2017年08月16日

Slope stability with soil nail

Soil nailing support is suitable for loose and broken conditions, different size has different tensile strength and elongation rate. It has obvious effect than common supporting methods in project construction.
Soil nail wall support is consisted of dense soil nail group, soil body and sprayed concrete pavement. It is a compound and self-stabilized retaining structure, like gravity retaining wall, which aims to resist soil pressure and other loads and then makes foundation pit or slope stable.
The applied range of soil nail wall support is wide, such as: temporary support, permanent retaining structure, repair, rebuild and reinforcement of existing structures and support, etc.
Soil nails improve slope stability by:

(i) Partial increase in the the normal force and shear resistance along potential slip surface in frictional soils.

(ii) Direct reduction of driving force along potential slip surface for cohesive and frictional soils.

(iii) Soil nail head and facing provides containment effect to limit the deformation near slope surface.

Soil nail head serves to provide reaction in mobilizing tensile force in soil nail. Moreover, it provides confinement to soils in active zone behind soil nail head and avoids the occurrence of local failure between adjacent soil nails.
Posted by soilnailsystems at 18:41│Comments(0)TrackBack(0)

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