河湖疏浚底泥的固化处置技术研究进展

Research progress on solidification technologies for dredging sediment of river & lake

通过固化处理将河湖疏浚底泥转化为固化土是目前一种有效的资源化利用途径。文章在总结分析国内外疏浚底泥固化技术的基础上,系统地介绍了物化反应、水分转化和骨架构建3种固化过程机理,并对影响固化土力学性质的影响因素进行了讨论分析,主要包括有机质含量、固化材料掺加量、含水量、养护龄期与粘粒含量,同时介绍了目前固化工艺的工程实践,分析了面临的问题,得出了工程经验。通过对研究成果的总结,探讨了河湖疏浚底泥固化工艺的发展趋势。

Through solidification process,the transformation from sediment to the solidified soil was one of the available recycling treatment.The sediment solidification technologies for dredging sediment were summarized and analyzed in this paper,and the three kinds of process mechanism were presented,including physical and chemical reaction model,water transformation model and skeleton construction model.Several important influence parameters for solidification were discussed,which included organic matter content,mixing amount of solidification material,water content,curing age and clay content.Engineering application and experiences of solidification technologies were also introduced and obtained in this paper.Through summarizing the research findings,the development tendency of solidification technologies were discussed in the end.