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通过对九里山矿24061车场牛鼻子交岔点发生冒顶原因分析,提出了采用由自行设计、自行加工的异型工钢支架进行冒顶区支护,取得了很好的支护效果,可为类似的冒顶支护提供一定的借鉴。
By analyzing the caving reason of the intersection of cattle nose and nodal at 24061 yard of Jiulishan mine, it is proposed to adopt the special-shaped steel bracket which is designed and machined by itself to carry out the roof support and achieve good support effect, which can be similar to the roof fall Support provide some reference.