Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study

Taking the Zigaojian tunnel, Hangzhou–Huangshan high-speed railway, China, as background, the rock mass structure effect on smooth blasting quality was studied. Four rock mass structures were determined on the basis of the information collected on the tunnel site. Smooth blasting finite element mode...

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Autores principales:	Jianxiu Wang, Ansheng Cao, Jiaxing Liu, Huanran Wang, Xiaotian Liu, Huboqiang Li, Yuanwei Sun, Yanxia Long, Fan Wu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	tunnel smooth blasting rock mass structure effect overbreak and underbreak field test orthogonal numerical test Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/0cbb8f05e4e14f8fbe0135ce173c2344
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spelling	oai:doaj.org-article:0cbb8f05e4e14f8fbe0135ce173c23442021-11-25T16:37:38ZNumerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study10.3390/app1122107612076-3417https://doaj.org/article/0cbb8f05e4e14f8fbe0135ce173c23442021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10761https://doaj.org/toc/2076-3417Taking the Zigaojian tunnel, Hangzhou–Huangshan high-speed railway, China, as background, the rock mass structure effect on smooth blasting quality was studied. Four rock mass structures were determined on the basis of the information collected on the tunnel site. Smooth blasting finite element models were established using LS-DYNA. The accuracy of the numerical calculation model was verified by comparing the overbreak and underbreak between the numerical simulation and monitoring. Orthogonal numerical test was used to study the rock mass structure effect through single factor and main effect analysis methods. With the decrease in rock mass integrity, the smooth blasting overbreak of tunnels with massive integrity structure, massive structure, layered structure, and cataclastic structure increased. For massive integrity structure and cataclastic structure, the peripheral hole spacing should be emphatically considered. Meanwhile, in massive structure and layered structure, the included angle and spacing of structural planes had a great influence on the smooth blasting quality. The research results could provide a reference to improve the quality of similar tunnel smooth blasting.Jianxiu WangAnsheng CaoJiaxing LiuHuanran WangXiaotian LiuHuboqiang LiYuanwei SunYanxia LongFan WuMDPI AGarticletunnel smooth blastingrock mass structure effectoverbreak and underbreakfield testorthogonal numerical testTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10761, p 10761 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	tunnel smooth blasting rock mass structure effect overbreak and underbreak field test orthogonal numerical test Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	tunnel smooth blasting rock mass structure effect overbreak and underbreak field test orthogonal numerical test Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Jianxiu Wang Ansheng Cao Jiaxing Liu Huanran Wang Xiaotian Liu Huboqiang Li Yuanwei Sun Yanxia Long Fan Wu Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study
description	Taking the Zigaojian tunnel, Hangzhou–Huangshan high-speed railway, China, as background, the rock mass structure effect on smooth blasting quality was studied. Four rock mass structures were determined on the basis of the information collected on the tunnel site. Smooth blasting finite element models were established using LS-DYNA. The accuracy of the numerical calculation model was verified by comparing the overbreak and underbreak between the numerical simulation and monitoring. Orthogonal numerical test was used to study the rock mass structure effect through single factor and main effect analysis methods. With the decrease in rock mass integrity, the smooth blasting overbreak of tunnels with massive integrity structure, massive structure, layered structure, and cataclastic structure increased. For massive integrity structure and cataclastic structure, the peripheral hole spacing should be emphatically considered. Meanwhile, in massive structure and layered structure, the included angle and spacing of structural planes had a great influence on the smooth blasting quality. The research results could provide a reference to improve the quality of similar tunnel smooth blasting.
format	article
author	Jianxiu Wang Ansheng Cao Jiaxing Liu Huanran Wang Xiaotian Liu Huboqiang Li Yuanwei Sun Yanxia Long Fan Wu
author_facet	Jianxiu Wang Ansheng Cao Jiaxing Liu Huanran Wang Xiaotian Liu Huboqiang Li Yuanwei Sun Yanxia Long Fan Wu
author_sort	Jianxiu Wang
title	Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study
title_short	Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study
title_full	Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study
title_fullStr	Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study
title_full_unstemmed	Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study
title_sort	numerical simulation of rock mass structure effect on tunnel smooth blasting quality: a case study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0cbb8f05e4e14f8fbe0135ce173c2344
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_version_	1718413059578396672

Numerical Simulation of Rock Mass Structure Effect on Tunnel Smooth Blasting Quality: A Case Study

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