Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Hebei Coal》 2005-01
Add to Favorite Get Latest Update

Practice on the roof controlling in "Three soft" coal layer artillery mining coal work face

ZHANG Zhen-ju~(1.2),XI Ming-zhe~2(1.Henan Engineering Institute,Jiaozuo 454000,China;2.Zhengzhou Coal High-grade Technical school,Xinzheng 451150,China)  
This paper shows the method of the effective roof controlling through the analysis on the roof accidents and the artillery mining coal technology in "Three soft"coal layer.
【CateGory Index】: TD327.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 1 Hits
1 ZHANG Zheng-ping,ZHANG Rui-lin(He'nan Polytechnic University,Jiaozuo 454000,China);Soft Coal Mining Face with the Characteristics of the Stress Concentration[J];Coal;2011-04
Chinese Journal Full-text Database 1 Hits
1 FAN De?Heng 1,CHEN Bing?zhen 1,SHI Ai?ping 2 (1.Zhengzhou Coal Group Ltd.Co.,Xinmi 452371,China;2.Lu′an Mining Group Ltd.Co.,Changzhi 046205,China);Roof Control of Sub-level Caving Mining in "Three-weak Elements" Unstable Thick Seam[J];Coal;2002-02
Chinese Journal Full-text Database 1 Hits
1 LI Chong,LI De-zhong(Anhui University of Science and Technology,Huainan 232001,China);Roof control technology with π steel beam for mining face in seam with ultra soft roof,floor and coal[J];Coal Science and Technology;2007-03
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved