Soil Nail Wall Wall, Exteral Force Required...
Soil Nail Wall Wall, Exteral Force Required...
(OP)
I have to build a permanent soil nail wall 6m high to retain soil sloping at an angle of 15 degrees from the top of the wall back.
I have analysed the wall using GeoSlope software SlopeW and have come up with a solution which gives an adequate FoS.
However, the soil nail anchors used encroach on a neighbouring property which is 2.8m from the retaining wall, and so i need to calculate the external force required to make the section stable. I have been told to treat the modelled section as a high strength soil.
How do i go about calculating the external force required?
I'm only new in the field of geotech and would appreciate any help or guidance.
thanks.
I have analysed the wall using GeoSlope software SlopeW and have come up with a solution which gives an adequate FoS.
However, the soil nail anchors used encroach on a neighbouring property which is 2.8m from the retaining wall, and so i need to calculate the external force required to make the section stable. I have been told to treat the modelled section as a high strength soil.
How do i go about calculating the external force required?
I'm only new in the field of geotech and would appreciate any help or guidance.
thanks.





RE: Soil Nail Wall Wall, Exteral Force Required...
Pick a new type of (more expensive) wall or get permanent soil nail easements into the neighbor's property.
www.PeirceEngineering.com
RE: Soil Nail Wall Wall, Exteral Force Required...
RE: Soil Nail Wall Wall, Exteral Force Required...
www.PeirceEngineering.com
RE: Soil Nail Wall Wall, Exteral Force Required...
RE: Soil Nail Wall Wall, Exteral Force Required...
[An upper limit of the force should be <=(FS)x(ka)x(gamma)x(H^2)/2, because the soil mass mobilized by the nails provides partial stability.]
...and then the physical device for applying this force will need to be designed and incorporated into the construction.
RE: Soil Nail Wall Wall, Exteral Force Required...
If an external force is provided, it would be important to check the intermediate construction stages to make sure the wall is stable as it is being built. It is not wise to just add a lot of force (or a much longer nail) at one location and then believe that the wall is stable. For example, an extra long bottom nail will raise the calculated safety factor on paper but, in reality, may not stabilize the upper portion of the wall.
www.PeirceEngineering.com