| FLAC在煤岩变形破裂力电耦合规律研究中的应用 |
| |
| 引用本文： | 肖红飞,何学秋,冯涛,王恩元,郑百生.FLAC在煤岩变形破裂力电耦合规律研究中的应用[J].煤炭学报,2004,29(6):694-698. |
| |
| 作者姓名： | 肖红飞 何学秋 冯涛 王恩元 郑百生 |
| |
| 作者单位： | 1. 湖南科技大学,能源与安全工程学院,湖南,湘潭,411201
2. 中国矿业大学,能源科学与工程学院,江苏,徐州,221008 |
| |
| 基金项目： | 国家自然科学基金资助项目(50204010)，湖南省自然科学基金资助项目(02JJY2076)，国家安全生产科技发展计划项目(04-232，04238)，湖南省科技攻关项目(03JTY2005) |
| |
| 摘 要： | 运用FLAC软件对加载煤岩进行了三维FLAC分析与应力场数值模拟计算，结合基于脆性材料损伤特性和强度统计理论以及实验室测定结果得到的煤岩变形破裂过程电磁辐射与应力之间的耦合关系式，对单轴压缩与矿山巷道掘进煤岩变形破裂过程中应力与产生的电磁辐射信号进行了耦合研究，耦合计算结果与实验测定结果吻合，表明选取的应力场数值模拟软件FLAC可以很好地模拟煤岩受载时内部应力变化规律．
|
| 关 键 词： | FLAC 应力场 煤岩变形破裂 力电耦合 |
| 文章编号： | 0253-9993(2004)06-0694-05 |
| 修稿时间： | 2004年2月27日 |
Application of FLAC in the research on the coupling laws between EME and stress fields during the deformation and fracture |
| |
| XIAO Hong-fei.Application of FLAC in the research on the coupling laws between EME and stress fields during the deformation and fracture[J].Journal of China Coal Society,2004,29(6):694-698. |
| |
| Authors: | XIAO Hong-fei |
| |
| Affiliation: | XIAO Hong-fei~ |
| |
| Abstract: | The numerical calculation and analysis of stress fields in the course of loading for coal or rock were simulated by means of fast lagrangian analysis of continua(FLAC) software.According to the stress values and the coupling equation between EME(electromagnetic emission) and stress fields during the deformation and fracture of coal or rock on the basis of damage characteristic and statistical intensity theory of the brittle material such as coal or rock, the coupling laws between stress and EME signal during axial loading or mine tunnel excavation were researched.The simulated results are consistent with the experimental results.The researching results show that: the FLAC software adopted can efficiently simulate the stress fields of coal or rock when compressed. |
| |
| Keywords: | FLAC stress fields deformation and fracture of coal or rock couples between EME and stress |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
