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Restricted access bored piling
Utilising the Martello Technique, large diameter piles (750/900/1050mm) are able to be constructed to depths of 40.0m to form fully reinforced piles of up to 8500kN (dependant on site specific conditions and diameters) in restricted access and low headroom conditions.
Construction Sequence
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Fields of application
• Structures where large rigs cannot gain access.
• Strengthening foundations to existing buildings or under bridges.
• Undertaking pre-demolition piling within existing basements.
• Size of Martello rigs enable plant to be craned into existing basements and excavations.
• Drilling through obstacles (man-made and natural)
• Drilling with polymer or bentonite where deep ground support is required
Environmental impact
• Low vibration and noise
• Able to form high capacity piles without the need to pre-demolish existing structures
• Removal of excavated spoil required
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