Consolidation for compensated raft foundation
Consolidation for compensated raft foundation
(OP)
Dear soil experts,
We have to calculate settlements for some foundations of different types within an industrial project and we are facing a very soft clay layer of 7.5m thick at 5m depth.
In some cases the applied loads are almost equal, or sometimes even less than the excavated soil load.
Is consolidation still a problem in this case ? (may be due to clay swell and void ratio change) In this case, there should be another formula (other than Sc = Cc/(1+e0) log〖((P0+ΔP)/P0)〗) to calculate this kind of settlement.
Thank you for your help
We have to calculate settlements for some foundations of different types within an industrial project and we are facing a very soft clay layer of 7.5m thick at 5m depth.
In some cases the applied loads are almost equal, or sometimes even less than the excavated soil load.
Is consolidation still a problem in this case ? (may be due to clay swell and void ratio change) In this case, there should be another formula (other than Sc = Cc/(1+e0) log〖((P0+ΔP)/P0)〗) to calculate this kind of settlement.
Thank you for your help





RE: Consolidation for compensated raft foundation
RE: Consolidation for compensated raft foundation
You can refer to the book "Foundation Engineering for Difficult Subsoil Conditions" by Leonardo Zeevaert. This book has a full chapter about compensated foundations. Dr. Zeevaert was an expert on this type of foundations which was used to deal with the very soft clays in Mexico City. For compensated foundations, this book also talk about potential issues for settlement outside the excavation.
RE: Consolidation for compensated raft foundation
RE: Consolidation for compensated raft foundation
Dik
RE: Consolidation for compensated raft foundation