Silt is of special soil having different characteristics from general soil. The difficulties in processing are high moisture content and organic matter. Silt solidification process involves geotechnical engineering,environment engineering, soil science, materials chemistry and other related disciplines. The study progress at home and abroad with respect to solidifying materials, solidifying mechanism and performance of solidified soil is summarized and the questions thereof need to be solved are put forward as follows: silt solidification process must be linked with soil science; basic research of solidifying materials; quantitative research on organic matter content, solidifying materials and performance of solidified soil; study on durability of solidified soil; further study on construction technology and equipments.%淤泥属特殊土，具有不同于一般土的特性，其处理难点是高含水率和有机质。淤泥固化处理涉及到岩土工程、环境工程、土壤学、材料化学等相关学科。从固化材料、固化机理、固化土性能方面总结了国内外研究进展后，提出淤泥固化需要解决的问题：淤泥固化处理须与土壤学联系起来；固化材料的基础研究；有机质含量与固化材料、固化土性能的定量研究；固化土耐久性研究；施工工艺、设备等方面的进一步研究。
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