Coal Science and Technology Articles

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1Issue analysis and technical measures for up-dip mining of overhand longwall face in deep inclined seam1-2，13

2Practices on open-off cut excavation and support technology for longwall minin g face with light weight hydraulic powered caving supports3-5，18

3Discussion on ventilation leakage law in gateway of room and pillar mining6-8

4Pilot hole of coal bunker constructed with long straight screw c ut blasting9-10,18

5Future of foundry coke briquetting technology and development11-13

6Anti-falling protection device of skip hoisting14-15

7Application and improvement of BGP9L-6A mine flame proof vacuum breaker16-18

8Logging interpretation of coal bed methane index19-20

9Water disaster and prevention and control technology in Zhengzho u Mining Area21-23,26

10Gas distribution and split flow feature in gas gateway of full y mechanized caving face24-26

11New development in geomechanics measurement and test technology of mine roadway surrounding rook27-30

12Microcosmic failure detection analysis and critical failure action for brittle rock31-33,30

13Test and research on flyash as backfill material34-37

14Light intelligent power charging device with fuzzy control38-41,30

15Determination of top coal cavability in fully mechanized caving42-44

16Some technical problem needs to be solved in hydraulic hoist dev elopment45-48