Geoss Good Practice For Installation Of Jacked Foundation Piles In Singapore ((exclusive)) -

To mitigate these environmental impacts, the published industry guidelines for alternative piling technologies. Jacked foundation piles use hydraulic machinery to press high-capacity piles into the soil. This method offers a vibration-free, low-noise, and air-pollution-free alternative.

Abstract This paper examines best-practice recommendations—hereafter referred to as “GEOSS Good Practice”—for the installation of jacked foundation piles in Singapore. It synthesizes geotechnical, structural, environmental, and construction-management considerations specific to Singapore’s geology, regulatory context, and urban constraints. Recommendations are practical, prescriptive, and intended for design engineers, contractors, site supervisors, and project owners involved in piled foundation works where jacking (hydraulically driven, displacement or pre-bored) methods are employed. This is the core of the "Good Practice"

This is the core of the "Good Practice" guide, covering: and urban constraints. Recommendations are practical

Artificially inflates or reduces short-term resistance readings. and intended for design engineers

Before any piling work begins, a pre-construction survey is mandatory to document the condition of adjacent buildings. This establishes a baseline for any claims of damage and is a core component of a good practice impact assessment.

In areas with known subsurface hazards—such as the limestone terrain of western Singapore—BCA, IES, ACES, and GeoSS have jointly issued new guidelines that bring together industry best practices into a single, risk-based framework. Key recommendations include:

Unlike impact hammers, jacked piles allow . GEOSS defines three control modes: