Model and Small-Scale Tests to Evaluate the Performance of Drag Anchors in Combination

Abstract

Model and small-scale field tests of high efficiency anchors in tandem (piggy back) and in parallel have been performed to evaluate the feasibility of using anchors in combination to satisfy expanded Navy fleet mooring requirements. This report presents the results of model tests in sand and in a synthetic clay-like material with 1/20th-scale models of a 6,000-pound STATO anchor and results of tests in beach sand with 200-pound STATO and 350- pound DANFORTH anchors. Feasible rigging methods for using combinations of high efficiency anchors that are compatible with Navy installations and handling capability are defined. Anchors in tandem and parallel can be arranged to achieve system capacities that exceed the sum of two individually pulled anchors. The increased performance averages 20% to 30% and is directly related to potential cost savings in anchor procurements.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA148887

Entities

People

  • G. R. Walker
  • R. J. Taylor

Organizations

  • Naval Facilities Engineering Service Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Cells
  • Civil Engineering
  • Efficiency
  • Engineering
  • Field Tests
  • Load Cells
  • Load Distribution
  • Measurement
  • Model Tests
  • Models
  • Naval Architecture
  • Procurement
  • Scale Models
  • Shear Strength
  • Standards
  • Test And Evaluation
  • Test Beds

Readers

  • Electrical Engineering
  • Materials Science (Mechanical Engineering).
  • Pavement Materials Engineering.