Virtual Performance of Rubble Mound Structures

The previous numerical simulation of the performance of rubble mound structures under sequences of hurricanes is extended to compute the reduction of the minimum cover depth of the armor stone layer under sequences of storms. The computer cover depth is reduced episodically by several major storms by the reduction rate decreases as the damaged armor layer ages. The performance is compared for the two-layer thick armor layers with the high and low nominal stone diameters whose ratio is 1.5. The reduction and variability of the normalized cover depth is much smaller for the high nominal diameter D (sub n50). The quality of armor stone placement is less important than the difference between the high and low D (sub n50). To compare the performance of the high and low D (sub n50) for the same layer thickness, computation is also made for the performance of the three-layer thick armor layer with the low D (sub n50). The increase of the initial layer thickness for the low D (sub n50). Dies not reduce the damage and variability of the cover depth but increases the remaining capacity of the damaged armor layer for protecting the underlayer to the level of the two-layer thick armor layer with the high D (sub n50). If the three-layer thick stone layer is constructed well.


  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-13
  • Monograph Title: Coastal Structures 2003

Subject/Index Terms

Filing Info

  • Accession Number: 01003530
  • Record Type: Publication
  • ISBN: 0784407339
  • Files: TRIS
  • Created Date: Aug 29 2005 9:25AM