A simple method for the determination of sensitivity to density changes in sand liquefaction
Fully saturated loose coarse-grained soils are known to be prone to liquefaction. Conventional laboratory tests for soil liquefaction include usually cyclic testing in triaxial apparatus. However, such investigations are complicated and time-consuming. The objective of the outlined work is to evalu...
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| Format: | Article |
| Language: | English |
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Centre Mersenne
2021-10-01
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| Series: | Open Geomechanics |
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| Online Access: | https://opengeomechanics.centre-mersenne.org/ojs/article/view/13 |
| _version_ | 1818028213884944384 |
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| author | Bozana Bacic |
| author_facet | Bozana Bacic |
| author_sort | Bozana Bacic |
| collection | DOAJ |
| description |
Fully saturated loose coarse-grained soils are known to be prone to liquefaction. Conventional laboratory tests for soil liquefaction include usually cyclic testing in triaxial apparatus. However, such investigations are complicated and time-consuming. The objective of the outlined work is to evaluate the sensitivity of different sands to density change with respect to liquefaction using a relatively simple method. This method enables a fast setup of the tested specimen and a subsequent investigation of the pore water pressure build-up during cyclic shearing within a short time. The results have confirmed a good repeatability of the new method as well as an expected dependence of the pore pressure build-up on initial density. Validation of the method was performed using the results of cyclic triaxial tests. A good agreement between both methods was observed regarding the rate of the pore pressure increase with initial density. Furthermore, it was shown that the initial fabric of soil has a larger impact on the pore pressure build-up during cyclic loading than the relative density.
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| first_indexed | 2024-12-10T05:00:14Z |
| format | Article |
| id | doaj.art-0f85212a81e14bce875b4124c86700ce |
| institution | Directory Open Access Journal |
| issn | 2644-9676 |
| language | English |
| last_indexed | 2024-12-10T05:00:14Z |
| publishDate | 2021-10-01 |
| publisher | Centre Mersenne |
| record_format | Article |
| series | Open Geomechanics |
| spelling | doaj.art-0f85212a81e14bce875b4124c86700ce2022-12-22T02:01:25ZengCentre MersenneOpen Geomechanics2644-96762021-10-012110.5802/ogeo.6A simple method for the determination of sensitivity to density changes in sand liquefactionBozana Bacic0TU Dresden, Institut fuer Geotechnik Fully saturated loose coarse-grained soils are known to be prone to liquefaction. Conventional laboratory tests for soil liquefaction include usually cyclic testing in triaxial apparatus. However, such investigations are complicated and time-consuming. The objective of the outlined work is to evaluate the sensitivity of different sands to density change with respect to liquefaction using a relatively simple method. This method enables a fast setup of the tested specimen and a subsequent investigation of the pore water pressure build-up during cyclic shearing within a short time. The results have confirmed a good repeatability of the new method as well as an expected dependence of the pore pressure build-up on initial density. Validation of the method was performed using the results of cyclic triaxial tests. A good agreement between both methods was observed regarding the rate of the pore pressure increase with initial density. Furthermore, it was shown that the initial fabric of soil has a larger impact on the pore pressure build-up during cyclic loading than the relative density. https://opengeomechanics.centre-mersenne.org/ojs/article/view/13Liquefaction, laboratory tests, cyclic shear test, cyclic triaxial test, soil fabric |
| spellingShingle | Bozana Bacic A simple method for the determination of sensitivity to density changes in sand liquefaction Open Geomechanics Liquefaction, laboratory tests, cyclic shear test, cyclic triaxial test, soil fabric |
| title | A simple method for the determination of sensitivity to density changes in sand liquefaction |
| title_full | A simple method for the determination of sensitivity to density changes in sand liquefaction |
| title_fullStr | A simple method for the determination of sensitivity to density changes in sand liquefaction |
| title_full_unstemmed | A simple method for the determination of sensitivity to density changes in sand liquefaction |
| title_short | A simple method for the determination of sensitivity to density changes in sand liquefaction |
| title_sort | simple method for the determination of sensitivity to density changes in sand liquefaction |
| topic | Liquefaction, laboratory tests, cyclic shear test, cyclic triaxial test, soil fabric |
| url | https://opengeomechanics.centre-mersenne.org/ojs/article/view/13 |
| work_keys_str_mv | AT bozanabacic asimplemethodforthedeterminationofsensitivitytodensitychangesinsandliquefaction AT bozanabacic simplemethodforthedeterminationofsensitivitytodensitychangesinsandliquefaction |