宁夏地区盐渍土微观结构变化对溶陷的影响研究

不同地区的盐渍土的工程特性存在着较大差异．为揭示宁夏陶灵盐台地缓坡丘陵区盐渍土的力学性能和对煤炭间接液化项目的影响，采用扫描电子显微镜分析研究该地区盐溃土的微结构对溶陷性、无侧限抗压强度特性的相互关系．结果表明盐渍土氯盐和硫酸盐含量大于30％，有的甚至超过了50％，主要以硫酸盐为主；矿物成份主要含石英、石膏、钾长石、钙长石等．

Research on Solubility Caused by Change of Microstructure of Saline Soil in Ningxia Area

There are always big differences in engineering properties of saline soil in different regions. In order to reveal impact on liquefaction of coal project caused by the mechanical performance of saline soil in Taoling region of Ningxia area. The relationship between microstrueture of saline soil and unconfined compressive strength, was investigated by using scanning electron microscope（SEM）. The result shows that content of chlorine salt and sul- fate in saline soil is more than 30% , some even more than 50% ; primary mineral ingredients are quartz, gyp- sum, potassium feldspar, anorthite, etc