PIL/Types/TBT-PIL-008

Mini Piling Safety

Piling & Foundations › Types › Mini Piling Safety

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Mini piling uses small rigs to install piles in restricted access areas where conventional rigs cannot operate.
Common applications include underpinning, basement works, internal strengthening, and work near existing structures.
Mini piles are typically 150mm to 300mm diameter, installed by rotary drilling, driven, or augered methods.
Despite their smaller size, mini piling rigs weigh several tonnes and have rotating parts that cause entanglement.
Grouting operations involve pressurised cement grout that can cause burns and injection injuries on contact.
Working in confined internal areas creates noise, dust, and fume hazards that require additional ventilation.
Overhead clearance is often limited; operatives risk head injuries from low beams and existing structures.
The piling rig must be set up on a stable base even when operating inside buildings or basements.
Underground services must be located before drilling at every pile position, even inside existing buildings.
PUWER 1998, LOLER 1998, and the Control of Noise at Work Regulations 2005 apply to mini piling.

Entanglement injuries	Mini piling rigs have exposed rotating augers, drill rods, and hydraulic parts that catch clothing and cause fatal entanglement.
Restricted space hazards	Working inside buildings with limited ventilation, low headroom, and poor access amplifies noise, dust, and fume exposure.
Service strikes	Buildings contain hidden services in floor slabs and foundations. Drilling without scanning causes gas leaks and electrocution.

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See also: Piling Safety Awareness | Piling Platform Requirements

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