摘要
本文通过对碎石土级配曲线的线型分析及拟合,确定了表征碎石土细粒含量大小的粒径系数k及级配好坏的级配系数n,并在大型直剪及大型三轴剪切试验的基础上,通过多元回归分析,使粒径大小、级配好坏及密实程度等因素对碎石土抗剪强度的影响定量化,解释了影响碎石土强度的内在本质规律,从而为碎石土抗剪强度的确定提供了一种快速、准确的评价方法。
By the pattern analysis and fitting of the grading curve of gravel soils, the grain size coefficient k characterizing the fine grain contents and the gradation coefficient n characterizing the size distribution quality can be determined. On the basis of large scale direct shear and large scale triaxial shear testings, by the multi-element regression analysis, the effect of the various factors such as: grain size. quality of gradation and the degree of denseness etc. upon the shearing strength of gravel soils are quantitatively assessed. It explains the inherent intrinstie law affecting the strength of grave1 soils. This provides a speedy and accurate method of assessment to determine the shearing strength of gravel soils.
出处
《勘察科学技术》
1992年第4期21-24,共4页
Site Investigation Science and Technology
