地下采煤地表沉陷规律数值模拟研究
Numerical Simulation Study on the Laws of Surface Subsidence in Underground Mining
韩东赟 1谭荣建1
作者信息
- 1. 昆明理工大学国土资源工程学院,云南昆明650093
- 折叠
摘要
为了研究煤层开采对地表的影响及变形规律,以柳树沟煤矿一采区的113001工作面为研究背景,利用FLAC30数值模拟软件建立模型,选取合适的参数,对该工作面的开采沉陷进行模拟,生成地表下沉曲线、水平移动曲线,通过对下沉曲线和水平移动曲线的对比分析,得出柳树沟煤矿一采区113001工作面开采地袁移动变形规律.总体来说,由于煤层埋藏较深,开采厚度不大,其直接顶板岩层冒落岩块体积膨胀,所以不会造成该工作面采煤完成后出现大规模的地表沉降.
Abstract
To study the effects and deformation regularity of coal seam mining on surface, taking 113001 working face of the first district in Liushugou mine as research background, using numerical simulation software FLAC3D to establish model, selecting appropriate parameters, the mining subsidence of the working surface was simulated, surface sinking curve and horizontal displacement curve were generated.Through the contrast analysis between the curves, basic laws of the surface deformation caused by coal mining were obtained.In general, due to deep buried coal sean and small mining thickness, the volume of roof caving rock mass increased large scale surface subsidence caused by coal mining could not occur.
关键词
开采沉陷/FLAC3D/地表变形/数值模拟Key words
Mining subsidence/FLAC3D/Ground deformation/Numerical simulation引用本文复制引用
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据