上分层充填开采地表移动变形规律数值模拟研究
闫宏宇，王灵
（华北科技学院，河北 廊坊 065201）
摘要： 充填开采技术是解决“三下”（建筑物下、铁路下、水体下）压煤开采问题的主要技术途径之一。为了探索
上分层充填开采地表移动变形规律，以郭家滩煤矿2^-2煤层为例，采用FLAC^3D软件，构建数值模拟模型，对2^-2煤层充填
开采地表移动变形规律进行模拟分析。研究发现，相比于垮落法而言，充填开采各地表移动变形量均相对较小，从而大
大减弱了对地表建筑物等的影响，能够有效保证地表建筑物的安全。
关键词： 充填开采；地表移动变形；数值模拟；变形规律
中图分类号： TD325      文献标志码： A      文章编号： 2095-0802-(2023)06-0041-05
Numerical Simulation of Surface Movement and Deformation in Upper Stratified
Filling Mining
YAN Hongyu, WANG Ling
(North China Institute of Science and Technology, Langfang 065201, Hebei, China)
Abstract: Filling mining technology is one of the main technical ways to solve the "under three" (under buildings, under railway,
under water) coal mining problems. In order to explore the law of surface movement and deformation in upper stratified filling
mining, FLAC^3D software was used to build a numerical simulation model by taking 2-2 coal seam in Guojiatan Coal Mine as an
example to simulate and analyze the law of surface movement and deformation in 2-2 coal seam filling mining. It is found that
compared with caving method, the surface movement and deformation value of filling mining is relatively small, which greatly
weakens the influence on surface buildings and can effectively ensure the safety of surface buildings.

Key words: filling mining; surface movement and deformation; numerical simulation; deformation law