EFFECTS OF INCLINED AND ECCENTRIC LOAD APPLICATION ON THE BREAKOUT RESISTANCE OF OBJECTS EMBEDDED IN THE SEA FLOOR

The expansion of the field of coastal and ocean engineering has resulted in increasing applications for floating equipment anchored in shallow and deep water. Many of these applications impose a stringent station-keeping requirement using tautline embedded systems. Past studies of this system were limited to vertical load application. This study investigated load applications from 90 degrees to 45 degrees from the horizontal with the anchor attachment varied from the mid-point to one edge of the plate. These experiments were conducted in three different soils with burial depths of two and eight diameters and at varying angles. A dimensionless relationship between the maximum pullout force, angle of inclination, eccentricity of load application, and soil shear strength as a function of burial depth was developed by dimensional analysis methods and appears to be valid. Two equations are presented for calculating the estimated pullout force required to withdraw an object embedded in dry sand or marine sediment when subjected to an inclined or eccentric load application.

• Supplemental Notes:
  • Sea Grant Program. Partially supported by the National Oceanic and Atmospheric Administration
• Corporate Authors:

  Texas A&M University, College Station

  Coastal and Ocean Engineering Division
  College Station, TX  United States  77843
• Authors:
  • Colp, J L
  • Herbich, J B
• Publication Date: 1972-5

Media Info

• Features: References;
• Pagination: 91 p.

Subject/Index Terms

• TRT Terms: Anchoring; Force; Offshore moorings
• Old TRIS Terms: Anchor forces; Anchor holding power; Breakout forces
• Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00035094
• Record Type: Publication
• Source Agency: Texas A&M University, College Station
• Report/Paper Numbers: COE-153
• Contract Numbers: 2-35213
• Files: TRIS
• Created Date: Oct 27 1972 12:00AM