以钱营孜矿区的3212工作面为研究对象,采用基于Knothe时间函数的动态沉陷预计模型进行开采沉陷动态预计。计算了不同时间、不同位置的点的动态下沉值,分别与水准测量成果和D-InSAR监测结果进行了对比分析。实验表明,基于Knothe时间函数的动态沉陷预计模型所得到的结果符合开采沉陷导致的地表沉陷规律;其结果与水准测量成果和D-InSAR监测结果吻合;最大误差不超过0.2m,能够满足动态预计的要求。
Taking No.3212 coal mining face in Qianyingzi Mining Area as a study object,a dynamic subsidence prediction model base on the Knothe time function was applied to the dynamic prediction of the mining subsidence.The dynamic subsidence values at different time and different locations were calculated and a comparison analysis was conducted with the achievements of the level measurements and the D-InSAR monitoring and measuring results.The experiment showed that base on the Knothe time function,the results obtained from the dynamic subsidence prediction model could meet the surface ground subsidence law caused by the mining subsidence and the results could meet the achievements of the level measurements and the D-InSAR monitoring and measuring results with a max error not over 0.2m and could meet the requirements of the dynamic prediction.