scholarly journals VERIFICATION OF RESIDUAL STATE AND DETERMINATION OF RESIDUAL STRENGTH IN RING SHEAR TESTS

2003 ◽  
pp. 223-228
Author(s):  
Naoki SAKAI ◽  
Hirofumi TOYOTA ◽  
Kouichi NAKAMURA ◽  
Mitsutaka SUGIMOTO
Keyword(s):  
Residual Strength ◽  
Shear Tests ◽  
Ring Shear ◽  
Ring Shear Tests

scholarly journals Rate Effects on Peak and Residual Strengths of Overconsolidated Clay in Ring Shear Tests

2021 ◽  
Author(s):  
Nguyen Thanh Duong ◽  
Motoyuki Suzuki
Keyword(s):  
Shear Strength ◽  
Residual Strength ◽  
Clayey Soil ◽  
Shear Displacement ◽  
Shear Tests ◽  
Shear Rates ◽  
Ring Shear ◽  
Wide Range ◽  
Rate Effects ◽  
Ring Shear Tests

Overconsolidated (OC) clay soil is widely distributed in landslide slopes. This soil is often fissured, jointed, contains slickensides, and is prone to sliding. Thus, the shear strength behavior of OC clayey soil is complicated and has received much attention in the literature and in practice in terms of evaluating and predicting landslide stability. However, the behavior of the shear strength of OC clayey soil at different shear rates, as seen in ring shear tests, is still only understood to a limited extent and should be examined further, especially in terms of the residual strength characteristics. In this study, a number of ring shear tests were conducted on kaolin clay at overconsolidation ratios (OCRs) ranging from 1 to 6 under different shear displacement rates in the wide range of 0.02 mm/min to 20.0 mm/min to investigate the shear behavior and rate dependency of the shear strength of OC clay. Variations in the cohesion and friction angles of OC clay under different shear rates were also examined. The results indicated that the rate effects on the peak strength of OC and normally consolidated (NC) clays are opposite at fast shear displacement rates. At the residual state, as with NC clay, the positive rate effect on the residual strength is also exhibited in OC clay, but at a lower magnitude. Regarding the shear strength parameters, the variations in the cohesion and friction angles of OC clay at different shear rates were found to be different at peak and residual states.

scholarly journals Modeling Granular Crushing in Ring Shear Tests: Experimental and Numerical Analyses

2006 ◽  
Vol 46 (2) ◽  
pp. 147-157 ◽  
Author(s):  
Sebastian Lobo-Guerrero ◽  
Luise Vallejo
Keyword(s):  
Numerical Analyses ◽  
Shear Tests ◽  
Ring Shear ◽  
Ring Shear Tests

Trigger mechanism of loess-mudstone landslides inferred from ring shear tests and numerical simulation

2021 ◽  
Vol 18 (9) ◽  
pp. 2412-2426
Author(s):  
Xin-gang Wang ◽  
Bao-qin Lian ◽  
Liu Kai ◽  
Luo Li
Keyword(s):  
Numerical Simulation ◽  
Shear Tests ◽  
Trigger Mechanism ◽  
Ring Shear ◽  
Ring Shear Tests

scholarly journals Application of large-scale ring shear tests to the analysis of tsunamigenic landslides at the Stromboli volcano, Italy

Landslides ◽  
2009 ◽  
Vol 6 (3) ◽  
pp. 231-240 ◽  
Author(s):  
Daniela Boldini ◽  
Fawu Wang ◽  
Kyoji Sassa ◽  
Paolo Tommasi
Keyword(s):  
Large Scale ◽  
Stromboli Volcano ◽  
Shear Tests ◽  
Ring Shear ◽  
Ring Shear Tests
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