Effect of opening on the shear behavior of granular materials in direct shear test

Byeong Su Kim; Satoru Shibuya; Seong Wan Park; Shoji Kato

doi:10.1007/s12205-012-1518-4

Effect of opening on the shear behavior of granular materials in direct shear test

Byeong Su Kim, Satoru Shibuya, Seong Wan Park, Shoji Kato

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

This paper examines the effect of the opening between the shear boxes on the shear behavior in the direct shear box test (H=20 mm×D=60 mm) under a constant vertical stress using seven types of granular material. It is observed that the magnitude of shear strength and dilatancy decreases due to the outflow of sample with an increase in the opening. The two notions of the Threshold Point (TP) as the limit opening size and the Threshold Line (TL) offering the guideline of opening size is defined according to the mean particle size of soil samples. However, similar shear behaviors were observed regardless of the opening size because there was no outflow of sample through applying the Teflon sheet in the direct shear box tests for Toyoura sand. Finally, the shear mode on the circular specimen applying the Teflon sheet is also examined in comparison with the results from other tests.

Original language	English
Pages (from-to)	1132-1142
Number of pages	11
Journal	KSCE Journal of Civil Engineering
Volume	16
Issue number	7
DOIs	https://doi.org/10.1007/s12205-012-1518-4
Publication status	Published - Nov 2012
Externally published	Yes

Keywords

Teflon sheet
direct shear box test
opening size
outflow of sample
shear mode

ASJC Scopus subject areas

Civil and Structural Engineering

Access to Document

10.1007/s12205-012-1518-4

Cite this

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abstract = "This paper examines the effect of the opening between the shear boxes on the shear behavior in the direct shear box test (H=20 mm×D=60 mm) under a constant vertical stress using seven types of granular material. It is observed that the magnitude of shear strength and dilatancy decreases due to the outflow of sample with an increase in the opening. The two notions of the Threshold Point (TP) as the limit opening size and the Threshold Line (TL) offering the guideline of opening size is defined according to the mean particle size of soil samples. However, similar shear behaviors were observed regardless of the opening size because there was no outflow of sample through applying the Teflon sheet in the direct shear box tests for Toyoura sand. Finally, the shear mode on the circular specimen applying the Teflon sheet is also examined in comparison with the results from other tests.",

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AU - Shibuya, Satoru

AU - Park, Seong Wan

AU - Kato, Shoji

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N2 - This paper examines the effect of the opening between the shear boxes on the shear behavior in the direct shear box test (H=20 mm×D=60 mm) under a constant vertical stress using seven types of granular material. It is observed that the magnitude of shear strength and dilatancy decreases due to the outflow of sample with an increase in the opening. The two notions of the Threshold Point (TP) as the limit opening size and the Threshold Line (TL) offering the guideline of opening size is defined according to the mean particle size of soil samples. However, similar shear behaviors were observed regardless of the opening size because there was no outflow of sample through applying the Teflon sheet in the direct shear box tests for Toyoura sand. Finally, the shear mode on the circular specimen applying the Teflon sheet is also examined in comparison with the results from other tests.

AB - This paper examines the effect of the opening between the shear boxes on the shear behavior in the direct shear box test (H=20 mm×D=60 mm) under a constant vertical stress using seven types of granular material. It is observed that the magnitude of shear strength and dilatancy decreases due to the outflow of sample with an increase in the opening. The two notions of the Threshold Point (TP) as the limit opening size and the Threshold Line (TL) offering the guideline of opening size is defined according to the mean particle size of soil samples. However, similar shear behaviors were observed regardless of the opening size because there was no outflow of sample through applying the Teflon sheet in the direct shear box tests for Toyoura sand. Finally, the shear mode on the circular specimen applying the Teflon sheet is also examined in comparison with the results from other tests.

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KW - outflow of sample

KW - shear mode

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Effect of opening on the shear behavior of granular materials in direct shear test

Abstract

Keywords

ASJC Scopus subject areas

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