Experiment research of shear behavior of railway ballast influenced by different fouling materials
GAO Liang
XU Yang
YIN Hao
Abstract：Ballast fouling will affect the shear behavior of ballast bed.In order to reveal the influencing regularity of fouling materials on the shear behavior of railway ballast,a large scale direct shear apparatus dedicated for railway ballast was developed,and direct shear tests were conducted to study the effects of different ballast fouling materials and different ballast fouling ratios on average shearing stress,the maximum shearing stress and the maximum shear dilatation displacement of ballast.The results show that both the coal ash fouled ballast and the sand fouled ballast result in poor shear mechanical characteristics of ballast bed.And the effects of coal ash is larger than sand in terms of reducing the shear behavior of ballast bed.
Keywords：ballast bedballast foulingdirect shear testmechanical characteristic
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )