基于FLAC~(3D)的煤矿开采沉陷预计及与概率积分法的对比分析

经典概率积分法作为常用沉陷预计方法自有其优越性,但其不能表现地层内部的岩体的移动变形情况,且关键参数必须由实地观测方可确定,这给开采沉陷预计工作造成了一定的难度。文章通过对数值模拟法进行研究,同时与概率积分法进行对比,得出两者处理开采沉陷预计工作中的优劣。研究表明:无需确定复杂参数的数值模拟法不仅能有效的表现地表的移动变形情况,更能表现岩体内部的移动变形情况。

The coal mining subsidence prediction Based on FLAC3D and comparative analysis with probability integration method

The coal mine is an important one-time energy. It is significant for research destruction movement and deformation caused by the coal mining, classical probability integration method as commonly used in subsidence prediction has its own superiority, but it can’t show the movement and deformation within the strata, and the key parameters only be confirmed by actually measuring it, it caused some difficulty to the prediction of mining subsidence. The study shows that the numerical simulation of no need to determine the complex parameters not only can display the movement and deformation of the surface, but also can shows about the interior the rock stratum.