Abstract:

Dispersive clay has the very low erosion resistance capacity so as to cause serious threatening to the engineering safety such as the hydraulic engineering and road engineering. It is one of the problematic soils which have been concerned in the geotechnical engineering field. As dispersive clay was found later and engineering cases were less, those studies of dispersive clay are still not deep enough. This paper has analyzed and summarized the current researches from some sides, such as the discovery history and the engineering hazards, the geological condition and the distribution rules, the identification methods, the engineering properties, the dispersive mechanism and the microstructure and the application. Some issues in the researches and the direction of researches are pointed out.

Key words: dispersive clay, geological condition, identification methods, engineering properties, dispersive mechanism, application