Effective Combination of PCCP Condition Assessment Methodologies - Raising the Pressure at Homestake

The Homestake Water Project is a pipeline jointly operated by the City of Aurora and Colorado Springs in the state of Colorado. In late 2003, Homestake identified the need to increase the pipeline's throughput from 382 million l/d (101 mgd) to 447 million l/d (118 mgd) in order to satisfy increased end user demand. The consulting engineers, Black & Veatch, were charged with determining the stability of this pipeline and its ability to withstand increased pressures, as a result of the increased flow. In this case study the authors present and discuss how a combination of two condition assessment technologies, Remote Field Eddy Current/Transformer Coupling (RFEC/TC) and Acoustic Emission Testing (AET), were able to provide Homestake with high value information that established the risk of raising the pipeline's operating pressure. The two pronged condition assessment program involved establishing the baseline condition of the pipeline using RFEC/TC and continuously acoustically monitoring the line while changing its pressure to determine what effect, if any, the pressure tests had upon the structural integrity of the line.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407452
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Mergelas, B
  • Kong, X
  • Worthington, W
  • Vidmar, T
  • Livingston, B
  • Polehemus, M
• Conference:
  • Pipelines 2004: What's on the Horizon?
  • Location: San Diego California, United States
  • Date: 2004-8-1 to 2004-8-4
• Publication Date: 2004

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; Photos; Tables;
• Pagination: 8p
• Monograph Title: Pipeline Engineering and Construction: What's on the Horizon? Proceedings of the Pipelines 2004 International Conference, August 1-4, 2004, San Diego, California

Subject/Index Terms

• TRT Terms: Acoustic emission tests; Case studies; Condition surveys; Stability (Mechanics); Water pipelines; Water pressure
• Uncontrolled Terms: Pipeline operating pressure; Prestressed concrete cylinder pipe; Remote field eddy current/transformer coupling; Structural integrity; Throughput
• Geographic Terms: Aurora (Colorado); Colorado Springs (Colorado)
• Subject Areas: Design; Pipelines;

Filing Info

• Accession Number: 01003260
• Record Type: Publication
• ISBN: 0784407452
• Files: TRIS
• Created Date: Aug 23 2005 3:39PM