Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement

Displacement monitoring data modeling is important for evaluating the performance and health conditions of concrete dams. Conventional displacement monitoring models of concrete dams decompose the total displacement into the water pressure component, temperature component, and time-dependent compone...

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Autores principales:	Jiingmei Zhang, Chongshi Gu
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/55fad878aee84f7b9cae48749de094e4
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id	oai:doaj.org-article:55fad878aee84f7b9cae48749de094e4
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spelling	oai:doaj.org-article:55fad878aee84f7b9cae48749de094e42021-11-22T01:10:30ZCrack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement1563-514710.1155/2021/6950538https://doaj.org/article/55fad878aee84f7b9cae48749de094e42021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/6950538https://doaj.org/toc/1563-5147Displacement monitoring data modeling is important for evaluating the performance and health conditions of concrete dams. Conventional displacement monitoring models of concrete dams decompose the total displacement into the water pressure component, temperature component, and time-dependent component. And the crack-induced displacement is generally incorporated into the time-dependent component, thus weakening the interpretability of the model. In the practical engineering modeling, some significant explaining variables are selected while the others are eliminated by applying commonly used regression methods which occasionally show instability. This paper proposes a crack-considered elastic net monitoring model of concrete dam displacement to improve the interpretability and stability. In this model, the mathematical expression of the crack-induced displacement component is derived through the analysis of large surface crack’s effect on the concrete dam displacement to improve the interpretability of the model. Moreover, the elastic net method with better stability is used to solve the crack-considered displacement monitoring model. Sequentially, the proposed model is applied to analyze the radial displacement of a gravity arch dam. The results demonstrate that the proposed model contributes to more reasonable explaining variables’ selection and better coefficients’ estimation and also indicate better interpretability and higher predictive precision.Jiingmei ZhangChongshi GuHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040MathematicsQA1-939ENMathematical Problems in Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939 Jiingmei Zhang Chongshi Gu Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement
description	Displacement monitoring data modeling is important for evaluating the performance and health conditions of concrete dams. Conventional displacement monitoring models of concrete dams decompose the total displacement into the water pressure component, temperature component, and time-dependent component. And the crack-induced displacement is generally incorporated into the time-dependent component, thus weakening the interpretability of the model. In the practical engineering modeling, some significant explaining variables are selected while the others are eliminated by applying commonly used regression methods which occasionally show instability. This paper proposes a crack-considered elastic net monitoring model of concrete dam displacement to improve the interpretability and stability. In this model, the mathematical expression of the crack-induced displacement component is derived through the analysis of large surface crack’s effect on the concrete dam displacement to improve the interpretability of the model. Moreover, the elastic net method with better stability is used to solve the crack-considered displacement monitoring model. Sequentially, the proposed model is applied to analyze the radial displacement of a gravity arch dam. The results demonstrate that the proposed model contributes to more reasonable explaining variables’ selection and better coefficients’ estimation and also indicate better interpretability and higher predictive precision.
format	article
author	Jiingmei Zhang Chongshi Gu
author_facet	Jiingmei Zhang Chongshi Gu
author_sort	Jiingmei Zhang
title	Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement
title_short	Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement
title_full	Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement
title_fullStr	Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement
title_full_unstemmed	Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement
title_sort	crack-considered elastic net monitoring model of concrete dam displacement
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/55fad878aee84f7b9cae48749de094e4
work_keys_str_mv	AT jiingmeizhang crackconsideredelasticnetmonitoringmodelofconcretedamdisplacement AT chongshigu crackconsideredelasticnetmonitoringmodelofconcretedamdisplacement
_version_	1718418339575889920

Crack-Considered Elastic Net Monitoring Model of Concrete Dam Displacement

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