化学成分和微结构对冻融土力学性质的影响

THE EFFECT OF CHEMICAL COMPOSITION AND MICROSTRUCTURE ON MECHANICAL PROPERTIES OF FREEZING-AND-THAWING SOIL

冻融作用对土的力学性质改变很大,而这又是源于冻融作用对微结构的影响;本文通过对刘庄矿井冻融土和原状土的化学成分分析,电镜扫描,并结合原状土和冻融土的力学性质,得出力学性质与化学成分和微结构之间的关系。

Freezing and thawing actions greatly change the mechanical properties of soil by influencing its microstructure. This paper investigated the original-state soil and thawing soil in the Liuzhuang mine and obtained the relationship between mechanical properties, chemical composition and microstructure using chemical analysis, scanning electron microscope （SEM） together with the mechanical properties of soil being taken into consideration.