Fondation for:

  • constructive works
  • buildings
  • underpinning works
  • different types of retaining structures

Techniques used :

  • IGU and IRS-grouted micropiles
  • piles
  • high-pressure and low-pressure injections
  • continuous spread footings
  • small- and medium-sized wells
  • drilled shafts
  • crossbeams

Micropiles for building foundations

Grout injections on an EDF dam spillway

Sill plate on micropile

Bridge foundations
Micropile drilling ø 255 mm – EGT 710 – 7 ton hydraulic drill
Foundation for a riprap support sill – Drillingø 250 mm – Petrol tube armature ø 180 mm – Excavator-mounted drill

Transfer of EGT 3200 23-ton dril

Injection station, compressor and hydraulic generator for drill stationed on sidewal

T 43 drill -Available height 1,80 m
Micropile drilling ø 200 mm

Injection station, compressor and hydraulic generator for drill stationed on sidewalk

114 mm-diameter armatures with ‘lost’ 200-mm tricone bit

Houses being reinforced with micropiles

BB60 and BB80 drill – DTH drilling, tricone or triblad
BB60 and BB80 drill – DTH drilling, tricone or triblad

Reinforcement with micropiles in a trestle structure and reinforced concrete sill with notches below existing wall

Reinforcement by injection

Crossbeams on micropiles as foundations
Crossbeams on micropiles as foundations
Cannula for grout injection in dam storm spillway