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金属矿山 ›› 2016, Vol. 45 ›› Issue (04): 58-61.

• 采矿工程 • 上一篇    下一篇

岩体结构面几何参数分布规律研究

代碧波1,2,3,荆永滨4   

  1. 1.金属矿山安全与健康国家重点实验室,安徽 马鞍山,243004;2.华唯金属矿产资源高效循环利用国家工程研究中心,安徽 马鞍山,243004;3.中钢集团马鞍山矿山研究院有限公司,安徽 马鞍山,243004;4.河南工程学院安全工程学院,河南 郑州,451191
  • 出版日期:2016-04-15 发布日期:2016-08-16
  • 基金资助:

    基金项目 “十二五”国家科技支撑计划项目(编号:2011BAB07B01)。

Research on Distribution of Geometric Parameters of Structural Plane

Dai Bibo1,2,3,Jing Yongbin4   

  1. 1.State Key Laboratory of Safety and Health for Metal Mines,Maanshan 243004,China; 2.Huawei National Engineering Techincal Research Center of High Efficient Recylic Utilizaiton for Metal Minerals Co.,Ltd,Maanshan 243004,China;3.SINO Steel Maanshan Institute of Mining Research Co.,Ltd,Maanshan 243004,China;4.School of Safety Engineering,Henan Institute of Engineering,Zhengzhou 451191,China
  • Online:2016-04-15 Published:2016-08-16

摘要: 为研究岩体结构面的分布规律以指导矿体可崩性分级和崩落块度预测,采用极点坐标变换及动态计数圆计数的极点密度统计新方法绘制节理等密图,确定优势节理组及其产状范围。通过分位数-分位数图检验确定节理面几何参数的分布形式,然后用最大似然方法计算对应于这种分布形式的概率分布函数的参数,进一步确定节理面几何参数的分布规律。对金川Ⅲ矿区结构面几何参数进行统计分析,确定Ⅲ矿区节理间距服从指数分布,均值0.2 m,Ⅲ矿区存在4组优势节理组,均服从正态分布。

关键词: 自然崩落法, 节理面, 节理等密图, 分布规律

Abstract: To study the distribution of structural plane within rock mass and implement cavability classification and block prediction of ore body,a new method to draw joint iso-intensity diagram with polar coordinate transformation and dynamic counting circle was utilized to identify the main joint groups and the range of occurrence.Quantile-Quantile diagram was used to determine the distribution of geometric parameters of joint surfaces.Then,maximum likelihood method was utilized to calculate the parameters of probability distribution function.The parameters of structural planes in JinChuan Mine Ⅲ were analyzed.Joint distances of Mine Ⅲ obey index distribution and its mean is 0.2 m.There are 4 main joint group in Mine Ⅲ and all obey normal distribution.

Key words: Block caving, Joint surface, Joint iso-intensity diagram, Distribution