Coastal Structures: Types, Functions And Applications
Coastal Structures: Types, Functions And Applications Coastal Structures: Types, Functions And Applications
Seawalls When would you want major armoring •Very valuable upland infrastructure •Harsh wave conditions, high surge •Cannot provide protection further offshore, for example with an offshore breakwater 14
Digression #1: Three coastal damage mechanisms – flooding, erosion, wave attack People understand flooding, but what exactly is “wave attack” Wave attack is impact from waves. Water is heavy, plus waves have forward velocity. To illustrate: 1 cubic foot = 7.48 gallons 1 cubic foot = 64 pounds 2 cubic feet = 128 pounds 15
- Page 1 and 2: Coastal Structures: Types, Function
- Page 3 and 4: SOFT v.s. HARD (Erodable v.s. Noner
- Page 5 and 6: Advantages of Hard Structures v.s.
- Page 7 and 8: 1. Coastal Armoring Structures More
- Page 9 and 10: Seawalls •Often concrete •May b
- Page 11 and 12: Scour protection Seawalls Typical c
- Page 13: Seawall Hereford Inlet, NJ Wall add
- Page 17 and 18: Heavier seawall materials can withs
- Page 19 and 20: What is overtopping Overtopping is
- Page 21 and 22: Scour: loss of material at the toe
- Page 23 and 24: Coastal Armoring: Revetments • Pu
- Page 25 and 26: Digression #2: How to Build a Rubbl
- Page 27 and 28: How to Build a Rubblemound Structur
- Page 29: How to Build a Rubblemound Structur
- Page 32 and 33: Revetments Fort Fisher, NC before F
- Page 34 and 35: Bulkheads Anchored Anchor pile Tie
- Page 36 and 37: Bulkheads Bulkheads: “Every homeo
- Page 38 and 39: Types of Coastal Structures 1. Coas
- Page 40 and 41: Nearshore (Detached) Breakwaters
- Page 42 and 43: Nearshore Breakwaters Maumee Bay St
- Page 44 and 45: Groins • Not jetties! • Trap %
- Page 46 and 47: Groins Overhead view of a rock groi
- Page 48 and 49: Groins Terminal groin Buried groin
- Page 50 and 51: How does sand move past a groin San
- Page 52 and 53: Reefs and Sills • Purpose is to l
- Page 54 and 55: Double-T Units & Scour Apron 54
- Page 56 and 57: “Beachsaver” Units Patented sha
- Page 58 and 59: Containment Dikes •Stabilize peri
- Page 60 and 61: Types of Coastal Structures • Coa
- Page 62 and 63: -Smaller vessels are more affected
Seawalls<br />
When would you want major armoring<br />
•Very valuable upland infrastructure<br />
•Harsh wave conditions, high surge<br />
•Cannot provide protection further<br />
offshore, for example with an offshore<br />
breakwater<br />
14
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