Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks

In this study, the uniaxial compression test and PFC 2D numerical simulation were carried out on the artificial rock specimen with T-shaped prefabricated fractures. The effects of the lengths l1, l2 of the main fractures, the length l3 of the secondary fracture, and the angle β between the secondary...

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Main Authors: Xiong Liangxiao, Haijun Chen, Zhongyuan Xu, Deye Hu
Format: Article
Language:English
Published: Polish Academy of Sciences 2023-06-01
Series:Archives of Civil Engineering
Subjects:
Online Access:https://journals.pan.pl/Content/127751/PDF/art17_int.pdf
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author Xiong Liangxiao
Haijun Chen
Zhongyuan Xu
Deye Hu
author_facet Xiong Liangxiao
Haijun Chen
Zhongyuan Xu
Deye Hu
author_sort Xiong Liangxiao
collection DOAJ
description In this study, the uniaxial compression test and PFC 2D numerical simulation were carried out on the artificial rock specimen with T-shaped prefabricated fractures. The effects of the lengths l1, l2 of the main fractures, the length l3 of the secondary fracture, and the angle β between the secondary fracture and the loading direction on the uniaxial compressive strength and crack evolution law of specimen were studied. The research results show that the change of l1, l2 and β has obvious effect on the compressive strength and crack growth of the specimen, but the change of l3 has little effect on the compressive strength of the specimen. When l3 = 40 mm and l1 ≠ l2, the angle β influences on the crack propagation and failure mode of the specimen.
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spelling doaj.art-1822194c4db14f66b82357ca8de6d1a92023-06-30T10:08:31ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452300-31032023-06-01vol. 69No 2227244https://doi.org/10.24425/ace.2023.145265Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracksXiong Liangxiao0https://orcid.org/0000-0002-6366-5187Haijun Chen1https://orcid.org/0000-0003-0094-9649Zhongyuan Xu2https://orcid.org/0000-0003-4303-1870Deye Hu3https://orcid.org/0000-0001-8132-0812School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaGeotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing, 210029, ChinaFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaIn this study, the uniaxial compression test and PFC 2D numerical simulation were carried out on the artificial rock specimen with T-shaped prefabricated fractures. The effects of the lengths l1, l2 of the main fractures, the length l3 of the secondary fracture, and the angle β between the secondary fracture and the loading direction on the uniaxial compressive strength and crack evolution law of specimen were studied. The research results show that the change of l1, l2 and β has obvious effect on the compressive strength and crack growth of the specimen, but the change of l3 has little effect on the compressive strength of the specimen. When l3 = 40 mm and l1 ≠ l2, the angle β influences on the crack propagation and failure mode of the specimen.https://journals.pan.pl/Content/127751/PDF/art17_int.pdfartificial rock speciment-shaped crackuniaxial compression test
spellingShingle Xiong Liangxiao
Haijun Chen
Zhongyuan Xu
Deye Hu
Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks
Archives of Civil Engineering
artificial rock specimen
t-shaped crack
uniaxial compression test
title Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks
title_full Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks
title_fullStr Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks
title_full_unstemmed Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks
title_short Uniaxial compression test and numerical simulation of rock-like specimen with T-Shaped cracks
title_sort uniaxial compression test and numerical simulation of rock like specimen with t shaped cracks
topic artificial rock specimen
t-shaped crack
uniaxial compression test
url https://journals.pan.pl/Content/127751/PDF/art17_int.pdf
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AT haijunchen uniaxialcompressiontestandnumericalsimulationofrocklikespecimenwithtshapedcracks
AT zhongyuanxu uniaxialcompressiontestandnumericalsimulationofrocklikespecimenwithtshapedcracks
AT deyehu uniaxialcompressiontestandnumericalsimulationofrocklikespecimenwithtshapedcracks