Practices on Technology of Fully Mechanized Top Coal Caving Mining Face in Thick Seam Passing Through Ultra Large Fault
Abstract：In order to effectively prevent low mining rate, mining and driving connection contradiction and other problems occurred when the fully mechanized top coal caving mining face passing through ultra large fault, the geological exploration technology was applied to in- vestigate the certain position of the fault. With the economic and technical comparison between the cross over passing fault plan and the direct passing through fault plan, based on the direct passing through fault method, the layer level adjustment, powered support protec- tion, coal shearer improvement and other technical measures were provided and applied. The practice results showed that with the im- provement, the direct passing through fauh technology could ensure the fully mechanized top coal caving mining face successfully passing through the ultra large fault and the recovered coal was up to 1. 264 million t.
Keywords：fully mechanized top coal caving mining faceuhra large faultlayer level adjustmentimprovement of coal shearerpoweredsupport protection
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 52-54 )