地下开采引起的岩层和地表移动对周围环境造成了严重的破坏,地裂缝、房屋破坏、塌陷坑等,了解岩层和地表移动规律对于保护环境和控制房屋损害有着重要的意义。以某岩层移动监测站的实测数据为原型,对其监测数据进行了分析研究,利用MATLAB软件进行了GM(1,1)模型的建立和预测。研究结果表明,就岩层内部观测站而言,工作面正上方的监测点,由于其下沉单调递增规律,模型预计结果较好,相对误差小于10%;对于工作面外侧的监测点,由于其具有下沉、上升变化的波动性特征,不能进行GM(1,1)模型拟合预测。
Strata movement and ground subsidence caused by mining destroyed the surrounding environment a lot, like ground fissures, building damages, collapse crater and so on, so it is of great importance to understand the laws of stra- ta movement and ground subsidence for protecting environment and controlling building damages. The practical data from a monitoring station are studied and analyzed as the prototype. Then a GM ( 1,1 ) model is established with MATLAB soft- ware. The result showed that for the monitoring points in the strata, the ones which are above of the working face is fit for GM( 1,1 ) well because their subsidence is increasing with the relative error of less than 10% ; the ones which are outside of the working face can not fit the GM ( 1,1 ) simulation due to their great volatility.