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Foundation Design

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FOUNDATION DESIGN
0-0-2021
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STUDENT ID
CIVE 3510 Foundation Engineering Fundamentals

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Abstract
This report requires two foundation designs: a shallow foundation and a deep foundation for the three-
storey multi-storey office steel-framed building.
According to the requirements shown in the outline and the Eurocode 2 and Eurocode 7 methods, we
designed a 3.5m wide, 3.5m long, and 0.9m thick square footing in designing a shallow foundation.
For checking the shallow foundation design, we calculated the ultimate limit state (ULS) and serviceability
limit state (SLS) to ensure the safety and serviceability of foundations. Several design methods result in
different load combinations, contact pressures, and bearing capacities. We used ULS, Brinch Hansen
equations to calculate bearing capacity to ensure foundation safety. Then, by utilizing Steinbrenner’s
method and consolidation method, we get to determine the immediate and consolidated settlements, as well
as the estimated total and differential settlement.
A 1m thick, 3.5m square pile cap with 4 7m deep 600mm square solid drilled piles (deep piled foundation)
has been designed in the second task. The base of the pile cap is placed 2 meters above the datum.
The ULS and SLS checks for deep foundation were completed by calculating the frictional resistances of
the shaft and the down drag force (negative skin friction). SLS checks the usual parameters tested on the
shallow foundation. The formation of the piles is at 1.1m above the datum, while the base of the virtual
piled raft foundation is at 3.867m below the datum. This virtual foundation spreads the load to a ratio of
1H:4V.
The shallow foundation is more economical than the deep foundation. On the other hand, deep
foundations are more recommended than shallow foundations because shallow foundations require more
soil improvement, and it has more shallow settlements.

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0-0-2021 FOUNDATION DESIGN CIVE 3510 Foundation Engineering Fundamentals NAME STUDENT ID Abstract This report requires two foundation designs: a shallow foundation and a deep foundation for the threestorey multi-storey office steel-framed building. According to the requirements shown in the outline and the Eurocode 2 and Eurocode 7 methods, we designed a 3.5m wide, 3.5m long, and 0.9m thick square footing in designing a shallow foundation. For checking the shallow foundation design, we calculated the ultimate limit state (ULS) and serviceability limit state (SLS) to ensure the safety and serviceability of foundations. Several design methods result in different load combinations, contact pressures, and bearing capacities. We used ULS, Brinch Hansen equations to calculate bearing capacity to ensure foundation safety. Then, by utilizing Steinbrenner’s method and consolidation method, we get to determine the immediate and consolidated settlements, as well as the estimated total and differential settlement. A 1m thick, 3.5m square pile cap with 4 7m deep 600mm square solid drilled piles (deep piled foundation) has been designed in the second task. The base of the pile cap is placed 2 meters above the datum. The ULS and SLS checks for deep foundation were completed by calculating the frictional resistances of the shaft and the down drag force (negative skin friction). SLS checks the usual parameters tested on the shallow foundation. The formation of the piles is at 1.1m above ...
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Anonymous
Very useful material for studying!

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