金川矿山地表岩移GPS监测及岩体采动影响规律

GPS MONITORING OF GROUND MOVEMENT AND MECHANISM OF UNDERGROUND MINING INFLUENCE IN JINCHUAN MINE

摘要: 本文通过建立在金川二矿区地表的GPS监测系统,对由于地下采矿引起的地表岩移进行了GPS实时监测,并根据2001～2006年12期监测数据分析了二矿区地表岩体移动变形的特征。在此基础上,阐述了急倾斜金属矿体开采条件下岩体移动的概化传递模式及其地表岩移显现特征,并结合数值模拟和GPS监测结果,分析了采动影响下金川矿山岩体移动发生的机理,同时,探讨了地表岩体移动速率变化特征。

Abstract: According to the established GPS monitoring system in Jinchuan No.2 mine, and the real-time monitoring of the ground movement induced by underground mining, the ground movement and deformation characteristics is analyzed according to the large amounts of monitoring data between 2001 and 2006.Based on this, the general transmission mode and presentation attributes of rock movement induced by mining the rapid incline metal mine is expatiated and the mechanism of ground movement is analyzed combined with the numerical simulation and the GPS monitoring results, meanwhile the developmental characters of ground movement velocity is discussed.