Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills
This paper describes a procedure for settlement prediction of shallow foundations on carbonate sands, but it is fully applicable and valid for siliceous sands. For practical purposes, the design of shallow foundations resting on medium dense and dense granular soils is typically governed by limiting...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-02-01
|
| Series: | Soils and Foundations |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0038080623001373 |
| _version_ | 1797304646300073984 |
|---|---|
| author | V. Fioravante D. Giretti A. Masella G. Vaciago |
| author_facet | V. Fioravante D. Giretti A. Masella G. Vaciago |
| author_sort | V. Fioravante |
| collection | DOAJ |
| description | This paper describes a procedure for settlement prediction of shallow foundations on carbonate sands, but it is fully applicable and valid for siliceous sands. For practical purposes, the design of shallow foundations resting on medium dense and dense granular soils is typically governed by limiting settlement to tolerable values. Predicting foundation settlement is therefore important, but in standard practice it is necessarily based on indirect (and therefore often conservative) determinations of soil compressibility (or modulus), due to the intrinsic difficulties in obtaining direct measurements.While numerical analyses incorporating non-linear soil behaviour may be a preferred method for computing expected total and differential settlement of shallow foundations of given geometry and stiffness on sand under static loading, the method described in this paper consists of a simplified and expeditious method based on equivalent linear elasticity. The method uses: i) the elastic soil stiffness profile at small strain, E0(z) obtained from the shear wave velocity as the primary measurement of deformability and ii) the reduction in modulus as a function of strain magnitude, E(ε) to account for stiffness non-linearity. The beneficial effect on the soil initial stiffness of the applied footing load is also considered. The method was developed as an on-site tool for checking the compaction of hydraulic fills made of carbonate sand to form artificial islands, but its application can be extended to other natural and anthropogenic coarse-grained materials. |
| first_indexed | 2024-03-08T00:13:25Z |
| format | Article |
| id | doaj.art-c2b96b63ca884e65820ba2a61837f1c9 |
| institution | Directory Open Access Journal |
| issn | 2524-1788 |
| language | English |
| last_indexed | 2024-03-08T00:13:25Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Soils and Foundations |
| spelling | doaj.art-c2b96b63ca884e65820ba2a61837f1c92024-02-17T06:37:09ZengElsevierSoils and Foundations2524-17882024-02-01641101408Settlement prediction of shallow foundations for quality controls of sandy hydraulic fillsV. Fioravante0D. Giretti1A. Masella2G. Vaciago3Engineering Department, University of Ferrara, ItalyDepartment of Engineering and Applied Science, University of Bergamo, Italy; Corresponding author.Studio Geotecnico Italiano, Milano, ItalyStudio Geotecnico Italiano, Milano, ItalyThis paper describes a procedure for settlement prediction of shallow foundations on carbonate sands, but it is fully applicable and valid for siliceous sands. For practical purposes, the design of shallow foundations resting on medium dense and dense granular soils is typically governed by limiting settlement to tolerable values. Predicting foundation settlement is therefore important, but in standard practice it is necessarily based on indirect (and therefore often conservative) determinations of soil compressibility (or modulus), due to the intrinsic difficulties in obtaining direct measurements.While numerical analyses incorporating non-linear soil behaviour may be a preferred method for computing expected total and differential settlement of shallow foundations of given geometry and stiffness on sand under static loading, the method described in this paper consists of a simplified and expeditious method based on equivalent linear elasticity. The method uses: i) the elastic soil stiffness profile at small strain, E0(z) obtained from the shear wave velocity as the primary measurement of deformability and ii) the reduction in modulus as a function of strain magnitude, E(ε) to account for stiffness non-linearity. The beneficial effect on the soil initial stiffness of the applied footing load is also considered. The method was developed as an on-site tool for checking the compaction of hydraulic fills made of carbonate sand to form artificial islands, but its application can be extended to other natural and anthropogenic coarse-grained materials.http://www.sciencedirect.com/science/article/pii/S0038080623001373SettlementShallow foundationsEquivalent linear elasticityLand reclamationShear wave velocityHydraulic fill |
| spellingShingle | V. Fioravante D. Giretti A. Masella G. Vaciago Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills Soils and Foundations Settlement Shallow foundations Equivalent linear elasticity Land reclamation Shear wave velocity Hydraulic fill |
| title | Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills |
| title_full | Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills |
| title_fullStr | Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills |
| title_full_unstemmed | Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills |
| title_short | Settlement prediction of shallow foundations for quality controls of sandy hydraulic fills |
| title_sort | settlement prediction of shallow foundations for quality controls of sandy hydraulic fills |
| topic | Settlement Shallow foundations Equivalent linear elasticity Land reclamation Shear wave velocity Hydraulic fill |
| url | http://www.sciencedirect.com/science/article/pii/S0038080623001373 |
| work_keys_str_mv | AT vfioravante settlementpredictionofshallowfoundationsforqualitycontrolsofsandyhydraulicfills AT dgiretti settlementpredictionofshallowfoundationsforqualitycontrolsofsandyhydraulicfills AT amasella settlementpredictionofshallowfoundationsforqualitycontrolsofsandyhydraulicfills AT gvaciago settlementpredictionofshallowfoundationsforqualitycontrolsofsandyhydraulicfills |