地表动态下沉预计模型的建立研究

Study on Establishment of Dynamic Prediction Model for Surface Subsidence

为研究井下煤层开采引起的地表移动变形规律,建立地表动态下沉预计模型,本文从地表单点下沉的动态规律入手,分析了Knothe时间函数模型在描述地表动态下沉中的不适应性,通过对其改进并验证了改进后的函数模型对地表单点下沉规律描述的客观性。

In order to study the law of surface movement and deformation caused by down-hole coal seam mining, the dynamic prediction model of surface subsidence is established. Based on the dynamic law of surface single point sinking, this paper analyzes the incompatibility of Knothe time function model in describing surface dynamics, by improving and validating the objectivity of the improved function model to the surface single point sinking rule.