【摘要】 柴油污染土会导致污染土体的工程性质发生改变，进而影响其上覆建筑物的稳定性。以不同含油量的人工污染土为对象，开展了标准固结实验，结果表明随着柴油污染含量的增加，压缩系数增大，固结系数减小，被柴油污染的土体更容易发生变形，且固结时间会延长；微观结构分析显示柴油污染会使孔隙封堵、颗粒团聚并被油膜包覆；基于实验数据，提出了修正太沙基一维固结理论，构建考虑油水协同作用及饱和度演化的柴油污染土固结模型。模型验证表明，该理论在高污染、高应力工况下对长期沉降预测更为准确，具有良好工程适用性。研究为柴油污染土的治理与污染场地基础设计提供了理论支撑。更多还原

【Abstract】 Diesel-contaminated soil exhibits altered engineering properties that can affect the stability of overlying structures. Standard consolidation tests were conducted on artificially contaminated soils with varying oil contents. Results show that increasing diesel content leads to higher compression coefficients and lower consolidation coefficients. The results demonstrate that diesel-contaminated soil exhibits increased susceptibility to deformation and requires extended consolidation time. Microstructural analysis reveals that diesel contamination causes pore blockage, particle agglomeration, and oil film encapsulation. Based on experimental data, we propose a modified Terzaghi one-dimensional consolidation theory, developing a consolidation model that considers oil-water synergistic effects and saturation evolution. Model validation demonstrates improved accuracy in long-term settlement predictions under high contamination and high-stress conditions, indicating strong engineering applicability. This research provides theoretical support for diesel-contaminated soil remediation and foundation design in polluted sites.更多还原