摘要
采用自行研制的大型剪切仪 ,对 2种风化石粒料进行了直接剪切试验研究 ,分析了粒料级配、粗集料含量、最大粒径以及小于 0 .6 mm颗粒含量对风化石抗剪强度参数的影响。结果表明 ,风化石粒料的 φ值受粗集料含量 (R4 .75)的影响较大 ,且 φ存在最大值 ,强度高的粒料其 φ值亦高 ;粒料的 C值则与小于 0 .6
The effects of gradation,coarse size content,the maximum size,and fine(<0.6 mm)content of weathered stone on its shear strength are studied by using self-designed large-scale shear apparatus to conduct the direct shear test of two kinds of weathered stone gravel. It points that the shear coefficient φ of the weathered stone is influenced greatly by coase size content (R_(4.75))and has the maximum value with proper R_(4.75),the gravel of high strength has larger φ value,and the C value of gravel has good correlation with the fine content in size less than 0.6 mm.
出处
《公路》
北大核心
2004年第10期143-147,共5页
Highway
