Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand
Since most natural deposits are a combination of sand and fine grains and as man-made geotechnical structures like tailing dams have a high percentage of cohesive and cohesionless fine grains, the study of cyclic and post cyclic behavior of these soils is essential. For saturated sands, the effect o...
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| Format: | Article |
| Language: | fas |
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Sharif University of Technology
2022-08-01
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| Series: | مهندسی عمران شریف |
| Subjects: | |
| Online Access: | https://sjce.journals.sharif.edu/article_22735_e87d89b6145eb7c8e9f9d733bf27ecdc.pdf |
| _version_ | 1797742440008908800 |
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| author | Saeideh Mohammadi A. Naeini |
| author_facet | Saeideh Mohammadi A. Naeini |
| author_sort | Saeideh Mohammadi |
| collection | DOAJ |
| description | Since most natural deposits are a combination of sand and fine grains and as man-made geotechnical structures like tailing dams have a high percentage of cohesive and cohesionless fine grains, the study of cyclic and post cyclic behavior of these soils is essential. For saturated sands, the effect of non-plastic fine grains (silts) on their monotonic and cyclic behavior has been investigated. A majority of studies are related to monotonic and cyclic loading and post-cyclic loading has received less attention. In this paper, the effects of silt content and different Cyclic Stress Ratios on the cyclic and post-cyclic behavior of saturated loose sand are investigated. The sand used in this study is Firuzkuh silty crushing sand, which is abbreviated to sand . All samples were prepared so that their relative density was about after consolidating. The experiments were performed using the saturated cyclic triaxial apparatus. Suitable preparation of specimens was one of the most important factors in the accurate performance of triaxial tests. The cyclic and post cyclic tests on mixtures made of sand with silt were undertaken following the recommendation of D4254. Changes in pore pressure coefficient, liquefaction resistance, stress-strain curves, and stress path in clean and silty sand ( silt) were recorded. Results show that the tested samples become liquefied in a smaller number of cycles by increasing the until they show softening behavior at larger when effective stress rapidly drops to zero. In lower , the stress-strain curve is collapsible while in larger , loops expand and they indicate more damping of materials. |
| first_indexed | 2024-03-12T14:40:51Z |
| format | Article |
| id | doaj.art-3306f86f53cc42a7a166681fdc301a70 |
| institution | Directory Open Access Journal |
| issn | 2676-4768 2676-4776 |
| language | fas |
| last_indexed | 2024-03-12T14:40:51Z |
| publishDate | 2022-08-01 |
| publisher | Sharif University of Technology |
| record_format | Article |
| series | مهندسی عمران شریف |
| spelling | doaj.art-3306f86f53cc42a7a166681fdc301a702023-08-16T07:04:12ZfasSharif University of Technologyمهندسی عمران شریف2676-47682676-47762022-08-0138.22.1758510.24200/j30.2022.58786.300322735Effect of silt content on cyclic and post-cyclic behavior of saturated loose sandSaeideh Mohammadi0A. Naeini1Department of Civil Engineering, Imam Khomeini International University, Qazvin, IranDept. of Civil Engineering Imam Khomeini International UniversitySince most natural deposits are a combination of sand and fine grains and as man-made geotechnical structures like tailing dams have a high percentage of cohesive and cohesionless fine grains, the study of cyclic and post cyclic behavior of these soils is essential. For saturated sands, the effect of non-plastic fine grains (silts) on their monotonic and cyclic behavior has been investigated. A majority of studies are related to monotonic and cyclic loading and post-cyclic loading has received less attention. In this paper, the effects of silt content and different Cyclic Stress Ratios on the cyclic and post-cyclic behavior of saturated loose sand are investigated. The sand used in this study is Firuzkuh silty crushing sand, which is abbreviated to sand . All samples were prepared so that their relative density was about after consolidating. The experiments were performed using the saturated cyclic triaxial apparatus. Suitable preparation of specimens was one of the most important factors in the accurate performance of triaxial tests. The cyclic and post cyclic tests on mixtures made of sand with silt were undertaken following the recommendation of D4254. Changes in pore pressure coefficient, liquefaction resistance, stress-strain curves, and stress path in clean and silty sand ( silt) were recorded. Results show that the tested samples become liquefied in a smaller number of cycles by increasing the until they show softening behavior at larger when effective stress rapidly drops to zero. In lower , the stress-strain curve is collapsible while in larger , loops expand and they indicate more damping of materials.https://sjce.journals.sharif.edu/article_22735_e87d89b6145eb7c8e9f9d733bf27ecdc.pdfsilty sandliquefaction resistancecyclic triaxial testpost cyclic |
| spellingShingle | Saeideh Mohammadi A. Naeini Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand مهندسی عمران شریف silty sand liquefaction resistance cyclic triaxial test post cyclic |
| title | Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand |
| title_full | Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand |
| title_fullStr | Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand |
| title_full_unstemmed | Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand |
| title_short | Effect of silt content on cyclic and post-cyclic behavior of saturated loose sand |
| title_sort | effect of silt content on cyclic and post cyclic behavior of saturated loose sand |
| topic | silty sand liquefaction resistance cyclic triaxial test post cyclic |
| url | https://sjce.journals.sharif.edu/article_22735_e87d89b6145eb7c8e9f9d733bf27ecdc.pdf |
| work_keys_str_mv | AT saeidehmohammadi effectofsiltcontentoncyclicandpostcyclicbehaviorofsaturatedloosesand AT anaeini effectofsiltcontentoncyclicandpostcyclicbehaviorofsaturatedloosesand |