【摘要】 运用新近开发的岩石破坏过程分析RFPA2D (RockFailureProcessAnalysis)系统 ,以含瓦斯煤岩的破坏过程分析为例 ,通过对含瓦斯煤岩突出孕育机制及其声发射的数值模拟 ,说明了数值模拟方法给含瓦斯煤岩突出机制及其预测理论的发展所带来的新契机 .数值模拟再现了含瓦斯煤岩突出的发生、发展过程 ,模拟结果表明 ,复杂的瓦斯煤岩断裂、突出现象可能是一些简单机理的演化结果 .更多还原

【Abstract】 With a newly developed numerical simulation system, Rock Failure Process Analysis (FRPA 2D ), some numerical simulations of coal or rock failure have been done to demonstrate the possibility of using numerical method to explain the outburst mechanism and predict the outburst phenomena. It is shown that the RFPA method is very promising to be used as a tool to study the outburst mechanism of coal or rock containing gas. Numerical simulation reproduces whole process of outburst of coal (rock) containing gas. The simulated result shows complicated fracture and outburst phenomena of coal (rock) containing gas may be the last results of some simple mechanism.更多还原