Settlement of foundation bases considering vibrocreep of sandy soils

Practice shows that the foundations of buildings located on a sandy base and transmitting dynamic loads to it receive undamped settlement, causing damage to structures and even the collapse of buildings, which best shows the relevance of the affected problem. The purpose of this work is to study and...

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Main Authors: Ter-Martirosyan Armen, Shebunyaev Alexander
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Subjects:
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/47/e3sconf_form2023_02005.pdf
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author Ter-Martirosyan Armen
Shebunyaev Alexander
author_facet Ter-Martirosyan Armen
Shebunyaev Alexander
author_sort Ter-Martirosyan Armen
collection DOAJ
description Practice shows that the foundations of buildings located on a sandy base and transmitting dynamic loads to it receive undamped settlement, causing damage to structures and even the collapse of buildings, which best shows the relevance of the affected problem. The purpose of this work is to study and improve methods for quantifying the stress-strain state of sandy foundations operated under the influence of dynamic loads, taking into account the vibration creep of sandy soil. The authors conducted a laboratory study of the vibration creep of sandy soil under vibration on an experimental design of a soil dynamic ball viscometer and an analytical solution to the problem of foundation settlement under dynamic load. According to the results of laboratory studies, the authors have identified the relationship between the value of the viscosity coefficient η0 and the intensity of tangential τi and mean stresses σm, which is later used in analytical calculation. Taking into account the propagation of static stresses according to the dependencies of Kolosov G.V., the propagation of vibrations in plan and depth according to the dependencies of Savinov O.A., the change in the viscosity coefficient depending on the intensity of vibration acceleration according to Barkan D.D., Ter-Martirosyan A.Z., Sobolev E.S., a quantitative assessment of the settlement of the base was carried out. The dependences obtained by the analytical method are consistent with the tray and field results of early studies by other authors.
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spelling doaj.art-708922213a484c5dabd9216a17d359ad2023-08-10T13:16:24ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014100200510.1051/e3sconf/202341002005e3sconf_form2023_02005Settlement of foundation bases considering vibrocreep of sandy soilsTer-Martirosyan Armen0Shebunyaev Alexander1Moscow State University of Civil EngineeringMoscow State University of Civil EngineeringPractice shows that the foundations of buildings located on a sandy base and transmitting dynamic loads to it receive undamped settlement, causing damage to structures and even the collapse of buildings, which best shows the relevance of the affected problem. The purpose of this work is to study and improve methods for quantifying the stress-strain state of sandy foundations operated under the influence of dynamic loads, taking into account the vibration creep of sandy soil. The authors conducted a laboratory study of the vibration creep of sandy soil under vibration on an experimental design of a soil dynamic ball viscometer and an analytical solution to the problem of foundation settlement under dynamic load. According to the results of laboratory studies, the authors have identified the relationship between the value of the viscosity coefficient η0 and the intensity of tangential τi and mean stresses σm, which is later used in analytical calculation. Taking into account the propagation of static stresses according to the dependencies of Kolosov G.V., the propagation of vibrations in plan and depth according to the dependencies of Savinov O.A., the change in the viscosity coefficient depending on the intensity of vibration acceleration according to Barkan D.D., Ter-Martirosyan A.Z., Sobolev E.S., a quantitative assessment of the settlement of the base was carried out. The dependences obtained by the analytical method are consistent with the tray and field results of early studies by other authors.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/47/e3sconf_form2023_02005.pdfvibrocreep of sandy soildynamic load on the foundationcyclic loading of the sandy baseviscosity of sandy soildynamic settlement
spellingShingle Ter-Martirosyan Armen
Shebunyaev Alexander
Settlement of foundation bases considering vibrocreep of sandy soils
E3S Web of Conferences
vibrocreep of sandy soil
dynamic load on the foundation
cyclic loading of the sandy base
viscosity of sandy soil
dynamic settlement
title Settlement of foundation bases considering vibrocreep of sandy soils
title_full Settlement of foundation bases considering vibrocreep of sandy soils
title_fullStr Settlement of foundation bases considering vibrocreep of sandy soils
title_full_unstemmed Settlement of foundation bases considering vibrocreep of sandy soils
title_short Settlement of foundation bases considering vibrocreep of sandy soils
title_sort settlement of foundation bases considering vibrocreep of sandy soils
topic vibrocreep of sandy soil
dynamic load on the foundation
cyclic loading of the sandy base
viscosity of sandy soil
dynamic settlement
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/47/e3sconf_form2023_02005.pdf
work_keys_str_mv AT termartirosyanarmen settlementoffoundationbasesconsideringvibrocreepofsandysoils
AT shebunyaevalexander settlementoffoundationbasesconsideringvibrocreepofsandysoils