| Title | Development of empirical CPTu-Vs correlations for post-glacial sediments in Southern Quebec, Canada, in consideration of soil type and geological setting |
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| Author | Salsabili, M; Saeidi, A; Rouleau, A; Nastev, M |
| Source | Soil Dynamics and Earthquake Engineering vol. 154, 107131, 2022 p. 1-16, https://doi.org/10.1016/j.soildyn.2021.107131 |
| Image |  |
| Year | 2022 |
| Alt Series | Natural Resources Canada, Contribution Series 20210626 |
| Publisher | Elsevier |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Quebec |
| NTS | 31I/07; 21L/14; 22D/06; 22D/11 |
| Lat/Long WENS | -76.0000 -68.0000 49.0000 45.0000 |
| Subjects | Science and Technology; sedimentology; soils science; piezometric levels; seismic waves; seismic velocities; regressions; regression analyses; correlations; soil types; soil studies |
| Illustrations | tables; location maps; distribution diagrams; plots; figures; seismic profiles |
| Program | Public Safety
Geoscience Rapid Risk Assessment |
| Released | 2022 01 05 |
| Abstract | The correlation of shear wave velocity (Vs) with piezocone penetration test (CPTu) parameters is investigated in post-glacial sediments along the St. Lawrence and Saguenay rivers, Southern Quebec,
Canada. The compiled database includes 991 CPTu-Vs measurements at 40 sites. The objectives are to examine the applicability of existing CPTu-Vs correlations, identify the main CPTu parameters and develop specific CPTu-Vs correlations that account
for the effects of soil type (sandy or clayey) and geological setting (Champlain or Laflamme sea sediments). Results reveal that the application of existing correlations is biased in varying degrees, denoting a need for site-specific correlations for
the study area. Multivariate regression analyses confirm the importance of cone tip resistance and depth as Vs predictors assisted by normalised pore pressure and soil behaviour type index. Consideration of soil type and geological setting helps
reduce uncertainties in CPTu-Vs correlations for fine-grained soils. |
| Summary | (Plain Language Summary, not published)
The correlation between the shear wave velocity (Vs) and the piezocone penetration test (CPTu) parameters is investigated in post-glacial sediments
along the St. Lawrence and Saguenay rivers in Southern Quebec, Canada. The compiled database includes 991 CPTu-Vs measurements at 40 sites. The objective was to examine the applicability of existing CPTu-Vs correlations, identify the most important
CPTu parameters and to develop specific CPTu-Vs correlations that account for the effects of the soil type (sandy or clayey) and geological environment (Champlain or Laflamme sea sediments). Results indicate that the application of existing
correlations is imprecise in a varying degree raising the need for site-specific correlations. The multivariate regression analysis confirmed the cone tip resistance and depth of measurement as major predictors for Vs, accompanied by the normalised
pore pressure and the soil behaviour type index. The consideration of the soil type and geological settings helped to further reduce the uncertainties in CPTu-Vs correlations in fine-grained soils. |
| GEOSCAN ID | 329577 |
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