Zhou Zilong, Zhao Congcong, Huang Yinghua
School of Resources and Safety Engineering, Central South University, Changsha 410083, China.
State Key Laboratory of Safety Technology of Metal Mines, Changsha Institute of Mining Research Co., Ltd., Changsha 410012, China.
Sensors (Basel). 2022 Jun 24;22(13):4775. doi: 10.3390/s22134775.
The layout of microseismic monitoring (MSM) station networks is very important to ensure the effectiveness of source location inversion; however, it is difficult to meet the complexity and mobility requirements of the technology in this new era. This paper proposes a network optimization method based on the geometric parameters of the proposed sensor-point database. First, according to the monitoring requirements and mine-working conditions, the overall proposed point database and model are built. Second, through the developed model, the proposed coverage area, envelope volume, effective coverage radius, and minimum energy level induction value are comprehensively calculated, and the evaluation reference index is constructed. Third, the effective maximum envelope volume is determined by taking the analyzed limit of monitoring induction energy level as the limit. Finally, the optimal design method is identified and applied to provide a sensor station layout network with the maximum energy efficiency. The method, defined as the S-V-E-R-V model, is verified by a comparison with the existing layout scheme and numerical simulation. The results show that the optimization method has strong practicability and efficiency, compared with the mine's layout following the current method. Simulation experiments show that the optimization effect of this method meets the mine's engineering requirements for the variability, intelligence, and high efficiency of the microseismic monitoring station network layout, and satisfies the needs of event identification and location dependent on the station network.
微地震监测（MSM）站网布局对于确保震源定位反演的有效性非常重要；然而，在这个新时代，很难满足该技术的复杂性和移动性要求。本文提出了一种基于所提出的传感器点数据库几何参数的网络优化方法。首先，根据监测要求和矿山工作条件，构建整体的提议点数据库和模型。其次，通过所开发的模型，综合计算提议的覆盖区域、包络体积、有效覆盖半径和最小能量水平感应值，并构建评估参考指标。第三，以监测感应能量水平的分析极限为限，确定有效最大包络体积。最后，确定并应用最优设计方法，以提供具有最大能量效率的传感器站布局网络。该方法定义为S-V-E-R-V模型，通过与现有布局方案和数值模拟进行比较来验证。结果表明，与按照当前方法进行矿山布局相比，该优化方法具有很强的实用性和效率。模拟实验表明，该方法的优化效果满足矿山对微地震监测站网布局的可变性、智能化和高效性的工程要求，并满足依赖于站网的事件识别和定位需求。
