Soil Nail Wall v Tieback Wall
Soil Nail Wall v Tieback Wall
(OP)
This maybe too basic of a question, but...
Whats the basic difference between these two wall systems? They sound similar... is it shotcrete face v facing elements???
Whats the basic difference between these two wall systems? They sound similar... is it shotcrete face v facing elements???





RE: Soil Nail Wall v Tieback Wall
RE: Soil Nail Wall v Tieback Wall
Soil nail tendons are usually Grade 60 or 75 threadbar tendons. Tieback tendons are usually either threadbar tendons (Grade 60 to Grade 160) or multi-strand tendons (Grade 270).
Soil nail walls are soldier beamless walls. Shotcrete and nails are the support. There may be a second or permanent facing of shotcrete or even a precast facing attached to the nails. Tiedback walls often use soldier beams, lagging, and tiebacks with a precast or cast in place concrete permanent facing when required.
Soil nail walls become economical when the retained soils have a little cohesion and when it may be expensive to install soldier beams. Uncontrolled ground water can be a big problem when constructing either tiedback or soil nail walls.
Both tiedback and soil nail walls are meant to be constructed from the top down, in a cut situation. If your wall is a fill or embankment wall, anchored walls are usually not the best wall type. Try an MSE wall or conventional concrete wall.
This was just a few quick differences. There are others.