Managing settlement and potential liquefaction.
Pile foundation design and construction represent one of the most critical yet technically challenging aspects of geotechnical engineering. When subsurface conditions are non-uniform, rock formations contain hidden cavities, or soil strata exhibit unpredictable behaviour, the margin for error narrows considerably. It is precisely in such environments that the —working in close partnership with the Building and Construction Authority (BCA), the Institution of Engineers Singapore (IES), and the Association of Consulting Engineers Singapore (ACES)—has developed a comprehensive suite of guidelines that codify local best practices for pile foundation design and construction. Managing settlement and potential liquefaction
: GEOSS promotes uniform data formats for soil stratigraphy and borehole logs. It is precisely in such environments that the
GeoSS has also addressed the topic of negative skin friction—a critical design consideration for piles installed through soft compressible soils that settle after pile installation. A GeoSS event seminar from 25 January 2011 discussed common mistakes in designing piles subjected to negative skin friction, addressing five key issues: distinguishing between drag load and downdrag, and other assumptions that frequently lead to design errors. A GeoSS event seminar from 25 January 2011
The guidelines are structured into five interdependent modules. Below, we break down each module with a focus on local adaptation.