Relating wave frequency and pore fluid homogeneity in quasi-saturated sands
P-wave velocity is regularly proposed as a proxy for water saturation when studying quasisaturated soils. However, several authors have underlined that this velocity can only be reliably correlated to water saturation if the pore fluid is “homogeneous”. Using bender elements to measure compression w...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/19/e3sconf_unsat2023_03005.pdf |
| _version_ | 1797835324669296640 |
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| author | Flood-Page Guillaume Boutonnier Luc Pereira Jean-Michel |
| author_facet | Flood-Page Guillaume Boutonnier Luc Pereira Jean-Michel |
| author_sort | Flood-Page Guillaume |
| collection | DOAJ |
| description | P-wave velocity is regularly proposed as a proxy for water saturation when studying quasisaturated soils. However, several authors have underlined that this velocity can only be reliably correlated to water saturation if the pore fluid is “homogeneous”. Using bender elements to measure compression wave velocity in quasi-saturated Fontainebleau sand, we show it is highly sensitive to both saturation and frequency. The characteristic length of pore pressure diffusion is used to explain the link between frequency, gas distribution and P-wave velocity. This criterion is shown to be fairly reliable for assessing the homogeneity of a pore fluid distribution in quasi-saturated Fontainebleau sand. |
| first_indexed | 2024-04-09T14:52:19Z |
| format | Article |
| id | doaj.art-a3a77f85c68740eba8e38c51993296fc |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-09T14:52:19Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-a3a77f85c68740eba8e38c51993296fc2023-05-02T09:28:19ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013820300510.1051/e3sconf/202338203005e3sconf_unsat2023_03005Relating wave frequency and pore fluid homogeneity in quasi-saturated sandsFlood-Page Guillaume0Boutonnier Luc1Pereira Jean-Michel2EgisEgisNavier, Ecole des Ponts, Univ Gustave Eiffel, CNRSP-wave velocity is regularly proposed as a proxy for water saturation when studying quasisaturated soils. However, several authors have underlined that this velocity can only be reliably correlated to water saturation if the pore fluid is “homogeneous”. Using bender elements to measure compression wave velocity in quasi-saturated Fontainebleau sand, we show it is highly sensitive to both saturation and frequency. The characteristic length of pore pressure diffusion is used to explain the link between frequency, gas distribution and P-wave velocity. This criterion is shown to be fairly reliable for assessing the homogeneity of a pore fluid distribution in quasi-saturated Fontainebleau sand.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/19/e3sconf_unsat2023_03005.pdf |
| spellingShingle | Flood-Page Guillaume Boutonnier Luc Pereira Jean-Michel Relating wave frequency and pore fluid homogeneity in quasi-saturated sands E3S Web of Conferences |
| title | Relating wave frequency and pore fluid homogeneity in quasi-saturated sands |
| title_full | Relating wave frequency and pore fluid homogeneity in quasi-saturated sands |
| title_fullStr | Relating wave frequency and pore fluid homogeneity in quasi-saturated sands |
| title_full_unstemmed | Relating wave frequency and pore fluid homogeneity in quasi-saturated sands |
| title_short | Relating wave frequency and pore fluid homogeneity in quasi-saturated sands |
| title_sort | relating wave frequency and pore fluid homogeneity in quasi saturated sands |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/19/e3sconf_unsat2023_03005.pdf |
| work_keys_str_mv | AT floodpageguillaume relatingwavefrequencyandporefluidhomogeneityinquasisaturatedsands AT boutonnierluc relatingwavefrequencyandporefluidhomogeneityinquasisaturatedsands AT pereirajeanmichel relatingwavefrequencyandporefluidhomogeneityinquasisaturatedsands |