期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
“两硬”条件大采高综采老顶初次垮落力学模型研究 被引量:9
1
作者 王家臣 张剑 +1 位作者 姬刘亭 郑厚发 《岩石力学与工程学报》 EI CAS CSCD 北大核心 2005年第A01期5037-5042,共6页
针对“两硬”条件大采高综采老顶初次垮落的特点,建立全长工作面力学模型,提出沿工作面布置方向老顶形成“三”块相互铰接的薄板结构,解释全长工作面呈分段、分期、迁移来压的原因。运用弹性薄板理论,计算出不同约束边界条件下薄板... 针对“两硬”条件大采高综采老顶初次垮落的特点,建立全长工作面力学模型,提出沿工作面布置方向老顶形成“三”块相互铰接的薄板结构,解释全长工作面呈分段、分期、迁移来压的原因。运用弹性薄板理论,计算出不同约束边界条件下薄板内部的戍力分布,论证了工作面中部来压强度大于头、尾部。 展开更多
关键词 采矿工程 两硬 大采高综采 初次垮落 全长工作面 力学模型 薄板理论
下载PDF
Longwall automation: Delivering enabling technology to achieve safer and more productive underground mining 被引量:30
2
作者 Ralston Jonathon C. Reid David C. +1 位作者 Dunn Mark T. Hainsworth David W. 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2015年第6期865-876,共12页
The ongoing need to deliver improved safety, productivity and environmental benefit in coal mining presents an open challenge as well as a powerful incentive to develop new and improved solutions. This paper assesses ... The ongoing need to deliver improved safety, productivity and environmental benefit in coal mining presents an open challenge as well as a powerful incentive to develop new and improved solutions. This paper assesses the critical role that enabling technologies have played in the delivery of remote and automated capability for longwall mining. A brief historical account is given to highlight key technical contributions which have influenced the direction and development of present-day longwall technology. The current state of longwall automation is discussed with particular attention drawn to the technologies that enable automated capability. Outcomes are presented from an independently conducted case study that assessed the impact that CSIRO's LASC longwall automation research has made to the longwall mining industry in Australia. Importantly, this study reveals how uptake of this innova- tive technology has significantly benefitted coal mine productivity, improved working conditions for personnel and enhanced environmental outcomes. These benefits have been widely adopted with CSIRO automation technology being used in 60 per cent of all Australian underground operations. International deployment of the technology is also emerging. The paper concludes with future challenges and opportunities to highfight the ongoing scope for longwall automation research and development. 展开更多
关键词 Safety Productivity Environment Mining automation Longwall mining Remote mining
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部