The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
Research on Rational Width of Chain Coal-pillar in Large Mining Height Workface Recovery Roadway of Shallow Coal Seam
Author(s): 
Pages: 61-64
Year: Issue:  12
Journal: Safety in Coal Mines

Keyword:  shallow coal seamlarge mining heightmining roadwaycoal-pillar width;
Abstract: 为研究近浅埋煤层大采高工作面合理护巷煤柱的留设问题,以和善煤矿5103工作面回采巷道为研究对象,通过理论计算和数值模拟分析,得出了合理的护巷煤柱宽度为25 m。现场应用后实测回采巷道顶底和两帮移近量均为35 mm左右,从而论证了其可行性。
Related Articles
No related articles found