The guidelines categorize construction rules based on subsurface geology and engineering requirements. Below is a verified technical comparison of standard deep foundation systems governed by the GEOSS framework:
When working in tight spaces or near existing buildings, a temporary retaining wall is advised to contain ground movement.
: Protective measures like relief wells and pre-boring are recommended to minimize the impact of piling—especially jacked piling—on nearby sensitive structures. The GEOSS guidelines on local practices for pile
The GEOSS guidelines on local practices for pile foundation design and construction verified provide essential, locally adapted methodologies for safe and efficient deep foundation construction in challenging ground conditions. By combining these practices with Eurocode 7 standards, geotechnical engineers can ensure the structural integrity of high-rise buildings, while maintaining robust, verified, and reliable construction protocols. Next Steps
[Phase 1: Subsurface Investigation] ──> [Phase 2: Eurocode 7 Geotechnical Design] ──> [Phase 3: Field Testing & Verification] 1. Comprehensive Subsurface Investigation contractors must employ specific mitigations:
Modern practices under these guidelines prioritize empirical data from local sites.
at the boundary to control ground movement—a standard GeoSS recommendation for sensitive sites. When it came time to verify the piles, they utilized the Kentledge Method groundwater table levels
between international design philosophy (like Eurocode 7) and local experience.
Local practices codified through GEOSS specify minimum requirements for borehole density and depth. For deep foundation design, investigations must extend to depths well below the proposed pile toe level to account for variations in pile design and to identify any underlying weak layers. A well-planned subsurface exploration program should result in data that clearly identifies stratigraphy, unusual conditions, groundwater table levels, and allows for laboratory assessments of soil strength and compressibility.
The GEOSS guidelines heavily govern the physical execution of piling to shield existing infrastructure from ground deformation, excessive vibrations, and lateral displacement. When installing jacked piles or driven piles in sensitive urban areas, contractors must employ specific mitigations:
