采矿数值模拟研究中采动岩体力学参数确定研究
首发时间:2006-05-18
摘要:基于“下三带”理论和采场端部岩体破坏区理论,采用UDEC数值模拟计算,对岩层移动模拟研究中如何确定模型下边界范围进行了研究。研究结果表明,模型下边界位置应取在底板导水破坏带以下或采场底板最大破坏深度以下,若取在离底板较近处,将导致老顶上方应力集中程度偏高、底板垂直应力总体偏大、采空区底板不规则运动和实体煤层底板垂直位移值偏小。
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Study on determining mechanical parameter of rock mass used in the numerical simulation of mining process
Abstract:Based on the observation date in spot and in the laboratory ,it given an effective method of determining the mechanical parameters of rock mass used in numerical simulation combined with foregone experience formula, Reasonable mechanical parameters of rock mass for numerical simulation can be obtained by this method and relatively preferable results can be reached consequently.
Keywords: mined rock mass numerical simulation mechanical parameters
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No.6681602501147923****
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