RESTRICTED ACCESS PILING
RB offers a range of restricted access mini-piling solutions utilising our compact, lightweight, and versatile fleet.
BOTTOM DRIVEN MINIPILES
Overburden Drilling System
UNDERPINNING
DRILL BAR
SECTIONAL FLIGHT
AUGER (SFA) PILES
JACK PILES & RAFTS
GRUNDOMAT
CONTIGUOUS PILED
RETAINING WALLS
SECTIONAL FLIGHT AUGER (SFA) PILES
Mini Sectional Flight Auger (SFA) piling is an auger bored replacement pile solution for restricted access piling which provides the ability to install piles in low headroom or restricted-access sites.
BOTTOM DRIVEN MINIPILESÂ
Mini bottom driven piles are one of the most cost-effective and environmentally friendly piling solutions, requiring much less concrete/cement than other mini piling solutions. A displacement technique, producing zero spoil makes it the ideal mini piling solution in contaminated ground.
OVERBURDEN DRILLING SYSTEM
Overburden Drilling System is a drilling method, suitable for boring through boulders and rock strata. This is a deep foundation solution which supports structures with heavy vertical loads. A bored pile is a cast-in-place concrete pile.
UNDERPINNING
Mini pile underpinning creates a strong and stable foundation by imparting a load transfer from the foundation to solid ground in order to minimize structural movement. A cost-effective alternative to mass concrete underpinning, eliminating excavations risks, such as contaminated spoils disposal. Various underpinning can be designed, mini piles are installed adjacent to existing walls transferring the load onto piles via needle beams.
DRILL BAR
Drill bar/micropiles are a high performance, high capacity self-drilling deep foundation solution typically between 5-12 inches in diameter that can extend to depths of 50 metres which transfers structural loads into the ground.The piles consist of high-strength steel casing, rebar and grout.
JACK PILES & RAFTS
Jack Piles are a restricted access technique used mainly for underpinning purposes whereby piles are pushed into the ground to a competent bearing stratum. Â This is a quiet, vibration free operation using the dead weight of an existing structure as a reaction to install the pile. The jack piles are used in conjunction with a RC raft or ground beams to transfer the load from the structure to the piles.
GRUNDOMAT
Grundomat piles are a type of bottom driven steel tubular pile often used for in the domestic market for property extensions and underÂpinning. The word Grundomat refers to the tool used to drive the pile – no piling rig is required. This allows piles to be installed in confined working areas and sites with heavily restricted access.
CONTIGUOUS PILED RETAINING WALLS
A contiguous piled wall is formed by installing a row(s) of discrete reinforced piles, commonly utilising CFA techniques, constructed at specific centres, usually the pile diameter plus 150mm. Where there is restricted access, other mini piling techniques may be utilised for pile installation.
Latest Restricted Access News
Supporting Energy Infrastructure: Roger Bullivant Limited Delivers Substation Foundations
Bottom Driven Minipiles for Modern Construction
Maximising Project Stability: The Power of Underpinning
Other piling methods from Roger Bullivant Limited
Roger Bullivant Limited provides a full suite of piling and ground engineering techniques, including:
- Driven precast concrete piles
- Precast concrete piles, precast concrete ground beams and prefabricated foundations
- CFA piling, CHD Piling, CDA piling, CHAD piles, SFA piles and overburden drilling system piles
- Driven tubular steel piles
- Vibro stone columns and controlled modulus rigid inclusions
We deliver to BS EN and ISO standards with CE-marked products. RBL has a multi-year RoSPA Gold record. Our in-house manufacturing, regional delivery model and integrated design capability provide dependable quality and supply resilience.
These alternatives allow us to design and deliver foundation systems tailored to every site, load requirement and budget.
