PIL/General/TBT-PIL-010

Piling Near Existing Structures

Piling & Foundations › General › Piling Near Existing Structures

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Piling near existing structures requires careful planning to prevent damage from vibration and ground movement.
Vibration from driven piles can crack masonry, damage glazing, and affect sensitive equipment.
Ground displacement from piling can cause settlement or heave affecting adjacent foundations.
A pre-condition survey of nearby structures should be completed before piling commences.
Vibration monitoring equipment must be installed on structures within the zone of influence.
Trigger levels for vibration are set in accordance with BS 5228-2 and agreed with stakeholders.
CFA and rotary bored piles generally produce less vibration than driven or impact piles.
Services below ground near existing structures must be located before any piling operation.
Temporary works may be needed to support adjacent structures during the piling programme.
Communication with building occupants and neighbours is essential before and during piling works.

Prevent structural damage	Vibration and ground movement from piling can cause cracking, settlement, or failure of adjacent buildings and infrastructure.
Legal liability	Damage to third-party property can result in costly claims, injunctions, and project delays.
Community relations	Noise, vibration, and disruption affect neighbours — proactive communication reduces complaints and disputes.

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See also: Piling Safety Awareness | Noise and Vibration From Piling

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