基于S-SAR边坡雷达的超高海拔露天矿山边坡监测技术研究

Research on slope monitoring technology of ultra-high altitude open-pit mine based on S-SAR slope radar

为研究超高海拔露天矿山边坡雷达监测技术,本文以西藏巨龙铜矿露天采场西山高陡边坡划定的重点监测区域为研究对象,分析合成孔径边坡雷达(S-SAR)监测数据。结果表明:超高海拔露天矿边坡雷达监测数据特征主要受天气气候因素的影响。其中,高海拔露天矿边坡冻融循环是影响边坡稳定性及雷达监测的重要因素,冻结导致土体膨胀,增加内部压力,而融化使土体强度减弱,融水渗透加剧。因此,通过研究超高海拔边坡雷达监测数据特征,提早发现边坡的变形情况,了解边坡的变形规律,能有效提升矿山边坡的整体安全性。

To study the radar monitoring technology of ultra-high altitude open-pit mine slope,the key monitoring area delineated by the high and steep slope of Xishan in the open-pit stope of Julong copper mine in Tibet was taken as the research object,and the synthetic aperture slope radar(S-SAR)monitoring data was analyzed.The results show that the radar monitoring data of ultra-high altitude open-pit mine slope is affected by many aspects,including topography,weather and climate,geological structure lithology,human interference and data processing technology.In addition,it is also found that the freezing period and thawing period of high-altitude open-pit mines are important factors affecting the stability of the slope,and the freezing causes the soil to expand and increase the internal pressure,while the thawing weakens the soil strength and aggravates the infiltration of frozen water.Therefore,by studying the slope displacement monitored by the slope radar in real time,the deforma-tion of the slope can be quickly discovered,and the deformation law of the slope can be effectively understood,so as to effectively improve the overall s afety of the mine.