论文部分内容阅读
为探究气泡轻质土在山区公路中的应用,通过对添加粉砂土的气泡轻质土进行室内试验,研究了粉砂土对气泡轻质土强度特性、压缩变形特征、流动性和容重的影响。试验表明:粉砂土掺量较小时,气泡轻质土的抗压强度随掺量的升高呈线性降低;当掺量超过32%时,气泡轻质土孔隙率显著增大,其材料特性从脆性向延性转变;粉砂土掺量越高则气泡轻质土容重越低,但对流动性影响并不显著。最后通过回归分析,提出了对实际工程具有一定参考价值的估算公式。
In order to explore the application of light-weight foam soil in mountainous highway, indoor experiments on light-weight soil with added silt soil were carried out to study the influence of silty sand on the strength, compressive deformation, fluidity and bulk density influences. The results show that the compressive strength of light-weight soils decreases linearly with the increasing of the content of silt, while the porosity of light-weight soils increases significantly when the content of silt is more than 32%. The material properties From brittleness to ductility, the higher the content of silt, the lower the light weight of lightweight soil, but the effect on liquidity is not significant. Finally, through regression analysis, the paper puts forward the estimation formula which has some reference value to the actual project.