大断面沿空掘巷锚网索与U型棚腿联合支护技术

Technique of Large-section Gob-side Entry Driving Cable Anchor and U-Shaped Booth Lag Joint Supporting

大采高工作面上、下风巷沿空掘进的支护问题一直是大力推广锚网索支护技术的难题。潘一矿通过对13-1煤层采煤工作面采场应力的分布规律进行仔细分析和研究,在2321(3)大采高工作面上风巷成功实践了锚网索与U型棚腿联合支护技术,并先后在1511(3)下顺槽和2632(3)上风巷得到成功推广,取得了较好的经济效益和社会效益。

The question of large mining gob - side entry driving support in upperairway and lower airway on the height working faee has always been a diffieult problem of energetically extension. Through earefully analysis and researeh of stress of stope of 13 - 1 coal faee, Pan Yi coal mine had practiced cable anchor and U - shaped booth lag joint supporting teehnique in 2321 （3） Large mining height faee in the upper airway sueeessfully, and aehieved sueeessful extension in 1511 （3） upper airway and 2632（3） upper airway sueeessively, which made great eeonomic and social benefits.