地下矿山实时信号的微震震源分析

发布时间：2018-04-30 20:14

本文选题：实时在线 + 微震监测　；参考：《武汉科技大学》2013年硕士论文

【摘要】：为了保证武钢集团金山店铁矿采矿生产的顺利进行，有效避免采矿过程中大面积垮冒所带来的微震事件的发生，，武汉科技大学针对武钢矿业公司金山店铁矿地下开采区域进行实时在线微震监测。对金山店张福山铁矿采动微震事件进行监控，是预防事件发生的有效途径之一。在金山店张福山铁矿设计并布置了一套相适应的微震监测定位系统，采集微震信号，经过EMD滤波、降噪等技术处理，得出非正常的微震波形，最后利用收敛速度快的牛顿迭代法，通过十六个传感器的空间坐标反算出震动源的空间坐标，确定震动源位置，并在Hilbert变换的基础上进行初步的震源分类，为矿区采场提供依据，有助于预测灾害类型，并进一步采取措施进行有针对性的预防和控制，减少微震事件的发生。基于现场采集到的金山店铁矿地质资料和实验室分析的结果，决定将传感器位置设置在张福山矿区-340m位置上，测取微震动波形，进行震源分析，预防安全事故的发生。综合微震数据分析结合矿区实际情况进行了微震事件震源分析研究以及对矿区影响程度给出科学评价，并对矿山下一步采矿生产作出合理的建议，在安全的前提条件下，最大限度地回收宝贵的矿石资源。这项研究对确保该矿采矿生产的安全、对指导下一步的生产工作、对矿山生产的决策等具有非常重要的意义。
[Abstract]:In order to ensure the smooth operation of the mining production of Jinshan iron mine in Wuhan Iron and Steel Group, and effectively avoid the occurrence of microseismic events caused by large area collapse during the mining process, the real time on-line microseismic monitoring was carried out in the underground mining area of the Jinshan store iron mine in the mineral company of Wuhan Iron and Steel Group (mineral company). Monitoring is one of the effective ways to prevent the occurrence of events. A set of adaptive microseismic monitoring and positioning system was designed and arranged in jinjindian Zhang Fushan iron mine. The microseismic signal was collected by EMD filtering and noise reduction. The abnormal microseismic waveform was obtained. Finally, the Newton iteration method with fast convergence speed was used to pass sixteen sensors. The space coordinates of the vibration source are calculated and the location of the source of the vibration source is calculated. The preliminary classification of the source of the seismic source is carried out on the basis of the Hilbert transformation, which can provide the basis for the mining area, and help to predict the type of the disaster, and further take measures to carry out the targeted prevention and control and reduce the occurrence of the microseismic events. Based on the field collection, The results of geological data and laboratory analysis of jinjindian iron mine decide to set the sensor position on the -340m position in the Zhang Fushan mining area, measure the waveform of the micro vibration, analyze the source and prevent the occurrence of safety accidents. The degree gives a scientific evaluation, and makes reasonable suggestions for the mining production in the next step. Under the condition of safety, the valuable ore resources can be recovered to the maximum. This study is of great significance to ensure the safety of the mining production in this mine, to guide the production work of the next step and to the decision of the mine production.

【学位授予单位】：武汉科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD76

【参考文献】