Bearing Capacity of the Root in Rock
This solution is suitable for the micropile 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 the wall of micropile root |
qsr | - | ||
Ab | - | area of the micropile root | |
qbr | - |
Literature:
Guía para el proyecto y la ejecución de micropilotes en obras de carretera, Ministerio de fomento, 2005 (Spanish).