On-line contextual Help

/

Micropile 

GEO5

Geotechnical software

« Back to Help

Verification based on factor of safety

The program performs verification analysis of the micropile tube and root:

Verification of the cross-section (tube)

Both, internal stability of section and coupled section bearing capacity, are verified.


1. Internal stability of section

where: Ncr - standard critical normal force, calculated in dependence on the method set in the frame "Analysis methods"
Nmax - maximal normal force, entered in the frame "Load"
FS - critical force safety factor, entered in the frame "Settings"

2. Coupled section bearing capacity

where: Rs - standard strength of steel, entered in the frame "Material"
σs - stress in steel, calculated according to the way of loading (section loaded only by normal force or by combination of bending moment and normal force)
FS - safety factor of section resistance, entered in the frame "Settings"


Verification of the root

where: Q - standard root bearing capacity, calculated in dependence on used method (see "Bearing capacity of the micropile root section")
Nmax - maximal normal force, entered in the frame "Load"
FS - root resistance safety factor, entered in the frame "Settings"



Language: english