Progress in the research and application of coal mining with stowing

来源 :International Journal of Mining Science and Technology | 被引量 : 0次 | 上传用户:jayngu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The development and achievements of modern coal mining with stowing are discussed in this paper. The necessity of developing coal mining with stowing is briefly summarized and internal damage within the strata and external damage on surface induced by longwall working with caving are discussed. Technological features of coal mining with pneumatic stowing in Germany, and fully mechanised coal mining with solid dense stowing in China, are discussed. In German hard coal mining stowing technologies are for technical, infrastructural and economical reasons not applicable. The discussion includes the stowing material transportation system, the stowing machine, and processes at the face. Progressiveness and application universality of China’s fully mechanised coal mining with solid dense stowing are illustrated through practical examples with different conditions. Obviously, the fully mechanised coal mine with solid dense stowing can be improved by automaion systems. This paper discusses further developmental potential of the technology. The development and achievements of modern coal mining with stowing are discussed in this paper. The necessity of developing coal mining with stowing is briefly summarized and internal damage within the strata and external damage on surface induced by longwall working with caving are discussed. Technological features of coal mining with pneumatic stowing in Germany, and fully mechanized coal mining with solid dense stowing in China, are discussed. In German hard coal mining stowing technologies are for technical, infrastructural and economical reasons not applicable. The discussion includes the stowing material transportation system, the stowing machine, and processes at the face. Progressiveness and application universality of China’s fully mechanized coal mining with solid dense stowing are illustrated through practical examples with different conditions. Obviously, the fully mechanized coal mine with solid dense stowing can be improved by automaion systems This paper discusses furt her developmental potential of the technology.
其他文献
目的:观察核转录因子κB(NF-κB)在Sj(O)gren综合征(SS)涎腺组织中的表达,探讨NF-κB在SS发病过程中的调控作用.方法:采用免疫组化法检测20例SS患者和8例正常唇腺组织中NF-κ
目的 了解我国孕早期女性抑郁现状,并探究孕前及孕早期烟草暴露与孕早期抑郁的关系,为孕早期抑郁的预防提供理论依据 . 方法 本研究相关数据来源于中国孕产妇队列研究(CPWCS)
Investigations were carried out, on a low grade siliceous iron ore sample by magnetic separation, to establish its amenability for physical beneficiation. Miner
期刊
在河南省的建筑装饰企业中,大鹏装饰工程有限公司(以下简称大鹏装饰)是其中的领军者。成立于1995年的大鹏装饰,已拥有近20年的发展历史。在这20年里,大鹏装饰几乎是与河南省
毛果苔草湿地反射率平均为21.92%,全生长季反射太阳辐射能585.858MJ/m2.群落对太阳辐射的透射率平均为20.16%,在生长季节内透射太阳辐射能538.88MJ/m2.毛果苔草湿地群落的相
介绍仙桃保税物流中心,对其建设背景、功能定位,项目选址以及规划建设方案进行分析研究.
期刊
选取淮南矿区不同风化年限的煤矸石进行分层采样,通过对所采135份样品的粒组划分及保水性的定量测试,对比分析了表生作用下煤矸石块度分布特征及其保水性变化规律,为矿区煤矸
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊