FIGURE PAGE 



7-72 Force and Moment Reduction Factors 7-140 



7-73 Wall on Rubble Foundation - Pressure Distribution 7-143 



7-74 Minikin Wave Pressure Diagram 7-147 



7-75 Dimensionless Minikin Wave Pressure and Force 7-150 



7-76 Dimensionless Minikin Wave Pressure and Force 7-153 



7-77 Minikin Force Reduction Factor 7-154 



7-78 Minikin Moment Reduction for Low Wall 7-155 



7-79 Wave Pressures from Broken Waves: Wall Seaward of 



Stillwater Line 7-158 



7-80 Wave Pressures from Broken Waves: Wall Landward of 



Stillwater Line 7-160 



7-81 Effect of Angle of Wave Approach - Plan View 7-165 



7-82 Wall Shapes 7-166 



7-83 Weight of Armor Units x Kp vs Wave Height for Various 



Slope Values (Wj, = 140 lbs/ft^ and 145 lbs/ft^) 7-171 



7-84 Weight of Armor Units x K^ vs Wave Height for Various 



Slope Values (w^ - 150 lbs/ft^ and 155 lbs/ft^) 7-172 



7-85 Weight of Armor Units x K^) vs Wave Height for Various 



Slope Values (w^ = 160 lbs/ft^ and 165 lbs/ft^) 7-173 



7-86 Weight of Armor Units x K^ vs Wave Height for Various 



Slope Values (yi-^ = 170 lbs/ft^ and 175 lbs/ft^) 7-174 



7-87 Effect of Unit Weight Changes on Required Weight of 



Armor Unit 7-181 



7-88 Concrete Armor Units 7-184 



7-89 Tetrapod Specifications 7-185 



7-90 Quadripod Specifications 7-186 



7-91 Tribar Specifications 7-187 



7-92 Doles Specifications ..... 7-188 



7-93 Modified-Cube Specifications 7-189 



7-94 Hexapod Specifications 7-190 



7-95 Rubble-Mound Section for Nonbreaking Wave Condition (zero 



to moderate overtopping conditions) 7-191 



7-96 Rubble-Mound Section for Breaking Wave Condition 



(moderate overtopping) 7-193 



7-97 Logic Diagram for Preliminary Design of Rubble Structure . 7-194 



7-98 Logic Diagram for Evaluation of Preliminary Design .... 7-195 

 7-99 Stability Number for Rubble Foundation and Toe 



Protection 7-202 



7-100 Velocity vs Stone Weight and Equivalent Stone Diameter 



(Wy = 62.4 lbs/ft3) 7_205 



7-101 Definition Sketch for Coulomb Earth Force Equation .... 7-210 



7-102 Active Earth Force for Simple Rankine Case 7-210 



8-1 Location Plan - Offshore Island 8-4 



8-2 Site Plan - Offshore Island 8-5 



8-3 Perspective View and Section through Island 8-6 



8-4 Location of Bottom Profiles 8-7 



8-5 Bottom Profiles through Island Site 8-8 



8-6 Hurricane Storm Tracks in the Delaware Bay Area 8-11 



XIII 



