×
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

Slope stability question

Slope stability question

Slope stability question

(OP)
I'm a structural guy who didn't mind soils in school 30 years ago but has mostly dealt with them since for foundation bearing.  A project that I'm involved in has a problem that's not mine, but I am uncomfortably close to it.  A house was torn down & a new one is being built 75' from the top of a 100' high bank with a lake at the bottom.  There was an existing foundation & storm drain system that connected to a cast-in-place tank in the rear yard, which outletted to another cast-in-place structure 20' or 25' down the bank, & the outfall from that was rip-rapped & well-grown in with mature trees down the bank to the water.  This performed well for 75 years, the depth works, & we said connect the new foundation drain to the existing tank. (my involvement is structural design for the landscaper: pool, canopy, gazebo, etc. not the house, landscape budget is $1M just for reference).  The house builder decided to be clever & dug a trench from the basement out the bank with a 5' excavator bucket & laid pvc pipe for the foundation drain outlet.  The bank has slumped 6' wide each side of his 10' deep backfilled trench & is threatening to slide further. It's clay soil.  How do you stop it now and for the future?

RE: Slope stability question

I suggest that you get a local experienced geotechnical engineer involved to determine why the slope failed and how to best stabilize the slope.

Without a site visit, or a whole lot more information, there is no way to tell what is going on.

Good luck.

Mike Lambert
www.shannonwilson.com

RE: Slope stability question

(OP)
Thanks, I have already given the house builder the name & number of the guy that I depend on for geotech & told him he has to get someone qualified involved.

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