人工冻土融沉特性及融土微观结构研究综述

人工冻结法在地铁建设中的大量应用,使得施工后融沉控制成为亟待解决的问题。论述人工冻土融沉特性、融土特性、常温土微观结构和冻融土微观结构的国内外研究现状。基于前人的研究成果,指出有关融土微观结构与融沉关系的研究尚属空白,并提出,融土微观结构与融沉关系的研究和以微观结构特征来表征宏观融沉特性是未来冻融土微观结构的研究方向。

Literature Review on Thawing Settlement Characteristics of Artificial Frozen Soil and Microstructure of Thawed Soil

With the extensive application of artificial freezing method in the subway engineering,controlling settlement has become an urgent problem. Research status at home and abroad of artificial frozen soil thawing settlement characteristics,thawed soil characteristics,microstructure of soil at room temperature,microstructure of freezing and thawed soil were discussed. Based on previous studies,it was pointed out that the study on thawed soil microstructure and thawing relations is still blank,in addition,studying the relationship between thawed soil microstructure and thawing settlement was put forwards for the future research direction. The microstructure should be used to characterize the macroscopic thawing settlement characteristics,in order to seek the microscopic interpretation of thawing settlement mechanism.