A Novel Risk Assessment Approach for Existing Pipelines due to Tunneling Excavation
This paper presents a novel approach with step-by-step procedures for risk assessment of existing pipelines in tunneling environments (RAEPTE), where Cloud Model (CM) provides a basis for uncertainty transforming between qualitative concepts and their quantitative expressions. An evaluation index system of multiple layers and attributes is established for RAEPTE according to the tunnel-induced pipe failure mechanism analysis. The evaluation result is assessed by the correlation with the cloud model of each risk level. A confidence indicator is proposed to illustrate the rationality and reliability of evaluating results. Ten underground buried pipes adjacent to the construction of Wuhan Metro Line Two were chosen in a case study. Comparisons between different evaluation methods were further discussed according to results. The proposed approach was verified to be a more competitive solution when obtained data was not sufficient. The original data can be directly entered as inputs without a normalization procedure, avoiding the potential information loss. This approach can be used as a decision tool for the risk assessment in other similar projects, and to increase the likelihood of a successful project in an uncertain environment.
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Supplemental Notes:
- This paper was sponsored by TRB committee AFB70 Utilities.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Zhang, Limao
- Wu, Xianguo
- Skibniewski, Miroslaw J
- Chena, Yueqing
- Chen, Hongyu
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Conference:
- Transportation Research Board 93rd Annual Meeting
- Location: Washington DC
- Date: 2014-1-12 to 2014-1-16
- Date: 2014
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 15p
- Monograph Title: TRB 93rd Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Case studies; Evaluation and assessment; Excavation and tunneling; Pipeline safety; Pipelines; Risk assessment
- Geographic Terms: Wuhan (China)
- Subject Areas: Pipelines; Planning and Forecasting; Safety and Human Factors; I54: Construction of Tunnels; I72: Traffic and Transport Planning; I83: Accidents and the Human Factor;
Filing Info
- Accession Number: 01519707
- Record Type: Publication
- Report/Paper Numbers: 14-1509
- Files: PRP, TRIS, TRB, ATRI
- Created Date: Mar 26 2014 10:07AM