PIPE PENETRATION IN COHESIVE SOIL

Penetration of a pipe into cohesive soil is an important consideration in offshore pipeline engineering, especially as such penetration affects on-bottom stability of the pipeline. If the soil is described as a perfectly plastic cohesive material then the calculation of the limit load at a given penetration reduces to a plane strain problem in plasticity theory. Upper and lower bound solutions to this penetration problem are presented. The maximum range between the bounds occurs at one radius penetration. The difference between the upper and lower bounds varies from about ten per cent for the rough pipe case. Parametric studies demonstrate the effect of embedment depth, pipe-soil adhesion, soil surface heave, and increasing soil strength on the vertical limit load. The solutions presented are shown to compare favorably with test data.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • Murff, J D
  • Wagner, D A
  • Randolf, M F
• Publication Date: 1989-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 213-229
• Serial:
  • GEOTECHNIQUE
  • Volume: 39
  • Issue Number: 2
  • Publisher: Thomas Telford Limited
  • ISSN: 0016-8505

Subject/Index Terms

• TRT Terms: Adhesion; Cohesive soils; Loads; Mechanical stability; Mechanical strain; Offshore structures; Pendulum tests; Pipelines; Strength of materials; Ultimate load design
• Uncontrolled Terms: Heaving; Plane strain
• Old TRIS Terms: Heave
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Pipelines; Terminals and Facilities; I42: Soil Mechanics;

Filing Info

• Accession Number: 00486380
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 31 1989 12:00AM