의 체계적인 유지관리 필요성이 점차 강조되고 있다. 본 연구에서는 공동구의 안전성, 내구성, 사용성을 포함한 종합적인 성능을 정량적으로 평가하고 그 결과를 기반으로 성능등급을 분류할 수 있는 Grey Clustering (GC) 기반 성능평가 모델을 제안하였다. GC 기법은 공동구 성능평가 항목의 가중치와 백색화 가중치 함수를 활용하여 성능등급별 종합 GC 계수를 산정하고 해당 공동구의 성능등급을 정량적인 지표로 분류하는 방법이다. GC 기법 기반의 성능평가 모델을 실제 공동구 3개소에 적용한 결과, 각 공동구의 성능을 5단계 등급으로 정량화할 수 있었다. 향후 공동구의 유지관리 및 성능개선 의사결정을 위한 합리적인 기준으로 활용 가능함을 확인하였다.

키워드
공동구
Grey clustering
유지관리
성능평가
등급분류
References
1

Deng, J. (1982), “Control problems of grey systems”, Systems & Control Letters, Vol. 1, No. 5, pp. 288-294.

10.1016/S0167-6911(82)80025-X
2

Deng, J. (1989), “Introduction to grey system theory”, Journal of Grey System, Vol. 1, No. 1, pp. 1-24.

3

Facility Management System, http://www.fms.or.kr (July 1, 2025).

4

Lee, J.G., Son, Y.T., Han, S.J., Park, J.Y., Lee, S.H. (2010), “Evaluation of vehicle and pedestrian environments using grey system theory”, Journal of Korean Society of Transportation, Vol. 28, No. 4, pp. 141-156.

5

Lee, Y., Jin, K.N., Sim, Y.J. (2024), “A study on the weights on the evaluation items for utility tunnel performance evaluation”, Journal of Korean Tunnelling and Underground Space Association, Vol. 26, No. 5, pp. 477-488.

10.9711/KTAJ.2024.26.5.477
6

MOLIT (2023), Guideline and commentary of safety inspection and in-depth safety inspection for structures-utility tunnel, Ministry of Land, Infrastructure and Transport, p. 47.

7

MOLIT (2024), Special act on safety control for infrastructure, Ministry of Land, Infrastructure and Transport.

8

MOLIT (2025), Enforcement decree of the national land planning and utilization act, Ministry of Land, Infrastructure and Transport.

9

Sun, S., Xu, C., Wang, A., Yang, Y., Su M,(2022), “Safety evaluation of urban underground utility tunnel with the grey clustering method based on the whole life cycle theory”, Journal of Asian Architecture and Building Engineering, Vol. 21, No. 6, pp. 2532-2544.

10.1080/13467581.2021.2007104
10

Yin, M.S. (2013), “Fifteen years of grey system theory research: A historical review and bibliometric analysis”, Expert Systems with Applications, Vol. 40, No. 7, pp. 2767-2775.

10.1016/j.eswa.2012.11.002
11

Zhang, J.B., Li, X.P. (2011), “Applying grey clustering method on evaluating water bursting risks in highway tunnels”, Proceedings of the 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, Nanjing, China, pp. 4828-4831.

10.1109/RSETE.2011.5965393
Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 27
  • No :4
  • Pages :305-316
  • Received Date : 2025-07-01
  • Revised Date : 2025-07-22
  • Accepted Date : 2025-07-22
  • DOI :https://doi.org/10.9711/KTAJ.2025.27.4.305
Journal Informaiton Journal of Korean Tunnelling and Underground Space Association Journal of Korean Tunnelling and Underground Space Association
Online Submission & Review System
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close