STUDY ON TIME FUNCTION OF SURFACE SUBSIDENCE-- THE IMPROVED KNOTHE TIME FUNCTION
关于地表点下沉时间函数的研究--改进的克诺特时间函数

The Knothe time function was known to be able to describe the whole process of surface subsidence. Through theory proof and comparison with actual measurement data,the fault of Knothe differential equation is discovered in describing the whole process of surface subsidence. By means of analyzing the whole process of surface subsidence,a more objective and reasonable expression for time function of surface subsidence is derived and presented,which has been verified with actual measurement data of Dongpang mine.