马来西亚东海岸铁路沿线泥炭土物理指标相关性研究

Study on Correlation of Physical Indicators of Peat Soil along Malaysian East Coast Railway Link

马来西亚东海岸铁路项目沿线广泛分布泥炭土,其有机质含量高,离散性显著。采用土工试验方法,测定铁路沿线泥炭土的有机质含量、pH值、天然含水率、密度、比重、液塑限等物理指标,并分析不同物理指标之间的相关性。结果表明:沿线泥炭土具有高含水率、高液限、高有机质含量及低密度、低比重的特点;有机质含量与天然含水率、孔隙比、密度等物理指标具有较好相关性,相关系数达0.900以上;含水率与孔隙比、密度、液限等指标具有一定的相关性。

There widely spreads peat soil along Malaysia East Coast Railway Link(ECRL).It has high content of organic matter and significant discrete nature.Herein geotechnical test method was used to measure the physical indicators of the peat soil,such as content of organic matter,pH,natural water content,density,specific gravity and liquid-plastic limit,and then the correlations of the indicators were analyzed.The results show that,the peat soil along the railway is characterized by high water content,high liquid limit,high content of organic matter,low density and low specific gravity;the content of organic matter has good correlation with the natural water content,the pore ratio and the density,with the correlation coefficient exceeding 0.900.The water content has certain correlation with the pore ratio,the density and the liquid limit.