【摘要】 从地形地貌、地层格架、岩相展布、地质构造等方面，阐述成都市长安垃圾填埋场的地质特征。结合室内和野外现场试验，详细分析填埋场区的包气带、含水层、相对隔水层的厚度、透水性等水文地质条件，指出被透水性差的蓬莱镇组中段地层所围限的三面环山、中间沟谷的地质环境，能够有效地阻滞垃圾渗滤液对地下水的污染。更多还原

【Abstract】 The geological characteristics of Chang’an MSW landfill site, Chengdu city,such as landform,geomorphology,stratigraphy and structure are discribed in detail in this paper. On the basis of laboratory and in situ tests,we analyse the depth and perviousness of vadose zone as well as aquifer and aquifuge and, furthermore,point out Penglaizhen formation with poor permeability can effectively prevent pollution of ground water from the leachate of refuse.更多还原