Geoss Good Practice | For Installation Of Jacked Foundation Piles In Singapore Link

The transition to Eurocode 7 has shifted design philosophy from prescriptive safety factors to a statistical, reliability-based approach. GEOSS has conducted multiple EC7 briefing sessions with BCA to raise awareness on geotechnical investigations and determination of characteristic values.

is then released to zero and subsequently re-applied (without pause) to ensure the pile has settled into its final seating. C. Pile Group Sequence

A successful jacked piling project begins with a comprehensive Soil Investigation (SI). Singapore's subsurface conditions can vary drastically within a single construction site.

: Gives direct feedback on soil resistance by reading hydraulic pressure gauges. Verification and Quality Control The transition to Eurocode 7 has shifted design

In formations like the Bukit Timah Granite or Fort Canning Boulder Bed, piles can strike isolated, unweathered boulders. Terminating a pile directly on a floating boulder can cause uneven settlement or localized overstressing within a pile cap group.

Based on the GEOSS guidelines and good practice recommendations, the following are recommended:

Maintain real-time digital logging of force, depth, and alignment. Identify structural anomalies immediately. : Gives direct feedback on soil resistance by

The GEOSS standard is notably stricter on ground movement and verticality, recognizing Singapore's density of underground infrastructure.

By following these good practices and guidelines, contractors and engineers can ensure that jacked foundation piles are installed efficiently and effectively in Singapore, providing a reliable and safe foundation for buildings and structures.

The hydraulic clamps must exert uniform pressure on the pile section to prevent localized crushing of the concrete or steel shell. 3. Maintaining Verticality and Alignment conducting standard penetration tests (SPT)

Before commencing the installation of jacked foundation piles, it is essential to conduct thorough site investigations to determine the subsurface conditions, soil properties, and potential hazards. This includes drilling boreholes, conducting standard penetration tests (SPT), and collecting soil samples to determine the soil's geotechnical properties. The site investigation report should provide essential information on the soil's stratigraphy, groundwater levels, and potential liquefaction risks.

: Piles must reach the designated bearing layer specified in the geological model.

While the GEOS guidelines and good practices outlined in this article provide a comprehensive framework for the installation of jacked foundation piles in Singapore, there are limitations and areas for future research, including:

GEOSS Good Practice for Installation of Jacked Foundation Piles in Singapore Introduction

Operates via continuous hydraulic pressure rather than percussive force.