hi..it is best to go with group of pile foundations to carry the structural column loads of a high rise building with firm strata available at smaller depth..or if site area is not sufficient to accommodate number piles as per design than it is better to choose piled raft..
Raft is provided to prevent unequal settlement and if there are variations in Geotechnical properties of soil we also go for raft. However for very high rise structures the raft alone will not be sufficient and load has to be transferred through pile friction and bearing by landing piles deep enough.
If you choose pile of driven type, it will be a very nice choice for soft soil. You can also choose raft foundation, but before that you have to improve the soft soil by any soil improvement technique for example, sand compaction pile.
for soft soil it is recommended to have pile foundation with considerable depth
In case of soft soils where undrained strength is much lesser (less than 14kPa) and depth of the soft soil is much deeper, It would be better for raft supported by the rigid pile and intermediate stone columns with pervious concrete. The rigid piles need to design and intermediate distance have pervious columns will release the excess pore water pressure in long term condition.
From structural point of view it will depend on nature of the soil, load distribution and many other factors. This must be fully sorted before construction to avoid consequences.
Check these:
http://environment.uwe.ac.uk/geocal/foundations/Fountype.htm
https://www.premierguarantee.com/media/1232/technicalplusmanualplusv9pluschapterplus5compressed.pdf
Check this it happened in the UK. University of Sheffield building project that cost £65 millions has to be torn down.
https://thetab.com/uk/sheffield/2020/07/23/watch-builders-begin-to-tear-down-new-65m-uni-social-sciences-building-44883
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