辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(6)：574-580,7.DOI:10.11956/j.issn.1008-0562.2017.06.003
注水钻孔周围煤体径向位移数值模拟
Numerical simulation on radial displacement around coal seam water injection drilling
摘要
Abstract
In order to reveal the development and diStribution law of coal body displacement during coal seam water flooding,this paper establish a simulation model coupled of solid mechanics-material,transmission and diffusion in porous,Darcy law by using software of COMSOL Multiphysics 4.3b2D,and studied the radial displacement around coal seam water injection drilling under different pressure and time of water injection.The results show that the radial displacement of coal body increases as the pressure and time of water injection increase;there are two larger displacement ellipses on the both sides of drilling,and the vertical axis is the major axis of ellipse with dumbbell-shape non-uniform distribution;the centers of the two ellipses are the largest displacement area,they are moving away from the drilling with extended water infusion,and the major and minor axes are longer with the pressure and time of water injection increase.关键词
煤层注水/径向位移/非均匀分布/Gauss2D拟合/COMSOL模拟Key words
coal seam water infusion/radial displacement/non-uniform distribution/Gauss2D fitting/COMSOL simulation分类
资源环境引用本文复制引用
武芳冰,齐庆杰,董子文,李兴华,景所香,王欢..注水钻孔周围煤体径向位移数值模拟[J].辽宁工程技术大学学报（自然科学版）,2017,36(6):574-580,7.基金项目
国家自然科学基金(51274115) （51274115）
辽宁省教育厅一般项目(L2015221) （L2015221）
