Figure 16
The two scatter plots are titled Ultimate Stress dash three-millimetre Spherical Particles and Ultimate Stress dash six-millimetre Spherical Particles, labelled a and b. The horizontal axis is Void Ratio, e, from zero point six four to zero point six nine. The vertical axis is Ultimate Stress in kilopascal from sixty-five to ninety. Each plot includes data for zero point three zero five-metre, zero point six one zero-metre, and zero point nine one five-metre heights, with points labelled zero, one, two, and three. In plot a, a dashed trendline is given by y equals minus two hundred thirty-three point seven two multiply by x plus two hundred thirty-one point three one, with R-squared equals zero point eight zero. In plot b, a dashed trendline is given by y equals minus six hundred ninety-one point two three multiply by x plus five hundred forty-three point six six, with R-squared equals zero point seven nine. Data points range approximately from zero point six four five to zero point six eight five in void ratio and from about sixty-eight to eighty-five kilopascals in ultimate stress.Ultimate stress of 3-mm diameter (a) and 6-mm diameter (b) spherical particle sample versus void ratio. The numbers beside the plot marker indicate the number of sieves that was used during sample preparation