Evaluation of reduced-scale railway ballast particle size effects for different test sample sizes using monotonic triaxial tests
A Namwong,
P Jitsangiam,
T Tanchaisawat
Abstract:This study rigorously investigated the mechanical characteristics of railway ballast using largescale triaxial (LST) testing, focusing on shear strength, stress–strain relationships, and volumetric alterations by altering particle sizes under controlled conditions. Samples with a size ratio (D/dmax) of 4.7 are typically used in LST testing. However, the ballast used in Thailand typically features a maximum grain size of 70.00 mm, whereas LST testing requires samples with diameter exceeding 300 mm, which poses … Show more
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