The Application of High Strength Anchor about Compound Roof Support about in Guantun Coal Mine
50101 working face roof is typical compound roof in Guantun coal mine.Gateway design uses anchor-net + anchor rope supporting method.Sinking large roof abscission layer, the maximum abscission reached 450 ~ 500 mm Within one month after the construction.Anchor cable faults is frequently.In order to solve the above problem, We proposed to anchor cable φ15.24 mm changed toφ21.60 cable and Mining steel i-beam changed to W steel band.We can improve the support strength of anchor cable.With new support mode, We successfully make the roof abscission layer of subsidence and anchor cable fracture rate decline.
bolt support compound roof anchor cable abscission layer roof pressure
Li Chunge Duan Hongmin Wang Dequan
Xinjiang engineering college,Urumqi 830091 Beijing Tiandihuatai mining engineering technology co.,LTD,Beijing 100013 Xinjiang engineering college,Urumqi 830091;Changan University,xian,Shanxi,710054,China
国际会议
香港
英文
281-283
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）