Study on the inhibitory effect of rubber on particle breakage and the impact on the volumetric deformation of calcareous sand under different loading modes

Wang, Yang; Cheng, Yuzhu; Yang, Guoyue; Xie, Yongsheng; Huang, Hang; Liu, Ruixuan

doi:10.1016/j.conbuildmat.2024.135014

Cited by 6 publications

(1 citation statement)

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“…This interest stems from the widespread use of granular materials in various engineering construction projects, such as rockfill dams, railroad embankments, landslides, and driven piles. These structures encounter diverse loading scenarios, ranging from static to dynamic forces, which can lead to complex behaviors and failure mechanisms in the granular materials [1][2][3][4][5][6]. Vallejo (2005, 2006) [7,8] examined the effect of particle crushing on the capacity of driven piles.…”

Section: Introductionmentioning

confidence: 99%

Experimental and ANN Analysis of Shearing Rate Effects on Coarse Sand Crushing

Rabab’ah,

Al Hattamleh,

Tarawneh

et al. 2024

Civ Eng J

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The present study analyzes laboratory experiments on how shearing rate affects the shear strength and crushability of natural coarse sand, employing artificial neural network (ANN) analysis. This study tested three different coarse sands obtained from the crushing of natural rocks: Black Virgin Tuff, weathered Zeolitic Tuff, and calcareous limestone. The behavior of crushed sand specimens with consistent grading, which passed through sieve #4 and were retained on sieve #8, was analyzed using a direct shear box. The specimens were subjected to varied normal loads and shearing speeds to examine their behavior at different relative densities. The test results were analyzed using ANN to investigate the significance of shearing rates on shearing strength parameters, specifically internal mobilized peak friction, the constant volume (residual) internal friction angle, and the consequence of shearing rate on the particle's breakage index. The selected normal (Gaussian) rate significantly affected both the shear strength parameters and breakage. The loading rate increased both shear strength parameters and particle breakage. Therefore, it's highly recommended to maintain secure sets of shear strength values and comprehensive test data for assessing parameters at typical strain rates, prioritizing using slower rates whenever possible. Doi: 10.28991/CEJ-2024-010-03-011 Full Text: PDF

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