Stabilization of sand dune in seismic zones
Stabilization of sand dune in seismic zones
(OP)
Hello,
I want to hear your thought of doing a cut in a sand dune of 100 m height with natural slope of 2H:1V. We need to cut for a road about 8 m, and then use a 2V:1H slope. The soil is a SP-SM sand dune, very loose. What kind of stabilization system (ie. soil nailings) would you recommend?
[img https://imgur.com/yVNzfqK]
Thanks friends!
I want to hear your thought of doing a cut in a sand dune of 100 m height with natural slope of 2H:1V. We need to cut for a road about 8 m, and then use a 2V:1H slope. The soil is a SP-SM sand dune, very loose. What kind of stabilization system (ie. soil nailings) would you recommend?
[img https://imgur.com/yVNzfqK]
Thanks friends!
RE: Stabilization of sand dune in seismic zones
Your proposed cut is a serious endeavour so I'd guess the best way forward would be a piled approach. I'd just add that with slopes of 1:2 (V:H), your sand dune is in a marginal state of stability. Heavy vibrations during construction will probably bring it down straight over the top of your cutting which would trigger the snowball effect...
All the best,
Mike
RE: Stabilization of sand dune in seismic zones
Any shallowly-founded retaining structures supporting your cut would be globally unstable for the above reasons.
Cheers,
Mike
RE: Stabilization of sand dune in seismic zones
Dik
RE: Stabilization of sand dune in seismic zones
What kind of pile approach would you suggest?
RE: Stabilization of sand dune in seismic zones
This material is a mixture of continuous thread and sand. It has an apparent cohesion of 0.1 MPa and a very high friction angle and can be used as a retaining structure almost vertical.
http://www.eiffageinfrastructures.com/texsol
RE: Stabilization of sand dune in seismic zones
Folks use shear walls to stabilize against shaking. May work?
f-d
ípapß gordo ainÆt no madre flaca!
RE: Stabilization of sand dune in seismic zones