. Dolos design procedure based on Crescent City prototype data. Breakwaters; Structural analysis (Engineering); Hydraulic models; Hydraulic structures. 93. It can be seen from this figure that the stress increase with weight for small dolosse is dramatic but that the increase becomes almost linear above about 15 tons. For normal strength concrete having a tensile rupture strength of approximately 600 psi, stable dolosse below 10 tons are not at risk structurally, while those above 20 tons require strengthening. The various points plotted on this figure are prototype cases and they will be disc
. Dolos design procedure based on Crescent City prototype data. Breakwaters; Structural analysis (Engineering); Hydraulic models; Hydraulic structures. 93. It can be seen from this figure that the stress increase with weight for small dolosse is dramatic but that the increase becomes almost linear above about 15 tons. For normal strength concrete having a tensile rupture strength of approximately 600 psi, stable dolosse below 10 tons are not at risk structurally, while those above 20 tons require strengthening. The various points plotted on this figure are prototype cases and they will be discussed in the following section. 94. Figure 12 shows a typical dolos design diagram where the hydro- dynamically stable dolos weight and the structurally stable dolos weight are plotted as two separate curves versus wave Wave Height in feet Figure 12. Dolos design diagram 95. The strength curves are nearly horizontal, angling slightly down to the right. The hydrodynamic stability curves begin at the origin and in- crease at an exponential rate to the right. The design envelope would be below the appropriate strength curve and to the left of the appropriate hydrodynamic stability curve. This plot gives the stability for three waist ratios using the results of Zwamborn, Scholtz, and Claasens (1988) as well as 43. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Melby, Jeffrey A; United States. Army. Corps of Engineers; Coastal Engineering Research Center (U. S. ); U. S. Army Engineer Waterways Experiment Station. [Vicksburg, Miss. : U. S. Army Engineer Waterways Experiment Station ; Springfield, Va. : Available from National Technical Information Service]
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