Micropiles serve to introduce compression loads into the ground or to transfer tensile forces (such as created by uplift). They can be installed in any soil types as well as in rock and transmit the force into the soil by skin friction and end-bearing. Commonly applied execution methods are drilling and driving with percussion or vibration, if necessary using ultra-compact equipment which permits working in tight spaces. This means micropiles can also be installed within existing buildings.
Depending on requirements, micropiles are deployed as single piles, pile groups or walls on new-build, renovation or building reconstruction projects. Bauer produces micropiles with diameter from 114 mm to 300 mm, using cased or uncased drilling techniques. The pile shaft is made of cement slurry, mortar or concrete. The external load-bearing capacity can be increased by single or repeated multiple grouting. Internal load-bearing capacity is safeguarded by means of bearing elements comprising single rods, rod groups, casings, profiles or reinforcement cages.