Micropile

The micropile, also known as root pile, is a small diameter cast-in-situ bored pile formed by cement grout injection and subsequently equipped with lost, steel reinforcement element (bar, steel tube, H-type profile…). The boring is performed with compressed air or by means of a supporting drilling fluid (water, cement grout, bentonite).

Construction sequence

Installation process in accordance with the requirements of the  “NBN EN 14199 : Micro piles” standard

Fields of application

  • Vibration-free work in specific working conditions: restricted access or low headroom situations

  • Foundations of new constructions, strengthening foundations of existing structures or underpinning works of building foundations.

  • Drilling through obstacles

  • Dealing with compression and / or tension loads at large angles (inclined loads: incline of > 20° to the vertical)

Environmental impact

• Vibration-free

• Removal of excavated soil and drilling spoil from the job site is required

• A stable, dry and flat work platform is required

• Maximum of flexibility in use and restricted rig dimensions: execution with small to very small machines

• Execution with electrical machines possible (no emission of waste combustion gases).

Technical specifications

Related projects