【摘要】 对淮南市部的二个垃圾堆集场的研究结果表明，经过８到１０年的垃圾污染作用，堆集场地基粘土的矿物成分和化学成分均发生了改变。变化程度与深度相关。例如：地其粘工中原来蒙脱石含量很高，但由于人渗水的作用使蒙脱石伊利石化以至其含量明显下降。此类水化学反应和矿物变化进一步引起了地基粘土的水理性质改变。更多还原

【Abstract】 In the basal clay of two waste deposits in the suburbs of Huainan mineralogical and chemical changes depending on depth took place in the upper half of the clay during 8 to 10 years of operation: caused by leachate percolation the formerly high montmorillonit content has decreased by illitisation. These hydrochemical and mineralogical reactions aroused significant changing of the hydro-physical properties of the basal clay.更多还原