Large diameter bored pile under support fluid

The large diameter bored pile under thixotropic fluid is a cast-in-place circular cross-section concrete pile. For the construction of this non-displacement pile a borehole is made using purpose designed drill tools, with removal of soil. Where boreholes are required to penetrate considerable depths of unstable soil a support fluid, e.g. bentonite mud or polymer and a temporary recoverable top casing assist in stabilizing the bore and allow the perfect insertion of heavily reinforcement steel cages.

Home / Techniques / Piles / Large Diameter Bored Piles / Large diameter bored pile under support fluid

Fields of application

• Executed as single pile, contiguous (tangent) or - less often - secant pile wall

• Suitable for high point loads, important horizontal loads and bending moments

• Bearing or embedment in firm strata or hard rock possible

• Obstacle drilling (when other techniques cannot be implemented)

• Important installation depths (up to > 50 m)

• Create piles with a cut-off level beneath the working platform level possible ("contrebas")

• Infrastructure works, important industrial projects, large buildings.

Environmental impact

• Vibration-free

• Pile with soil extraction: removal of spoil from the job site is required

• Provision should be made to handle the thixotropic fluid

• A stable, dry and flat work platform is required.

Construction sequence

Installation process in accordance with the requirements of standard NBN EN1536:1999

Our Techniques

Retaining Walls

Foundation Packages

Ground Improvement