| 软煤层大采高综采煤壁片帮燕尾模型研究 |
| |
| 引用本文： | 杨波,孟祥瑞,赵光明,高召宁.软煤层大采高综采煤壁片帮燕尾模型研究[J].煤,2012(1):1-4. |
| |
| 作者姓名： | 杨波 孟祥瑞 赵光明 高召宁 |
| |
| 作者单位： | 安徽理工大学能源与安全学院;煤矿安全高效开采省部共建教育部重点实验室 |
| |
| 基金项目： | 教育部“新世纪优秀人才支持计划资助”项目(NCET-08-0819);安徽高校省级自然科学研究重点项目(KJ2011A085);霍英东青年教师基金基础性研究课题(121050);中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(10KF03);淮南市科技计划项目(2009A05014) |
| |
| 摘 要： | 以边坡工程分析方法为基础,建立了软煤层大采高开采面煤壁片帮的燕尾突变模型。通过讨论分析系统稳定性和煤壁的突变失稳过程,得知存在2种失稳情况。通过比较极软煤层不同煤硬条件下释放能量值,结果表明煤壁发生突然破坏失稳伴随着能量大量转化与释放的现象。最后提出了控制煤壁片帮的措施方法,从理论上验证了煤壁片帮现象是一种非线性突变现象,是一个由不同因素影响的复杂过程。
|
| 关 键 词： | 大采高综采 煤壁片帮 燕尾突变模型 极软煤层 |
Research on Swallow-tailed Catastrophe Model of Coal Wall Spalling in Fully Mechanized Caving Face with Great Mining Height for Soft Coal Seam |
| |
| YANG Bo,MENG Xiang-rui,ZHAO Guang-ming,GAO Zhao-ning.Research on Swallow-tailed Catastrophe Model of Coal Wall Spalling in Fully Mechanized Caving Face with Great Mining Height for Soft Coal Seam[J].Coal,2012(1):1-4. |
| |
| Authors: | YANG Bo MENG Xiang-rui ZHAO Guang-ming GAO Zhao-ning |
| |
| Affiliation: | 1,2(1.College of Energy and Safety,Anhui University of Science and Technology,Huainan 232001,China; 2.Provincal and Ministry Cooperated Key Lab of Safety and High Efficient Mining,Huainan 232001,China) |
| |
| Abstract: | Coal wall spalling is a typical nonlinear process.By applying slope stability theory,a swallow tail catastrophe model for spalling in the fully mechanized caving face with great mining height was set up.There are two kind of instability situation by analyzing the stability of the system and the process of call wall spalling instability.to compare the released energy in different hardness coefficient of ultra soft coal seam,this paper have derived that coal wall was suddenly damaged with a great deal of energy release.At last,puts forward the methods and measures for control of call wall spalling.Theoretically proved that coal wall spalling phenomenon is a kind of nonlinear catastrophe phenomenon,and is a complex process with different influence factors. |
| |
| Keywords: | fully mechanized caving face with great mining height call wall spalling swallow tail catastrophe model ultra soft coal seam |
| 本文献已被 CNKI 等数据库收录！ |
