Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section

The cracks of the large-area concrete structure in the underground railway section directly affect the structural safety and service life. How to take effective measures to control concrete shrinkage cracks is a difficulty to be solved in the project.In view of the crack control demand of large-area...

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Main Author: Yu Meilin
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:MATEC Web of Conferences
Subjects:
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2023/09/matecconf_amme2023_01016.pdf
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author Yu Meilin
author_facet Yu Meilin
author_sort Yu Meilin
collection DOAJ
description The cracks of the large-area concrete structure in the underground railway section directly affect the structural safety and service life. How to take effective measures to control concrete shrinkage cracks is a difficulty to be solved in the project.In view of the crack control demand of large-area concrete structure cracks in a vehicle section of Wuhan metro, based on the existing engineering cases of large-area concrete structure, shrinkage crack mechanism and control strategies, the corresponding measures are proposed to prevent crack production from two aspects of concrete raw materials and construction technology.The results show that through the regulation of concrete materials,maintenance,casting,post-pouring belt, temperature monitoring and other links, the reduction of shrinkage cracks of large-area concrete structure in the underground railway section is realized.These results can provide references for similar projects to lessen cracks, ensure structural safety and construction quality.
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spelling doaj.art-a8ed500d9952446988a0719820f6b86d2023-07-21T09:55:58ZengEDP SciencesMATEC Web of Conferences2261-236X2023-01-013820101610.1051/matecconf/202338201016matecconf_amme2023_01016Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway sectionYu MeilinThe cracks of the large-area concrete structure in the underground railway section directly affect the structural safety and service life. How to take effective measures to control concrete shrinkage cracks is a difficulty to be solved in the project.In view of the crack control demand of large-area concrete structure cracks in a vehicle section of Wuhan metro, based on the existing engineering cases of large-area concrete structure, shrinkage crack mechanism and control strategies, the corresponding measures are proposed to prevent crack production from two aspects of concrete raw materials and construction technology.The results show that through the regulation of concrete materials,maintenance,casting,post-pouring belt, temperature monitoring and other links, the reduction of shrinkage cracks of large-area concrete structure in the underground railway section is realized.These results can provide references for similar projects to lessen cracks, ensure structural safety and construction quality.https://www.matec-conferences.org/articles/matecconf/pdf/2023/09/matecconf_amme2023_01016.pdfunderground railway sectionlarge-area of concreteshrinkage crackcontrol strategystructural safety
spellingShingle Yu Meilin
Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section
MATEC Web of Conferences
underground railway section
large-area of concrete
shrinkage crack
control strategy
structural safety
title Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section
title_full Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section
title_fullStr Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section
title_full_unstemmed Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section
title_short Mechanism and control strategy of large-area concrete shrinkage cracks in the underground railway section
title_sort mechanism and control strategy of large area concrete shrinkage cracks in the underground railway section
topic underground railway section
large-area of concrete
shrinkage crack
control strategy
structural safety
url https://www.matec-conferences.org/articles/matecconf/pdf/2023/09/matecconf_amme2023_01016.pdf
work_keys_str_mv AT yumeilin mechanismandcontrolstrategyoflargeareaconcreteshrinkagecracksintheundergroundrailwaysection