国内某排土场岩石块度分布规律研究

Research on the Distribution of Rock Lumpiness from a Waste Dump in Domestic

以国内某排土场堆积散体为研究对象,采用筛分法、块度直接量测法和摄影-图像分析法相结合的测量方法对该排土场岩石块度分布规律进行了测量,通过测量结果的统计和分析,揭示排土场散体物料块度组成呈现出比较明显的粒级分级特征。结合试验结果,采用R-R分布函数表达式表示排土场的岩石粒度组成,通过与现场实测粒度组成进行对比,拟合的相关程度相差不大,符合现场实际,分析所得的排土场岩石块度分布规律可为矿山排土场稳定性研究工作提供依据。

Taking the bulk material of a waste dump in do- mestic as a research example, the distribution of rock lumpi- ness from the waste dump was tested by the combination of sieving method, direct measurement method and photogra- phy-image analysis method, Through the analysis and statis- tics of test results,it revealed that the distribution of rock lumpiness presented the obvious size classification. Based on the test results, particle-size composition of rock in waste dump, expressed by R--R distribution function, had little difference on the fitting relevance comparing with the field measuremen（s, which was consistent with the actual condi- tions. The obtained distribution laws of rock lumpiness could provide a basis for stability research of mine waste dump.