粗粒料抗剪强度和颗粒破碎大型三轴试验研究

试验材料采用原料场颗粒级配进行缩尺制备，通过大型三轴试验对同一种试样在饱和与干燥的试验条件下进行对比分析，得到干燥试样的内摩擦角大于饱和试样的内摩擦角；且试样的φ0（当围压与大气压比值为1时的妒值）也存在相同的变化规律；干燥试样的颗粒破碎率小于饱和试样的颗粒破碎率；表明对于同一种试样，不同的试验条件对颗粒破碎有一定的影响。

Investigation on Shearing Strength and Particle Breakage of Coarse Materials Based on Large-Scale triaxial Tests

Field test adopting the particle size distribution of raw materials for preparation of a reduced scale, a comparison of large-scale triaxial testing and analysis were made for the materials under the dry and saturation conditions. The result show that the friction angle under dry condition is larger than that of saturation condition;and the varieties of the strength index ~o0 also follows this pattern;the breaking rate of the soil kernel under the dry condition is larger than that of saturation condition; the breakage of the soil kernel of the same material sample is affected by different testing conditions.