【摘要】 在地下矿山开采过程中,巷道围岩结构变化具有显著的非线性特征,易引发较大的煤岩动力灾害。现有深部地下巷道围岩监测技术基于单一物理量的数据采集,缺乏多物理量的联合监测与分析,无法准确判断围岩结构变形状态。针对上述问题,基于对钻屑法、岩饼法、应力测量法、围岩变形监测法、电磁辐射法、声发射法、微震监测法、震动层析成像法等现有深部地下巷道围岩监测技术的分析,提出了采用深部地下巷道围岩结构监测信息化技术构建多源、多场的深部地下巷道围岩结构监测体系的设想,从数据感知、采集、传输、分析等方面阐述了深部地下巷道围岩结构监测信息化关键技术,并讨论了深部地下巷道围岩结构监测信息化面临的受限环境下传感节点供能、异构传感设备统一交互、时延敏感网络数据传输等挑战。更多还原

【Abstract】 In underground mining process,variety of roadway surrounding rock structure has obvious non-linearity characteristic,and larger coal-rock dynamic disasters are triggered easily. Existing monitoring technologies for roadway surrounding rock in deep underground are based on data collection of single physical quantity and lack joint monitoring and analysis of multi physical quantities,which are unable to correctly judge deformation state of surrounding rock structure.For above problems,existing monitoring technologies for roadway surrounding rock in deep underground were analyzed including drilling cuttings method,core disking method,stress measuring method,surrounding rock deformation monitoring method,electromagnetic radiation method,acoustic emission method,microseism monitoring method,seism tomography method,etc.A formulation of multi-source and multi-field monitoring system for roadway surrounding rock structure in deep underground was proposed,which was built by use of informatization technology for roadway surrounding rock structure monitoring in deep underground.Key technologies of the informatization technology were expounded form aspects of data perception,collection,transmission and analysis.What’s more,some challenges of the informatization technology were discussed including energy supply of sensor nodes in limited environment,unified interaction of heterogeneous sensor and data transmission of time-delay sensitive network.更多还原