Use of Micro piles

Drilled micropiles were invented in Italy in the 1950’s as a means to underpin sensitive historic buildings. The pile, called the Palo Radice or root pile, was a small diameter cast-in-place, lightly reinforced drilled pile developed by the Italian geotechnical construction company, Fondedile.

Drilled micropiles can be installed in a wide range of soils from non-cohesive, poorly graded granular soils, to cohesive plastic clays.

• APPLICATIONS
  Structural Foundation Support
  Structural Underpinning
  Soil/Slope Stabilization
  Excavation Support
  Seismic Retrofit
  Arresting Structural Settlement
  Resisting Uplift/Dynamic Loads
  Excavation Support in Confined Areas
  Reticulated Pile Wall

• Types of Micropiles
  Pushed or Driven
  Compaction Grouted
  Jet Grouted
  Post Grouted
  Pressure Grouted
  Drilled, End Bearing
  
  
  

• ADVANTAGES
  High bearing capacity
  Measure 6 to 12 inches in diameter
  Minimal disturbance/vibration to adjacent structures
  Capability to penetrate subsurface obstructions
  Design loads from 1 to 200+ tons
  Can be readily designed for tension/uplift loads
  Appropriate for a wide range of ground conditions
  Suitable for low headroom and restricted access
  Low noise