Bored piles+ground anchors in plaxis?

Dear plaxis users and geotechnical engineers,

When using plaxis to design permanent and temporary ground anchors+bored piles in plaxis 2D, the obtained values of moment, normal and shear forces are supposed to be multiplied with the out of plane distance. For instance if the center-to-center distance of your piles is 1.1 metres, then the obtained values will be multiplied by 1.1 meters.

During design, in practice, the obtained values are again multiplied with a safety factor of about 1.3 under unfactored loads i.e. service condition. During permanent bored piles analysis (assuming a pseudostatic analysis), after multiplying the piles with the out of plane distance do we still need to apply with a factor of safety or not?

Also, for bored piles and ground anchors, practitioners ignore the normal force during design, and only use the moment force for the longitudinal reinforcement. By doing this, during a pseudostatic analysis, the obtained moment values without considering the normal force will lead to high longitudinal reinforcements. What is your take regarding this?

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