岩层与地表移动的参数识别

PARAMETER IDENTIFICATION OF MINING SUBSIDENCE

本文基于现代控制理论和系统论的方法,提出了岩层与地表移动的参数识别理论,并以有限单元的线弹性模型为基础,根据实测的地表移动变形值,利用编制的岩层与地表移动的参数识剐有限元程序,解决了岩层与地表移动的参数识别问题。通过实例演算,得到当不给定参数约束时,其解是不唯一的;只有给定参数以一定的约束条件,方可辨识出唯一的岩体力学参数。

Based on the modern control theory and system theory, the theory of parameter identification of mining subsidence is introduced in this paper. Using the data of deformation on surface from field surveying and the finite element program of parameter identification we developed, the problem of parameter identification is solved. Through the calculation of actual examples, we know that we can identify the sole mechanical parameters of rock mass when the boundary conditions of the parameters are given