Model of pile-frozen soil interaction in a closed form

The object of the research is pile-soil interaction under freezing and frost heaving. Modeling of pile-soil interaction on the basis of joint solution of static equilibrium equations, physical equations for stresses and equation of thermal conductivity is considered. No such solutions have been foun...

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Main Author: Tretiakova Olga
Format: Article
Language:English
Published: Peter the Great St. Petersburg Polytechnic University 2022-11-01
Series:Magazine of Civil Engineering
Subjects:
Online Access:http://engstroy.spbstu.ru/article/2022.115.01/
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author Tretiakova Olga
author_facet Tretiakova Olga
author_sort Tretiakova Olga
collection DOAJ
description The object of the research is pile-soil interaction under freezing and frost heaving. Modeling of pile-soil interaction on the basis of joint solution of static equilibrium equations, physical equations for stresses and equation of thermal conductivity is considered. No such solutions have been found in existing publications. In this study, a model of pile-soil interaction in the form of a closed analytical solution with respect to the pile geometry was developed. Methods of continuum mechanics and elasticity theory were used. The model was a mathematical record of the equilibrium of forces acting on the pile. It was reduced to second-order algebraic equations with respect to its geometric parameters. The static equations of force equilibrium written in quadratic form related the geometric parameters of the pile to the stress-strain state and the thermal characteristics of the soil. Physical equations for heaving stresses and the thermal conductivity equation closed the problem. The model was developed as applied to a pile with an upper reverse taper. It reflected the performance of the pile during freezing and frost heaving and allowed determining its required geometric parameters under the given soil and climatic conditions.
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spelling doaj.art-b8f6b68bbe974ca4a95abae50c8d36012022-12-22T03:46:53ZengPeter the Great St. Petersburg Polytechnic UniversityMagazine of Civil Engineering2712-81722022-11-011150710.34910/MCE.115.120714726Model of pile-frozen soil interaction in a closed formTretiakova Olga0Perm National Research Polytechnic UniversityThe object of the research is pile-soil interaction under freezing and frost heaving. Modeling of pile-soil interaction on the basis of joint solution of static equilibrium equations, physical equations for stresses and equation of thermal conductivity is considered. No such solutions have been found in existing publications. In this study, a model of pile-soil interaction in the form of a closed analytical solution with respect to the pile geometry was developed. Methods of continuum mechanics and elasticity theory were used. The model was a mathematical record of the equilibrium of forces acting on the pile. It was reduced to second-order algebraic equations with respect to its geometric parameters. The static equations of force equilibrium written in quadratic form related the geometric parameters of the pile to the stress-strain state and the thermal characteristics of the soil. Physical equations for heaving stresses and the thermal conductivity equation closed the problem. The model was developed as applied to a pile with an upper reverse taper. It reflected the performance of the pile during freezing and frost heaving and allowed determining its required geometric parameters under the given soil and climatic conditions.http://engstroy.spbstu.ru/article/2022.115.01/modelsoilfrost heavingpile geometrythermal conductivitystress-strain statestatic equilibrium equation
spellingShingle Tretiakova Olga
Model of pile-frozen soil interaction in a closed form
Magazine of Civil Engineering
model
soil
frost heaving
pile geometry
thermal conductivity
stress-strain state
static equilibrium equation
title Model of pile-frozen soil interaction in a closed form
title_full Model of pile-frozen soil interaction in a closed form
title_fullStr Model of pile-frozen soil interaction in a closed form
title_full_unstemmed Model of pile-frozen soil interaction in a closed form
title_short Model of pile-frozen soil interaction in a closed form
title_sort model of pile frozen soil interaction in a closed form
topic model
soil
frost heaving
pile geometry
thermal conductivity
stress-strain state
static equilibrium equation
url http://engstroy.spbstu.ru/article/2022.115.01/
work_keys_str_mv AT tretiakovaolga modelofpilefrozensoilinteractioninaclosedform