露天边坡雷达监测预警技术应用研究

Research on Application of Radar Monitoring and Early Warning Technology for Open-pit Slope

结合乌拉根铅锌矿工程地质条件及采场边坡赋存状况,建立了一套拖车式合成孔径雷达预警系统。通过预警原理研究及预警阈值设定,建立了矿山边坡预警预报体系。通过监测数据处理与分析,雷达系统以声光报警器、短信、邮件的形式,成功发送了2019年12月15日矿山南边坡3号勘探线附近+2284 m-+2269 m区段边坡顺层滑动的黄色预警指令,避免了矿山可能出现的安全事故,证明了以位移速率v=30 mm/d、连续变形体面积s=60 m^(2)为边坡预警阈值的可靠性。最后,基于回溯分析,研究了本次黄色预警触发的原因,为今后的有效预警提供参考。

Combining the engineering geological conditions of the Wulagen lead-zinc mine and the existing condition of stope slope, a trailer-type synthetic aperture radar warning system was designed and established. Through the study of early warning principles and the setting of early warning thresholds, an early warning and forecast system for mine slopes was established. Through processing and analysis of monitoring data, the radar system successfully sent the yellow warning instruction for the bedding slide of the slope in the +2284 m~+2269 m section near the exploration line 3 of the south slope of the mine in December 15, 2019 in the form of sound and light alarms, text messages and emails, which avoided possible safety accidents in the mine. At the same time, it proved the reliability of the slope warning threshold with displacement rate v=30 mm/d and continuous deformation body area s=60 m^(2). Finally, based on the retrospective analysis, the cause of this yellow warning was studied, which provided a basis for scientific and effective warning in the future.