基于围岩分区破裂的巷道冲击地压演化时空序列研究

项目名称： 基于围岩分区破裂的巷道冲击地压演化时空序列研究

项目编号： No.51204097

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 冶金与矿业学科

项目作者： 潘俊锋

作者单位： 煤炭科学研究总院

项目金额： 25万元

中文摘要： 针对目前对冲击地压事件缺乏过程剖析，造成监测与防治针对性低，冲击地压，尤其是巷道冲击地压灾害频繁发生这一关键问题，开展基于围岩分区破裂的巷道冲击地压演化时空序列研究。揭示冲击危险性巷道围岩分区破坏特征。弄清冲击危险性巷道围岩分区破裂与冲击地压发生的关系。建立巷道冲击地压发生力学模型，探索巷道围岩中可能的冲击地压启动区，以及启动时机。结合冲击地压案例，反演巷道围岩分区破裂突变诱发冲击启动后，剩余动载荷于围岩介质中，在时间坐标上的迁移特征。依据灾害宏观特征，逆推冲击能量载体（高速运动的煤岩体）在空间坐标上的运动轨迹。揭示冲击性能量在时间序列上的标志性特征与能量载体在空间序列上的标志性特征之间的对应关系。研究结果为冲击地压监测与防治的目标、时机确定研究提供理论基础。

中文关键词： 冲击地压演化过程；时间序列；分区破裂；冲击地压事件过程剖析；

英文摘要： According to the key question which rock burst occurred frequently in roadway at present，due to the absence of process anatomy of rock burst event，then the pertinence of monitoring and prevention rock burst are low，to have a study on time and space series of rock burst occurred in roadway based on zonal disintegration of surrounding rock mass.To reveal the characteristics of zonal disintegration of surrounding rock mass in roadway with bursting hazard.To ascertain the relation between occurrence of rock burst and zonal disintegration of surrounding rock mass in roadway with bursting hazard.To establish mechanical model of rock burst，and explore the possible area and time of rock burst stat-up.Combining with the rock burst cases，to inverse the transfering characteristics of remainder dynamic load in time coordinate in surrounding rock mass，after the rock burst start-up which arosed by the instability of zonal disintegration of surrounding rock mass in roadway.Based on macro-characteristics of disaster，to inverse-deduce the trajectory of burst energy vector in space coordinate.To reveal the corresponding relation between the symbolic characteristics of burst energy in time series and the symbolic characteristics of burst energy vector in space series.A theoretical basis will be provided to determine objectives and

英文关键词： evolvement process of rock burst；time series；zonal disintegration；process anatomy of rock burst event；