随着中国城市化进程的不断加快,城市工业场地的重金属污染程度也在加剧。地基土受到重金属污染后,其工程性质会发生改变。固化稳定法是处理重金属污染土地基的常用方法之一。针对该项技术,本文试验研究了铜离子掺量、水泥掺量以及养护龄期对固化污染土的强度特性的影响,并对固化机理进行了分析。试验结果表明:当铜离子掺量低于0.3%时,随着铜离子掺量的增加固化污染土强度变化不大;当铜离子掺量达到0.5%时,土体强度显著下降;但随着水泥掺量及养护龄期的增加,土体强度会有一定程度的提高。 With the accelerating process of urbanization in China, the level of heavy metal pollution in urban industrial sites is also exacerbating. After the foundation soil is contaminated by heavy metals, its engineering properties will change. Curing stabilization method is one of the common methods to deal with heavy metal contaminated soil foundation. In view of this technology, this paper experimentally studied the effects of copper ion content, cement content and curing age on the strength characteristics of solidified contaminated soil. The curing mechanism was also analyzed. The results show that when the copper ion content is less than 0.3%, the intensity of solidified contaminated soil changes little with the increase of copper ion content. When the copper ion content reaches 0.5%, the soil strength decreases obviously. However, Cement content and curing age increases, soil strength will be improved to some extent.