Geocomposite V.S. Wick Drain Strips
Geocomposite V.S. Wick Drain Strips
(OP)
Hi guys,
I am now doing a soil nail walls design, and i am wondering that can i replace 4-in wide wick drain with 16 to 24-in geocomposite behind the shotcrete wall.
In FHWA soil nail walls manual, circular no.7, it just mentioned about geocomposite drainage design.
Thank you.
I am now doing a soil nail walls design, and i am wondering that can i replace 4-in wide wick drain with 16 to 24-in geocomposite behind the shotcrete wall.
In FHWA soil nail walls manual, circular no.7, it just mentioned about geocomposite drainage design.
Thank you.





RE: Geocomposite V.S. Wick Drain Strips
RE: Geocomposite V.S. Wick Drain Strips
The wick drain material should be the option, only when it is confirmed that little water is anticipated. Also, the wick drain material is more likely to experience damage during the shotcrete application.
RE: Geocomposite V.S. Wick Drain Strips
RE: Geocomposite V.S. Wick Drain Strips
After looking at the comments, i have some other questions here.
In the design manual, they said geocomposite needs to be overlapped for 12-in MIN., will it be hard for 4-in. wide wick drain when doing this.
Emmgjld, you said wick drain is more likely to experience damage, what is the difference in material between geocomposite & wick drain?
If the material is "softer" in wick drain, will the kinked condition affect the flow rate efficiency?
Thanks.
RE: Geocomposite V.S. Wick Drain Strips
RE: Geocomposite V.S. Wick Drain Strips