Research into stope roof control of compound roof by solid backfilling mining

来源 :矿业科学技术学报:英文版 | 被引量 : 0次 | 上传用户:zhang514409411
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
Based on the analysis of the failure characteristics and backfilling effect of the compound roof at 1801 backfilling workface in Taiyuan coal mine,China,we propose a method of controlling the presubsidence of a compound roof by using pre-stressed bolts to
其他文献
The main objective of this study was to determine the consolidation behaviour of clay slurries.A finegrained clay with high consistency limits(WL = 180%,wP= 120%
Convergence of roof and floor in underground mine openings is a common occurrence. This convergence not only adversely affects the ability of workers, equipment
期刊
Measurement while drilling systems are becoming an important part of excavation operations for rock characterization and ground support design that require reli
Based on deformation and failure characteristics of the second belt conveyor roadway at level II of Zhuxianzhuang coal mine, laboratory experiments, numerical c
Based on a shallow roadway with weakly cemented soft strata in western China, this paper studies the range and degree of plastic zones in soft strata roadways w
This work aimed for pyrite separation from Abu Tartur black shale as a source of sulfur to be an added economic value of Abu Tartur area. The considered samples
The effect of slope angle for external overburden dump in response to average and heavy rainfall has been analyzed using a two dimensional finite difference met
期刊
The stability control of longwall coalface is the key technology of large-cutting-height mining method.Therefore,a systematic study of the factors that affect c
In the present study, the kinetics of thermal decomposition of hydrated minerals associated in natural hematite iron ores has been investigated in a fixed bed s
Mining method selection is the first and the most critical problem in mine design and depends on some parameters such as geotechnical and geological features an