Stability of dam slopes taking into account anisotropy
This paper presents the results of experimental studies on the deformation and strength anisotropy of gravel-pebble soils used in soil dams. During stabilometric tests, varying shear angles were obtained for stone at different orientations of soil particles in the working chamber, whether horizontal...
| 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 |
| Subjects: | |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/47/e3sconf_form2023_05001.pdf |
| _version_ | 1797745646910832640 |
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| author | Bestuzheva Alexandra Abduloev Alisher |
| author_facet | Bestuzheva Alexandra Abduloev Alisher |
| author_sort | Bestuzheva Alexandra |
| collection | DOAJ |
| description | This paper presents the results of experimental studies on the deformation and strength anisotropy of gravel-pebble soils used in soil dams. During stabilometric tests, varying shear angles were obtained for stone at different orientations of soil particles in the working chamber, whether horizontal or vertical. As the hydrostatic pressure in the working chamber increased to 0.8 MPa, a reduction of shear angles of a stone by 8-12 degrees depending on the direction of layering of soil was observed. The authors compiled a calculation program called OTKOS_Ani (Delphi), which considers the strength anisotropy of pebble soils for calculating the stability of slopes of soil dams and slopes. The slope calculations were carried out for different design and height of stone and stone-soil dams, and correction factors for taking into account the strength anisotropy in slope stability calculations, kан, were obtained depending on the type, height, and density of gravel-pebble soil stacking in the dam body. The results showed that considering the anisotropy of strength properties in the calculations of slope stability of earth dams reduces the safety factors by 3-11%. This should be taken into account when selecting the design of earth dams with prisms of gravel-pebble soils. |
| first_indexed | 2024-03-12T15:26:12Z |
| format | Article |
| id | doaj.art-efaaecbc2aec4da98c5d8fc1c93eca7f |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T15:26:12Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-efaaecbc2aec4da98c5d8fc1c93eca7f2023-08-10T13:16:31ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014100500110.1051/e3sconf/202341005001e3sconf_form2023_05001Stability of dam slopes taking into account anisotropyBestuzheva Alexandra0Abduloev Alisher1Moscow State University of Civil EngineeringMoscow State University of Civil EngineeringThis paper presents the results of experimental studies on the deformation and strength anisotropy of gravel-pebble soils used in soil dams. During stabilometric tests, varying shear angles were obtained for stone at different orientations of soil particles in the working chamber, whether horizontal or vertical. As the hydrostatic pressure in the working chamber increased to 0.8 MPa, a reduction of shear angles of a stone by 8-12 degrees depending on the direction of layering of soil was observed. The authors compiled a calculation program called OTKOS_Ani (Delphi), which considers the strength anisotropy of pebble soils for calculating the stability of slopes of soil dams and slopes. The slope calculations were carried out for different design and height of stone and stone-soil dams, and correction factors for taking into account the strength anisotropy in slope stability calculations, kан, were obtained depending on the type, height, and density of gravel-pebble soil stacking in the dam body. The results showed that considering the anisotropy of strength properties in the calculations of slope stability of earth dams reduces the safety factors by 3-11%. This should be taken into account when selecting the design of earth dams with prisms of gravel-pebble soils.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/47/e3sconf_form2023_05001.pdfdeformation anisotropystrength anisotropypassport of gravel-pebble soiltriaxial experimentsslope stabilitystress-strain state of soil dams |
| spellingShingle | Bestuzheva Alexandra Abduloev Alisher Stability of dam slopes taking into account anisotropy E3S Web of Conferences deformation anisotropy strength anisotropy passport of gravel-pebble soil triaxial experiments slope stability stress-strain state of soil dams |
| title | Stability of dam slopes taking into account anisotropy |
| title_full | Stability of dam slopes taking into account anisotropy |
| title_fullStr | Stability of dam slopes taking into account anisotropy |
| title_full_unstemmed | Stability of dam slopes taking into account anisotropy |
| title_short | Stability of dam slopes taking into account anisotropy |
| title_sort | stability of dam slopes taking into account anisotropy |
| topic | deformation anisotropy strength anisotropy passport of gravel-pebble soil triaxial experiments slope stability stress-strain state of soil dams |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/47/e3sconf_form2023_05001.pdf |
| work_keys_str_mv | AT bestuzhevaalexandra stabilityofdamslopestakingintoaccountanisotropy AT abduloevalisher stabilityofdamslopestakingintoaccountanisotropy |