井下泥石流发生机理数值模拟研究  

Numerical Simulation Study on Occurrence Mechanism of Underground Mud-Rock Slides

作　　者：杜建华[1] 匡忠祥[2] 宋卫东[1] 王永清[2] 

机构地区：[1]北京科技大学 [2]武汉钢铁集团矿业有限责任公司

出　　处：《金属矿山》2008年第4期18-22,共5页Metal Mine

基　　金：教育部新世纪优秀人才支持计划项目(编号:NCET-04-0102);国家“十一五”科技支撑计划项目(编号:2006BAB02A02)

摘　　要：针对近年来采用崩落法开采的金属矿山井下泥石流频发,危害程度越来越严重的实际情况,以程潮铁矿井下泥石流发生的过程为工程背景,建立由矿石层、覆盖层、隔水层和泥石流层组成的数值计算模型,采用颗粒流(PFC3D)数值模拟软件对泥石流发生的动态过程进行研究,初步揭示了井下泥石流发生的动态演化过程及作用机理,总结出井下泥石流形成的力学实质和应采取的防治措施。In view of the increasingly more serious hazard due to the frequent underground mud - rock slides in metallic mines where caving mining method is adopted, with the process of underground mud - rock slide in Chengchao Iron Mine ks the engineering background, a numerical calculation model is buih, which composed of ore layer, overlaying layer, water partition layer and mud - rock slide layer. PFC3D numerical simulation software is used in the study of the dynamic process of mud - rock slide. The dynamic evolution process and mechanism of underground mud - rock slide is preliminarily revealed and its mechanical essentials and prevention and control measures that should be taken are summarized.

关 键 词：崩落法开采 井下泥石流 发生机理 数值模拟 

分 类 号：TD611[矿业工程—矿山机电] TE319[石油与天然气工程—油气田开发工程]