深凹露天矿复环流决定参数准则方程式的建立  

Establishment of criterion equation for decision parameter of recombination circulation in deep sunken open-pit mine

作　　者：王远 杜翠凤[1,2] 靳文波[1,2] 王浦语 宋富美 WANG Yuan;DU Cuifeng;JIN Wenbo;WANG Puyu;SONG Fumei(School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China;Key Laboratory of Ministry of Educa- tion for Efficient Mining and Safety of Metal Mine, Beijing 100083, China;Safety Engineering College, North China Institute of Science and Technology, Langfang 065201,China)

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]金属矿山高效开采与安全教育部重点实验室,北京100083 [3]华北科技学院安全工程学院,河北廊坊065201

出　　处：《煤炭学报》2018年第5期1365-1372,共8页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(51274023);中央高校基本科研业务费专项资金资助项目(FRF-BD-17-007A)

摘　　要：为研究深凹露天矿内复环流式通风方式的影响因素及不同风速下露天矿内复环流结构,通过相似实验和数值模拟对露天矿复环流式通风进行定性分析,运用量纲分析和多元非线性回归分析得到深凹露天矿复环流决定参数的准则方程式,基于灰色关联分析验证决定参数(K)的准确性。结果表明:露天矿的边坡角度、深度、长轴长度等几何参数是露天矿内部复环流产生的主要影响因素;当露天矿复环流式通风的决定参数K在2.9~7.0时,露天矿内均会产生复环流式通风;相对于传统决定参数A,决定参数K加入边坡角度这一因素,更能准确的表征露天矿复环流通风方式。In order to study the influencing factors of the recombination circulation ventilation,the structure of recombination circulation under different wind speeds in the deep sunken open-pit mines,this paper qualitatively analyzed the recombination circulation ventilation through similar experiment and numerical simulation.Using the methods of dimension analysis and multivariate nonlinear regression analysis,the criterion equation for the decision parameter（ K） of recombination circulation was obtained.The accuracy of the decision parameter was verified by grey correlation analysis.The results indicate three points：（1） The geometrical parameters such as the slope angle,depth and long axis of the open-pit mines are the main factors influencing the existence of the recombination circulation in the open-pit mines;（2） When the decision parameter of the recombination circulation ventilation ranges from 2.9 to 7. 0,the recombination circulation ventilation will all be produced in the open-pit mines;（3） Compared with the traditional decision parameter,it is more accurate for the decision parameter K with the slope angle to represent the recombination circulation ventilation.The result in this paper could further improve the ventilation theory of open-pit mines.

关 键 词：深凹露天矿 复环流 灰色关联度 量纲分析 正交试验 

分 类 号：TD724[矿业工程—矿井通风与安全]