煤矿安全2017，Vol.48Issue(5)：1-4,4.DOI:10.13347/j.cnki.mkaq.2017.05.001
穿层水力造穴钻孔瓦斯抽采效果数值模拟研究
Numerical Simulation Study on Gas Drainage Effect by Through-beds Hydraulic Flushing Hole
摘要
Abstract
The flushing shape is simplified to a cylinder with a diameter of 0.7 m,according to the statistics of coal output by hydraulic flushing technology in the Sijiazhuang Mine,and a fluid solid coupling mechanics model by using simulation software of COMSOL Multiphysics based on elastic mechanics and gas flow theory is built to analysis the effective radius of gas drainage and the appropriate spacing of holes.It has been verified by field inspection,the simulation results are basically consistent with the field measurements,it illustrates that the hydraulic flushing gas extraction parameters can be simulated by simplified form of flushing combining fluid-solid coupling mechanics model to provide convenient.关键词
穿层钻孔/流固耦合/水力冲孔造穴/数值模拟/有效半径Key words
through beds hole/fluid-solid coupling/hydraulic flushing/numerical simulation/effective radius分类
矿业与冶金引用本文复制引用
郝从猛,刘洪永,程远平..穿层水力造穴钻孔瓦斯抽采效果数值模拟研究[J].煤矿安全,2017,48(5):1-4,4.基金项目
国家自然科学基金资助项目(51304204) （51304204）
江苏高校优势学科建设工程资助项目 （）
中国矿业大学大学生创新创业基金资助大学生创新项目(DC201607) （DC201607）
