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膨胀土的微观研究可分为定性研究和定量研究,膨胀土微观测试技术也可分为定性微观测试技术和定量微观测试技术。在扫描电镜技术基础上,归纳总结了其他微观测试技术,并从中探讨膨胀土微观研究的发展历程和现状,最后总结了目前常用的分析方法,得到了以下结论:(1)虽然目前有着许多的定量测试技术,但是膨胀土微观结构的研究仍大多在定性描述方面;(2)土的微观结构研究程度与所用的观察手段密切相关,正逐步从对土体微观结构进行单独的定性研究向着定性与定量研究相结合的方向前进,未来或许将会出现单独的定量研究;(3)扫描电镜、压汞法和分形理论相结合的方法是研究土体微观结构的有效方法。
The microscopic study of expansive soil can be divided into qualitative research and quantitative research. The microscopic test technology of expansive soil can also be divided into qualitative micro-test technology and quantitative micro-test technology. On the basis of scanning electron microscopy (SEM), other microscopic testing techniques are summarized and discussed. The development history and current status of microscopic studies of expansive soils are discussed. Finally, the commonly used analytical methods are summarized and the following conclusions are obtained: (1) Although there are many Quantitative testing technology, but the study of expansive soil microstructure is still mostly in the qualitative description; (2) The degree of soil microstructure research and observation methods used are closely related to the soil microstructures are gradually carried out qualitative research toward qualitative qualitative And the combination of quantitative research direction, the future may appear a separate quantitative study; (3) SEM, mercury injection method and fractal theory is a combination of methods to study soil microstructure and effective method.