All Issue

2024 Vol.25, Issue 12 Preview Page
Establishment of Burial Environment Data and Analysis of Failure Trends in District Heating Pipe

열수송관 매설환경 데이터 구축 및 파손경향 분석

Myeongsik Kong1
,
Jaemo Kang2*
,
Jinyoung Kim3
,
Sungyeol Lee4
공 명식1
,
강 재모2*
,
김 진영3
,
이 성열4
1Research Specialist, Department of Geotechinical Engineering Research, Korea Institute of Civil Engineering and Building Technology
2Senior Researcher, Department of Geotechinical Engineering Research, Korea Institute of Civil Engineering and Building Technology
3Senior Researcher, Department of Geotechinical Engineering Research, Korea Institute of Civil Engineering and Building Technology
4Postdoctoral Researcher, Department of Geotechinical Engineering Research, Korea Institute of Civil Engineering and Building Technology
*Corresponding Author
1 December 2024. pp. 15-20
PDF XML Citation
Abstract

District heating pipes are primarily buried in various environments, including under roads, in water sytems, such as rivers and reservoirs, and green spaces, each presenting different damage risks. Pipes under road are prone to higher damage due to repetitive fatigue from road loads, while those in water systems are exposed to increased corrosion risks from high humidity and oxygen supply. This study quantitatively analyzes the impact of burial environments on pipe damage by adding environmental attribute information to the operational history of district heating facilities and creating a database. Analysis revealed that the damage frequency in water systems was 0.624 cases/km per year, over 12 times higher than the overall average of 0.051 cases/km per year. The damage frequency in road burial environments was similar to the average, likely because 63% of district heating pipes are buried under roads. Additionally, evaluating four long-term districts indicated that longer usage periods lead to a faster increase in damage frequency in both road and water system environments. This quantitative analysis enhances understanding of the risks associated with district heating pipes near roads and water systems.

Keywords
District heating pipe
Burial environment
Damage frequency
Road load
Corrosion risk

열수송관은 주로 도로 하부, 수계(하천 및 저수지), 녹지 등 다양한 환경에 매설되며, 각 환경에 따른 파손 위험이 상이하다. 도로 하부에 매설된 열수송관은 도로 하중에 의해 반복적 피로 누적 현상이 발생하여 파손 가능성이 높아지며, 수계 구간은 높은 습도와 산소 공급으로 인해 부식 위험이 커질 수 있다. 본 연구에서는 열수송관의 매설환경이 파손에 미치는 영향을 정량적으로 분석하기 위해 열수송관 설비이력에 매설환경 속성정보를 추가하고 데이터베이스를 생성하였다. 관과 매설환경 중첩구간 정보와 보수이력 내 열수송관 매설환경 정보를 분석한 결과, 수계 매설환경에서의 파손 빈도는 연간 0.624건/km로, 전체 평균 파손 빈도인 0.051건/km/year 대비 12배 이상 높았다. 도로 매설환경에서는 평균과 유사한 수준의 파손빈도가 확인되었으며, 이는 전체 열수송관의 63%가 도로 하부에 매설되었기 때문으로 판단된다. 또한 전체 조사대상 구역 중 사용기간이 긴 4개 구역을 별도로 선정하여 사용기간이 매설환경의 파손경향에 미치는 영향을 평가한 결과, 도로 또는 수계 매설환경에서 사용기간이 길수록 파손빈도가 평균대비 더 빠르게 증가함을 확인하였다. 본 논문의 결과인 파손 경향에 대한 정량적 분석을 통해 도로 및 수계 주변 열수송관의 위험성을 이해하고, 특별관리구간에서 선제적 관리가 필요함을 확인할 수 있다. 본 연구는 열수송관의 장기적 안전성 확보와 유지보수 최적화를 위한 기초 자료로 활용될 수 있으며, 매설환경에 따라 맞춤형 관리 전략을 수립하는 데 기여할 수 있을 것으로 판단된다.

키워드
열수송관
매설환경
파손빈도
도로 하중
부식 위험
References
1

Ennio, M. P. and David, F. B. A. (2015), Uplift resistance of buried pipes anchored with geosynthetics, Vol. 22, No. 2, pp. 149~160.

10.1680/gein.15.00001
2

Francois, A. and Guanlan, L. (2024), Corrosion Risk Assessment in pipe, Bayesian Network Modeling of Corrosion, https://doi.org/10.1007/978-3-031-56128-3_5

10.1007/978-3-031-56128-3_5
3

Gyanesh, P., Anshul, K. M. J. S., Abhishek, R., Guru, P. and Lalit, B. (2022), Damage prediction of underground pipe subjected to blast loading, Arabian Journal for Science and Engineering, Vol. 47, No. 7, pp. 13559~13578.

10.1007/s13369-022-06920-4
4

Hassan, M. H. F., Mohamed, E. A. B. S., Ridwan, T. and Tarek, Z. (2023), Analysis and ranking of corrosion causes for water pipe: a critical review, Nature Reviews Engineering, Vol. 2, No. 1, pp. 15~29.

5

Kiefner and Associates (2023), Stress Assessment of Buried Pipes under Road Crossings or Construction Sites. Kiefner and Associates, Inc.

6

Korea District Heating Corporation (2024), Information on Priority Management Sections of District Heating Pipes in the Hannan-Map, Open Government Data Portal.

7

Margi M. Dave and C. H. Solanki (2020), Protection of buried pipe using geosynthetics under different loading conditions-a review, International Journal of Geosynthetics and Ground Engineering, Vol. 3, No. 4, pp. 249~262.

10.1007/978-981-15-0886-8_21
8

National Geographic Information Institute (2024), Road Boundary Line, V-World.

9

National Geographic Information Institute (2024), Parking Lot, V-World.

10

National Geographic Information Institute (2024), River Boundary, V-World.

11

National Geographic Information Institute (2024), Lake and Reservoir, V-World.

12

National Geographic Information Institute (2024), Real-Width River, V-World.

13

Rafael, A. G., Emilio, B. A., Mauricio, S. S., Franck, S. and Felipe, M. (2023), The Problem of Corrosion in pipe, pp. 41~64.

14

Shirokov, V. S. (2018), Soil and traffic loads on underground pipe, soil mechanics and foundation engineering, Vol. 55, No. 2, pp. 115~119.

10.1007/s11204-018-9512-6
Information
  • Publisher :Korean Geo-Environmental Society
  • Publisher(Ko) :한국지반환경공학회
  • Journal Title :Journal of the Korean Geo-Environmental Society
  • Journal Title(Ko) :한국지반환경공학회 논문집
  • Volume : 25
  • No :12
  • Pages :15-20
  • Received Date : 2024-10-17
  • Revised Date : 2024-10-21
  • Accepted Date : 2024-10-31
  • DOI :https://doi.org/10.14481/jkges.2024.25.12.15
Journal Informaiton Journal of the Korean Geo-Environmental Society Journal of the Korean Geo-Environmental Society
Online Submission
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • orcid
Journal Informaiton Journal Informaiton - close