作　　者： ; (李为武）;

机构地区： 华南理工大学土木与交通学院

出　　处： 《辽宁工程技术大学学报（自然科学版）》 2015年第3期405-409,共5页

摘　　要： 为研究边坡在AMD(Acid mine drainage)蚀化作用下动态稳定,从化学传质角度分析蚀化酸化行为,依据硫化矿石氧化机理,建立了蚀化动态酸沉降方程.通过蚀化产酸过程中岩体的酸中和能力ANC的测试,完成抗酸化容量AC的计算,实现边坡蚀化损伤动态评价.结果表明,其中水仓、水坑附近ANC达到-255 kg/t左右,AC几乎为0;靠近敏感矿体部分,抗酸容量较低,坡面ANC为-70^-56 kg/t,抗酸容量为0.012左右,酸沉降行为明显,岩体极易被腐蚀;远离硫化矿石体部分,抗酸容量较大,难于酸化,蚀化不明显. In order to study the slope stability under dynamic process of AMD corrosion, this paper analysed the acidification during erosion from the view point of chemical mass transmission, and established the dynamic equation of acid deposition on the base of the basic chemical reaction of sulfide ores oxidized process. According to acid producing process and capability of ANC testing, this study calculated the antioxidant capacity（AC）, then realized dynamic evaluation of slope erosion damage. The process can explain the dynamic damage of slope rock mass for AMD. The evaluation results show that the acid capacity can be close to 0, ANC can reach-255 kg/t near sensitive ore body part, and AC can only be 0.012, ANC lows to-70～-56 kg/t on the slope,where acid deposition is obvious and rock tends to be eroded. While the further place is hardly to be acidified, nor the corrosion is obvious.

关 键 词： 边坡 硫化矿山 蚀化 酸沉降 酸化模型

领　　域： [建筑科学] [建筑科学]