【摘要】 通过方案比较,确定了台阶法施工是大倾角上山架棚施工中,有效防止迎头岩壁片矸的有效措施之一,运用于实践,取得了良好的安全效果。更多还原

【Abstract】 Through the compare with three blue prints,this anticle confirmed that meathod constructed step by step is good for preventing the pieces of waste rock dropping from the working face in the construction which is high spud angle up to hill cribbing.The successful conceive of this meathod has been bring to bear in practice and acquired nicer secure impact.更多还原