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Micropile 

GEO5

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Zweck theory

The Zweck and Bowles methods were developed for the analysis of anchor roots – they depend mainly on the geostatic stress in the location of the micropile root. These methods arise from the same priciples – the pressure magnitude is however reduced using the coefficient of pressure at rest Ko.

where: d - root diameter
l - root length
Ko - magnitude of pressure at rest
σz - average geostatic stress at the micropile root
φ - average value of friction angle at the micropile root



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