重庆大学学报：自然科学版2011，Vol.34Issue(11)：105-110,6.
钻孔抽放瓦斯流固耦合分析及数值模拟
Analysis and numerical simulation of fluid-structure coupling of gas drainage from boreholes
摘要
Abstract
Gas drainage from boreholes is main method of utilization and management of Chinese coal seam gas.As the exploitation depth increases,stress field and other factors on the impact of gas seepage are increasingly apparent.Based on the basis of a series of assumptions of coal seam gas,porosity and permeability equations are described by considering stress,coal seam gas pressure change on the coal produced by deformation of the skeleton.The fluid-structure coupling equations are derived by using the basic theorem of porous media flow and the fluid structure coupling theory.The gas seepage field is simulated and analyzed by using multi-physics coupling analysis software.The effect of gas pressure distribution,different burial depths and different drilling parameters（drainage negative pressure,drilling radius） on gas seepage field is obtained.Analysis of simulation results can provide theoretical guidance for on-site gas drainage.关键词
孔隙率/渗透率/流固耦合/数值模拟Key words
porosity/permeability/fluid-structure coupling/numerical simulation分类
矿业与冶金引用本文复制引用
司鹄,郭涛,李晓红..钻孔抽放瓦斯流固耦合分析及数值模拟[J].重庆大学学报：自然科学版,2011,34(11):105-110,6.基金项目
国家自然科学基金创新团队资助 （）
