大断面煤仓施工及支护技术应用

Application of Large Section Coal Bunker Construction and Support Technology

针对兴无煤矿下组煤井底煤仓施工断面大、施工周期长、支护难度大等技术难题,通过采用正掘下行光面爆破施工工艺、“锚网+双层钢筋网混凝土浇筑”支护,提高了煤仓施工效率,降低了煤仓施工煤矸运输难度,保证了大断面煤仓围岩稳定,取得了显著应用成效。

Aiming at the technical problems of large section,long construction period and difficult support of the bottom coal bunker in Xingwu Coal Mine.By adopting the construction technology of smooth blasting under the heading and the support of"anchor net+double-layer reinforced concrete pouring",the construction efficiency of coal bunker is improved,the difficulty of coal gangue transportation in coal bunker construction is reduced,the stability of surrounding rock of large section coal bunker is ensured,and remarkable application effect is achieved.