榕江三角洲公路路基软土物理力学指标统计分析

Statistical Analysis on Physical and Mechanical Parameters of Highway Subgrade Soft Soil in Rongjiang River Delta

文中对榕江三角洲全新统滨海沉积相的公路路基软土物理力学指标进行了描述性统计、相关性分析并建立了回归方程。结果表明:研究区软土具有天然含水量高、孔隙比大、压缩性大、抗剪强度低等特点。研究区软土物理力学指标中,相关性最强的为天然含水量与孔隙比,二者的拟合线性回归方程与沿海地区的回归方程相似,具有一定可靠性和实用性。

Descriptive statistical analysis and correlation analysis have been conducted on the physical and mechanical indexes of the soft soil of highway subgrade in Rongjiang River Delta. The soft soil shows characteristics of high natural water content, large porosity, large compressibility, and low shear strength. The natural water content of the soft soil was strongly positive correlated with the pore ratio in the study area, and the fitting linear regression equation of these two parameters in study area shows reliability and practicability, as it is similar to the soft soil regression equation in coastal area.