The electromagnetic radiation monitoring of the stress state on 2218 tunnelling face in chengzhuang mine 成庄矿2218掘进工作面应力状态电磁辐射监测
Practice and cognition of combined gas control and safe advance in an outburst seam heading face 突出煤层掘进工作面瓦斯综合治理及安全掘进的实践与认识
Inquisition of forecasting dangerousness of heading face outburst by drillings and coalbed temperature indices 用温度指标预测掘进工作面突出危险性的探讨
Gas outburst prevention technology in high gassy gateway heading face of quot; three soft quot; instability coal seam 不稳定煤层高突区域掘进工作面瓦斯综合治理
Preliminary application of gas pre - drainage from coal seam by long holes in heading face to prevent coal and gas outburst 掘进工作面应用长钻孔预抽煤层瓦斯防止煤与瓦斯突出的效果
This paper analyzes on the influence of the variation in thickness of coal seam and the supporting method on the coal quality , and based on this , advances some measures for reducing the gangue production to improve the coal quality on the tunneling faces 分析了煤层厚度变化和支护方式对煤质的影响,在此基础上提出了若干减少出矸以提高掘进工作面出煤质量的措施。
Based on rheologic and mutative mechanism of coal and gas outburst , this article discusses the forecast of outburst danger of in 7 ( superscript # ) coal heading face of jinjia mine by adopting coal and gas outburst volume dynamic index after blowing out . . it determines the index critical value , and also presents the tentative testing result 摘要基于煤与瓦斯突出流变突变机理，探讨了金佳矿7 (上标# )煤层掘进工作面采用放炮后落煤瓦斯涌出量动态指标预测突出危险性，确定了指标临界值，并介绍了初步试验效果。
For avoiding the occurrence of explosion - related accidents , the author presents an introduction to the safety regulations that should be observed . these includes the check of gas concentration before charge and initiation and after blasting , the adoption of interlocked blasting system , indirect blasting , initiation by stages at coal and beading faces , use of water stemming , shallow - hole balsting , blasting earning and safety distance 为了防止在井下爆破中引起事故,对一炮三检制和联锁爆破制,反向爆破作业,采煤、掘进工作面的分次起爆作业,水炮泥的使用,浅眼爆破作业,爆破警戒和爆破安全距离等安全规定进行介绍和分析。
This article puts forward the concepts , definitions , basic theorems and mathematic models of the information force , energy and the information measure of the structural complexity ; establishes new metrics for assessing the production systems structural complexity ; and proposes theorems of simplification and complexity decrease for production systems of enterprises . a case study of structural complexity assessment for excavation working face of mine has been illustrated 提出了信息力、能和结构复杂性信息量度量的基本概念、定义、基本原理和数学模型;建立了企业生产系统结构复杂性评价的新尺度;提出了评价方法和系统结构的简约化、复杂性减少原理;并应用此理论与方法对井工企业掘进工作面系统结构复杂性评价进行了实证研究
