On the decay of strength in Guilin red clay with cracks

In order to research the effect of cracks in red clay on shear strength through dry-wet cycle test, the experimenters used imaging software and a mathematical model to determine fractal dimension and crack ratio of surface cracks in red clay in Guilin, China. After each dry-wet cycle, direct shear...

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Main Authors: Yi Li, Keneng Zhang, Baochen Liu, Zongyuan Pan
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2015-10-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_66.pdf
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author Yi Li
Keneng Zhang
Baochen Liu
Zongyuan Pan
author_facet Yi Li
Keneng Zhang
Baochen Liu
Zongyuan Pan
author_sort Yi Li
collection DOAJ
description In order to research the effect of cracks in red clay on shear strength through dry-wet cycle test, the experimenters used imaging software and a mathematical model to determine fractal dimension and crack ratio of surface cracks in red clay in Guilin, China. After each dry-wet cycle, direct shear tests were carried out on the sample, and such variables as matrix suction on the crack propagation process of red clay were analyzed. The mechanics model was established and obtained the critical condition of soil cracks. The results show that with the increase in the number of dry-wet cycles the shear strength of the samples would decrease. But the rule of shear strength of sample 3 is slightly different from samples 1 and 2. The shear strength of red clay has a good correlation with fractal dimension and crack ratio, which could be an identification index of the strength of red clay
format Article
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institution Kabale University
issn 1971-8993
1971-8993
language English
publishDate 2015-10-01
publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-97f283797c7f48e0b85ce9f64255ae142025-01-03T00:38:55ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932015-10-0193459960710.3221/IGF-ESIS.34.66On the decay of strength in Guilin red clay with cracksYi Li0Keneng Zhang1Baochen Liu2Zongyuan Pan3Central South University,ChinaCentral South University,ChinaGuilin University of Technology,ChinaInstitute of Karst Geology,ChinaIn order to research the effect of cracks in red clay on shear strength through dry-wet cycle test, the experimenters used imaging software and a mathematical model to determine fractal dimension and crack ratio of surface cracks in red clay in Guilin, China. After each dry-wet cycle, direct shear tests were carried out on the sample, and such variables as matrix suction on the crack propagation process of red clay were analyzed. The mechanics model was established and obtained the critical condition of soil cracks. The results show that with the increase in the number of dry-wet cycles the shear strength of the samples would decrease. But the rule of shear strength of sample 3 is slightly different from samples 1 and 2. The shear strength of red clay has a good correlation with fractal dimension and crack ratio, which could be an identification index of the strength of red clayhttp://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_66.pdfRed clayDry-wet cycleFractal dimensionCrack ratioShear strength
spellingShingle Yi Li
Keneng Zhang
Baochen Liu
Zongyuan Pan
On the decay of strength in Guilin red clay with cracks
Fracture and Structural Integrity
Red clay
Dry-wet cycle
Fractal dimension
Crack ratio
Shear strength
title On the decay of strength in Guilin red clay with cracks
title_full On the decay of strength in Guilin red clay with cracks
title_fullStr On the decay of strength in Guilin red clay with cracks
title_full_unstemmed On the decay of strength in Guilin red clay with cracks
title_short On the decay of strength in Guilin red clay with cracks
title_sort on the decay of strength in guilin red clay with cracks
topic Red clay
Dry-wet cycle
Fractal dimension
Crack ratio
Shear strength
url http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_66.pdf
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AT kenengzhang onthedecayofstrengthinguilinredclaywithcracks
AT baochenliu onthedecayofstrengthinguilinredclaywithcracks
AT zongyuanpan onthedecayofstrengthinguilinredclaywithcracks