0

Full Content is available to subscribers

Subscribe/Learn More  >

Strain Demand in Areas of Mine Subsidence

[+] Author Affiliations
Fan Zhang, Ming Liu, Yong-Yi Wang

Center for Reliable Energy Systems, Dublin, OH

Zhifeng Yu, Lei Tong

China Petroleum Pipeline Engineering Corporation, Langfang, Hebei, China

Paper No. IPC2012-90641, pp. 391-401; 11 pages
doi:10.1115/IPC2012-90641
From:
  • 2012 9th International Pipeline Conference
  • Volume 4: Pipelining in Northern and Offshore Environments; Strain-Based Design; Risk and Reliability; Standards and Regulations
  • Calgary, Alberta, Canada, September 24–28, 2012
  • Conference Sponsors: International Petroleum Technology Institute, Pipeline Division
  • ISBN: 978-0-7918-4515-8
  • Copyright © 2012 by ASME

abstract

Mine subsidence is one of the major ground movement hazards for buried pipelines in regions of completed and ongoing mining activities. The strain demand under mine subsidence is evaluated for candidate pipes to be used in the construction of large-diameter and high-pressure long distance pipelines in China. Two typical subsidence forms were discussed.

1. One form is the sag/trough subsidence with large subsidence depth and area but continuous boundaries. The pipeline remains in the soil after the subsidence.

2. The other form is the pit subsidence with small subsidence depth and area but more severe discontinuous boundaries. The pipeline may be suspended above the ground surface in the subsidence hole after the subsidence.

For purposes of this research, the strain demand analysis was conducted with the commercial finite element analysis package ABAQUS®. The PIPE and ELBOW elements were selected to simulate the pipeline and the ASCE spring model was selected to determine the interaction between the pipeline and surrounding soil. The general consideration of the loads on pipeline in subsidence analysis is described. The results show that the pipeline experiences the most severe deformation during the discontinuous pit subsidence. The strain demands are compared with the pipe strain capacity in a companion paper to investigate the integrity of the pipeline.

Copyright © 2012 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In