Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading

In order to study the fractal characteristics of the pomegranate biotite schist under the effect of blasting loads, a one-dimensional SHPB impact test was carried out to test the dynamic compressive strength, damage morphology, fracture energy dissipation density, and other parameters of the rocks u...

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Autores principales:	Jianguo Wang, Ting Zuo, Xianglong Li, Zihao Tao, Jun Ma
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/404f70e59c7d47549f6825c09f7c9566
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spelling	oai:doaj.org-article:404f70e59c7d47549f6825c09f7c95662021-11-22T01:10:46ZStudy on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading1468-812310.1155/2021/1570160https://doaj.org/article/404f70e59c7d47549f6825c09f7c95662021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/1570160https://doaj.org/toc/1468-8123In order to study the fractal characteristics of the pomegranate biotite schist under the effect of blasting loads, a one-dimensional SHPB impact test was carried out to test the dynamic compressive strength, damage morphology, fracture energy dissipation density, and other parameters of the rocks under different strain rates; besides, sieve tests were conducted to count the mass fractal characteristics of the crushed masses under different strain rates to calculate the fractal dimension of the crushed rock D. Finally, the relationships between fractal dimension and dynamic compressive strength, crushing characteristics, and energy dissipation characteristics were analysed. The results show that under different impact loads, the strain rate effect of the rock is significant and the dynamic compressive strength increases with the increasing strain rate, and they show a multiplicative power relationship. The higher the strain rate of the rock, the deeper the fragmentation and the higher the fractal dimension, and the fractal dimension and rock crushing energy density are multiplied by a power relationship. By performing the comparative analysis of the pomegranate biotite schist, a reasonable strain rate range of 78.75 s-1~82.51 s-1 and a reasonable crushing energy consumption density range of 0.78 J·cm-3~0.92 J·cm-3 were determined. This research provides a great reference for the analysis of dynamic crushing mechanism, crushing block size distribution, and crushing energy consumption of the roadway surrounding rock.Jianguo WangTing ZuoXianglong LiZihao TaoJun MaHindawi-WileyarticleGeologyQE1-996.5ENGeofluids, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geology QE1-996.5
spellingShingle	Geology QE1-996.5 Jianguo Wang Ting Zuo Xianglong Li Zihao Tao Jun Ma Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading
description	In order to study the fractal characteristics of the pomegranate biotite schist under the effect of blasting loads, a one-dimensional SHPB impact test was carried out to test the dynamic compressive strength, damage morphology, fracture energy dissipation density, and other parameters of the rocks under different strain rates; besides, sieve tests were conducted to count the mass fractal characteristics of the crushed masses under different strain rates to calculate the fractal dimension of the crushed rock D. Finally, the relationships between fractal dimension and dynamic compressive strength, crushing characteristics, and energy dissipation characteristics were analysed. The results show that under different impact loads, the strain rate effect of the rock is significant and the dynamic compressive strength increases with the increasing strain rate, and they show a multiplicative power relationship. The higher the strain rate of the rock, the deeper the fragmentation and the higher the fractal dimension, and the fractal dimension and rock crushing energy density are multiplied by a power relationship. By performing the comparative analysis of the pomegranate biotite schist, a reasonable strain rate range of 78.75 s-1~82.51 s-1 and a reasonable crushing energy consumption density range of 0.78 J·cm-3~0.92 J·cm-3 were determined. This research provides a great reference for the analysis of dynamic crushing mechanism, crushing block size distribution, and crushing energy consumption of the roadway surrounding rock.
format	article
author	Jianguo Wang Ting Zuo Xianglong Li Zihao Tao Jun Ma
author_facet	Jianguo Wang Ting Zuo Xianglong Li Zihao Tao Jun Ma
author_sort	Jianguo Wang
title	Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading
title_short	Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading
title_full	Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading
title_fullStr	Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading
title_full_unstemmed	Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading
title_sort	study on the fractal characteristics of the pomegranate biotite schist under impact loading
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/404f70e59c7d47549f6825c09f7c9566
work_keys_str_mv	AT jianguowang studyonthefractalcharacteristicsofthepomegranatebiotiteschistunderimpactloading AT tingzuo studyonthefractalcharacteristicsofthepomegranatebiotiteschistunderimpactloading AT xianglongli studyonthefractalcharacteristicsofthepomegranatebiotiteschistunderimpactloading AT zihaotao studyonthefractalcharacteristicsofthepomegranatebiotiteschistunderimpactloading AT junma studyonthefractalcharacteristicsofthepomegranatebiotiteschistunderimpactloading
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Study on the Fractal Characteristics of the Pomegranate Biotite Schist under Impact Loading

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