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Micropile 

GEO5

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Bearing capacity of the root in rock

This solution is suitable for the mircopile root reaching into rocks with index RQD > 60 or having the strength in simple compression σc  > 20 MPa (ISRM < III). The root bearing capacity is given by:

where: As - area of wall of micropile root
qsr - skin friction in rock
Ab - area of the micropile root
qbr - bearing capacity of the microple root in rock

Literature:

Guía para el proyecto y la ejecución de micropilotes en obras de carretera, Ministerio de fomento, 2005 (Spanish)




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