CAJ | 학술논문

针对平定裕泰煤业15101综放工作面回风巷道围岩大变形、反复破坏的控制难题，在总结类似矿区相关巷道支护经验基础上，分析得出回采巷道具有大埋深、大断面、强烈动压影响等特征，并结合现场地质生产条件，提出采用矱21.6 mm， L＝5.25 m的高强度大直径高预应力短锚索进行顶板全锚索支护的控制方案，并在现场应用。实践表明：采用该支护方案后26 d左右，回风巷道变形趋于平稳，顶板下沉量不超过176mm，底鼓量不超过110mm，左帮最大移近量87mm，右帮最大移近量为95mm，巷道围岩变形得到有效控制，且巷道服务期间未扩刷整修，技术经济效益显著，可为类似巷道围岩控制提供技术支撑。
침대평정유태매업15101종방공작면회풍항도위암대변형、반복파배적공제난제，재총결유사광구상관항도지호경험기출상，분석득출회채항도구유대매심、대단면、강렬동압영향등특정，병결합현장지질생산조건，제출채용확21.6 mm， L＝5.25 m적고강도대직경고예응력단묘색진행정판전묘색지호적공제방안，병재현장응용。실천표명：채용해지호방안후26 d좌우，회풍항도변형추우평은，정판하침량불초과176mm，저고량불초과110mm，좌방최대이근량87mm，우방최대이근량위95mm，항도위암변형득도유효공제，차항도복무기간미확쇄정수，기술경제효익현저，가위유사항도위암공제제공기술지탱。
In order to solve difficult problem of supporting large-deformation and repeatedly-broken air-return roadway of 15101 Mining Face in Pingding Yutai Coal Company , on the basis of summing up experience of roadway supporting , a supporting projection of whole short anchored cable with high strength , high pre-stress and large diameter was put forward.Practice showed that after applying this method 26 days later , deformation of air-return roadway came to stable.Roof subsidence value was not than 176 mm, floor heave value was not than 110mm, left and right side’ s maximum deformation value were respectively 87mm and 95mm.Roadway deformation was controlled effectively.Good technical and economic profit was made.