Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

OCEN 474 Chpt. 5

Revetments

TermDefinition
Revetments Sloping structures placed on banks or cliffs in such a way as to absorb the energy of incoming water
Practical design method: Black box model Only a function of slope due to Iribarren number. Uses F, which isn't known exactly
Practical design method: Analytical model A function of slope due to Iribarren number & right side of equation. (??? Not sure if this is actually the analytical model...)
Practical design method: Wave load approach Determines critical significant wave height that will lift out cover layers Determines minimum revetment thickness for given H_s values
b 0.5 for permeable cover layers 2/3 for semi-permeable 1.0 for semi-permeable
Shields Parameter Takes into account material type, used in length of splash area
Protection against overtopping Phi_T -> total stability factor, based on material alpha_i -> inner slope Rc -> revetment crest height above SWL Rn -> wave run-up on virtual slope, using alpha as slope & swl as origin D -> thickness of material layer; Dn = equivalent stone diam.
What affects the wave load approach? Period -> If T decreases, Hscr increases, & vice versa Slope -> Decrease in slope makes revetment more stable (Hscr is higher but the revetment uses less material)
Created by: rorysunderland
Popular Engineering sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards