Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing

The accuracy of the initial ground stress balance determines the accuracy of the finite element analysis of geotechnical problems. The traditional ground stress balance method has a good balance effect for simple geotechnical models but has strong limitations when the structure and soil interact wit...

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Main Author: Ge Wang
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2022/9359268
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author Ge Wang
author_facet Ge Wang
author_sort Ge Wang
collection DOAJ
description The accuracy of the initial ground stress balance determines the accuracy of the finite element analysis of geotechnical problems. The traditional ground stress balance method has a good balance effect for simple geotechnical models but has strong limitations when the structure and soil interact with each other, the geometry of the model is complex, or the constraints are complicated. To deal with such problems, this paper proposes a general ground stress balance method based on geometric tracing by iteratively superimposing the static displacement field of the numerical model with the initial node coordinates of the numerical model. Two commonly used methods as well as the proposed method were tested with a model which contains both soil elements and structural elements and a case study. Test results show that the proposed method is capable of dealing with a complex model in which the commonly used methods fail to. Furthermore, the proposed ground stress balance method was demonstrated to be clear and has rapid convergence and high accuracy for complex stratum-structure geotechnical problems.
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institution Kabale University
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publishDate 2022-01-01
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series Advances in Civil Engineering
spelling doaj-art-49a2a49db9c64a8cb5df27b0650acd972025-02-03T05:53:50ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/9359268Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric TracingGe Wang0Xi’an Traffic Engineering InstituteThe accuracy of the initial ground stress balance determines the accuracy of the finite element analysis of geotechnical problems. The traditional ground stress balance method has a good balance effect for simple geotechnical models but has strong limitations when the structure and soil interact with each other, the geometry of the model is complex, or the constraints are complicated. To deal with such problems, this paper proposes a general ground stress balance method based on geometric tracing by iteratively superimposing the static displacement field of the numerical model with the initial node coordinates of the numerical model. Two commonly used methods as well as the proposed method were tested with a model which contains both soil elements and structural elements and a case study. Test results show that the proposed method is capable of dealing with a complex model in which the commonly used methods fail to. Furthermore, the proposed ground stress balance method was demonstrated to be clear and has rapid convergence and high accuracy for complex stratum-structure geotechnical problems.http://dx.doi.org/10.1155/2022/9359268
spellingShingle Ge Wang
Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing
Advances in Civil Engineering
title Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing
title_full Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing
title_fullStr Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing
title_full_unstemmed Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing
title_short Research on the Method of Ground Stress Balance under Complex Conditions Based on Geometric Tracing
title_sort research on the method of ground stress balance under complex conditions based on geometric tracing
url http://dx.doi.org/10.1155/2022/9359268
work_keys_str_mv AT gewang researchonthemethodofgroundstressbalanceundercomplexconditionsbasedongeometrictracing