厚松散层下地表移动参数预计模型研究

Prediction Model of Surface Movement Parameters under Thick Loose Layer

在已有的实测数据基础上,对华北、华中、华东等厚松散层矿区数据整合统计,研究了松散层矿区不同松散层厚度下的地表移动变形预计参数相应的特殊规律,并总结出厚松散层条件下,下沉系数、水平移动系数、主要影响角正切、拐点偏移距和开采传播影响角的预计模型,实例验证表明预计模型具有较高的拟合度。

Based on the existing measured data,this paper studies the data of the corresponding parameters of the surface movement and deformation under different thickness of the loose layer in the loose layer mining area,and sums up the thickness of the loose layer in the North China,Central China and East China.Under the condition of loose layer,the subsidence coefficient and the horizontal motion coefficient mainly affect the expected model of angle tangent,inflection point offset and mining propagation influence.The example shows that the expected model has high fitting degree.