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.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee AFB70 Utilities.
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Zhang, Limao
    • Wu, Xianguo
    • Skibniewski, Miroslaw J
    • Chena, Yueqing
    • Chen, Hongyu
  • Conference:
  • 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

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