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在大采深 ( - 1 0 2 5m水平 )、高地压松软岩层中施工大断面 ( 2 8m2 )硐室 ,根据新奥法理论 ,采用初次支护卸压、二次高强锚网联合支护控制围岩变形 ,取得了成功 ,为深部松软围岩巷道支护施工积累了的经验。
According to the New Austrian Theory, using the support and pressure relief of the first support and the combined support of the secondary high-strength anchor net in large deep mining (-1205m level), large-section caving (28m2) Surrounding rock deformation, and achieved success, deep soft surrounding rock roadway support construction has accumulated experience.