| 潘东.基于离散元数值模拟采空区顶板崩落矿岩冲击效应研究[J].矿产勘查,2012,3(5):727-730 |
| 基于离散元数值模拟采空区顶板崩落矿岩冲击效应研究 |
| Study on the impacting effect of roof stopping ore and rock based on discrete element numerical simulation technique |
| 投稿时间：2012-03-23 |
| DOI： |
| 中文关键词: 复杂矿区 顶板崩落 冲击应力 缓冲层 PFC |
| 英文关键词: complex mining area roof caving impact stress buffer layer PFC |
| 基金项目: |
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| 摘要点击次数: 2042 |
| 全文下载次数: 1108 |
| 中文摘要: |
| 文章以露天采区和地下采空区相互错杂的复杂矿区为工程背景,提出崩落采空区顶板充填采空区以提高露天开采环境安全性的工程方法。运用离散元数值分析程序模拟采空区顶板崩落矿岩对悬空底板的冲击作用,试图探寻解决在岩体结构改造工程过程中的技术难题。通过数值模拟分析,文章提出了分层崩落矿岩、大崩落宽度和逐次增加矿岩崩落厚度的顶板崩落工程方法。 |
| 英文摘要: |
| In this paper, the project background is the complex mining area which is mixed with open pit and umderground goaf.By using discrete element analysis program to simulate the impact action of the role caved ore and rock to suspended bottom, the author puts forward a engineering method for the structure reformation of rock mass which caving the gob’s roof to improve the security of open-pit mining environment. to solve the technical problems in the process of rock mass structure reformation project. By the numerical simulation analysis, It is raised the engineering method for the structure reformation which is caving in mine rock stratified, the large width of the caving and increasing the thickness of caving rock successively. |
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