Simple Method for the Safety Evaluation of Underground Pipelines Induced by Urban Shallow Tunneling

Excavation of an urban-shallow buried tunnel would cause adverse effects on above or neighboring undergound pipelines, even leading to major accidents. According to the joint connection and deformation rigidity, municipal pipelines are divided into the flexible pipeline and the rigid pipeline. Based on the pipeline failure modes, safety criteria of various underground pipelines are discussed. Through the commonly accepted formula of soil movement induced by tunnelling, this paper proposes a simple method on safety evaluation of the flexible pipeline, and gives a case of an engineering application, which takes into account spatial position relations between the pipeline and tunnelling, and deformation curve shape of the flexible pipeline. The calculation formula has fewer parameters to be used easily, and is especially suitable for the quantitative safety prediction of underground pipelines in a condition where there is not enough formation data and detailed pipeline information before tunnelling. It also provides theoretical support for reasonably determining the limit alarming value of ground settlement in tunnel construction.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References;
  • Pagination: pp 19-26
  • Monograph Title: Geo-China 2016: Emerging Technologies in Tunnel Engineering, Modeling, Design, Construction, Repair, and Rehabilitation

Subject/Index Terms

Filing Info

  • Accession Number: 01608901
  • Record Type: Publication
  • ISBN: 9780784480038
  • Files: TRIS, ASCE
  • Created Date: Jul 21 2016 3:04PM