×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

AREMA Trial Wedge Method

AREMA Trial Wedge Method

AREMA Trial Wedge Method

(OP)
Im designing wingwalls for a bridge and was told to use the Trial wedge method of earth pressure computation in AREMA.  part of that computation involves ho=(2*c/w)*tan(45deg+phi/2).  but if my c=0 as with cohesionless soils then I get ho=0.  does anyone have any good examples or insite on the trial wedge method with cohesionless soils?

RE: AREMA Trial Wedge Method

The formula looks like it calculates the depth of tension crack, which is not applicable to c=0 soils.

RE: AREMA Trial Wedge Method

(OP)
I'm going to assume with cohesionless soils that ho=0 and that is O.K.

the example on AREMA (Figure C-8-5-4)has calculated wedge vector.  for wedge 1-i'm assuming wedge BC1 the area is 19.56 x 7/2 + 5.77x7=108.9.  Where are they getting the 19.56 and 7/2 numbers?

RE: AREMA Trial Wedge Method

Would you mind posting those pages. Don't have AREMA handy.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources