| 高压小射流破煤力学分析及防突机理研究 |
| |
| 引用本文： | 张嘉勇,郭立稳,罗新荣,高海峰. 高压小射流破煤力学分析及防突机理研究[J]. 矿山机械, 2011, 0(6) |
| |
| 作者姓名： | 张嘉勇 郭立稳 罗新荣 高海峰 |
| |
| 作者单位： | 中国矿业大学安全工程学院;河北联合大学矿业工程学院; |
| |
| 基金项目： | 河北省科技支撑计划项目(11276904D) |
| |
| 摘 要： | 运用ANSYS/LS-DYNA模拟分析高压小射流冲击破碎煤体的力学过程,并研究其防治突出机理,验证了高压小射流在工作面煤体中形成超前槽洞,促使煤体暴露面积增大,煤层内部卸压,为瓦斯释放和瓦斯流动创造了条件。此外,在地应力的作用下,槽孔周围的煤体会向槽孔空间移动,进一步扩大槽孔卸压与瓦斯排放的范围,从而消除控制范围内煤体的突出潜能。
|
| 关 键 词： | 高压小射流 破煤 煤与瓦斯突出 防突机理 |
Dynamical analysis of coal fracturing with high-pressure mini-jet and study on outburst prevention mechanism |
| |
| ZHANG Jiayong,,GUO Liwen,LUO Xinrong,GAO Haifeng School of Safety Engineering,China University of Mining , Technology,Xuzhou ,Jiangsu,China College of Mining Engineering,Hebei United University. Dynamical analysis of coal fracturing with high-pressure mini-jet and study on outburst prevention mechanism[J]. Mining & Processing Equipment, 2011, 0(6) |
| |
| Authors: | ZHANG Jiayong GUO Liwen LUO Xinrong GAO Haifeng School of Safety Engineering China University of Mining & Technology Xuzhou Jiangsu China College of Mining Engineering Hebei United University |
| |
| Affiliation: | ZHANG Jiayong1,2,GUO Liwen2,LUO Xinrong1,GAO Haifeng2 1School of Safety Engineering,China University of Mining & Technology,Xuzhou 221116,Jiangsu,China 2College of Mining Engineering,Hebei United University |
| |
| Abstract: | The paper simulates and analyses the dynamical course of coal fracturing with high-pressure mini-jet by ANSYS/LS-DYNA. In addition, it studies the outburst prevention mechanism, which verifies that ahead holes forms on coal of working faces due to high-pressure mini-jet, thus the coal exposing areas increase and the pressure inside coal beds relieves, so as to create conditions for gas relief and flow. Moreover, with the action of ground stress, the coal around holes move into the holes, thus the pressure i... |
| |
| Keywords: | high-pressure mini-jet coal fracturing coal and gas outburst outburst prevention mechanism |
| 本文献已被 CNKI 等数据库收录！ |
|
