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|Title:||Effects of dolos breakage on the stability of rubble-mound breakwater trunks subjected to breaking and nonbreaking waves with no overtopping|
|Authors:||Markle, Dennis G.|
Davidson, D. Donald.
|Publisher:||Coastal Engineering Research Center (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Technical report (U.S. Army Engineer Waterways Experiment Station) ; CERC-83-4.|
Abstract: Experimental tests were conducted to determine the quantity and distribution of broken dolosse that will cause a reduction in the stability of the dolos armor layers (1V-on-1.5H sloped, breakwater trunks) when subjected to their no-damage design, breaking or nonbreaking wave conditions with no overtopping. It was concluded that for the range of test conditions considered: (a) if dolos breakage does not exceed 15 percent uniform breakage in the top layer, 15 percent uniform breakage in the bottom layer, 7.5 percent uniform breakage in both layers (7.5 percent in the top layer plus 7 .5 percent in the bottom layer), or clusters of 5 broken dolosse, the overall stability of the dolos coverlayers will be very similar to the stability response of a dolos-armored structure with no breakage; and (b) when breakage levels exceed those specified in (a), a structure could either fail catastrophically, have areas of exposed underlayer, and/or have areas with only one layer of dolos armor. The high degree of dolos movement and displacement associated with larger amounts of dolos breakage could cause additional dolos breakage that could ultimately lead to failure of the dolos armor layers.
|Appears in Collections:||Technical Report|