自然崩落采礦法的顆粒流數值模擬

王連慶; 高謙; 王建國; 方祖烈

doi:10.13374/j.issn1001-053x.2007.06.024

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驗證碼

自然崩落采礦法的顆粒流數值模擬

doi: 10.13374/j.issn1001-053x.2007.06.024

1. 北京科技大學新金屬材料國家重點實驗室, 北京 100083;
2. 北京科技大學土木與環境工程學院, 北京 100083

詳細信息

作者簡介:
王連慶(1967-),男,高級工程師,博士研究生;方祖烈(1935-),男,教授,博士生導師

中圖分類號: TD853.364
計量
- 文章訪問數: 182
- HTML全文瀏覽量: 34
- PDF下載量: 9
- 被引次數: 0
出版歷程
- 收稿日期: 2006-02-12
- 修回日期: 2006-07-08
- 網絡出版日期: 2021-08-16

Numerical simulation of natural caving method based on particle flow code in two dimensions

1. State Key Lab for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;
2. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 以自然崩落采礦法為研究對象,利用二維顆粒流數值模擬(PFC2D)的原理和方法,研究了自然崩落法礦體崩落規律.以某鎳銅礦的地質條件及礦巖物理力學性質為依據,采用數值模擬的方法分析了自然崩落法的崩落規律.結果表明:PFC2D模型在分析自然崩落過程中力學機理的同時,能有效地模擬自然崩落法采礦過程,并且能直觀地給出礦體在崩落過程中各種參數的具體形態變化.利用PFC2D模型預測該鎳銅礦自然崩落法初始崩落拉底半徑為10m,連續崩落的拉底半徑為22m,有效地指導該礦自然崩落法的放礦.
- 礦體 /
- 自然崩落法 /
- 顆粒流 /
- 數值模擬
Abstract: According to the theory and method of particle flow code in two dimensions (PFC2D), the block caving law of natural caving mining method was investigated. Based on the geologic conditions and the physical and mechanical properties of rock in a nickel-copper mine, the caving law in natural caving mining method was simulated by numerical method. The results show that the mechanical mechanism of natural caving method can be analyzed by PFC2D modeling, and the mining process of natural caving method is simulated effectively. The parameter variation of rockbody during the process of mining can be demonstrated easily. The initial caving radius of undercut in the mine is 10 m, and the continuous caving radius of undercut is 22 m. The numerical modeling is effective to guide the mining process of natural caving mining method in the mine.
- orebody /
- natural caving mining method /
- particle flow /
- numerical simulation