摘要
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。
The causes of roof caving at Niu Bizi intersection of NO.24061 yard in Jiulishan Coal Mine are introduced.It is proposed that I-beam shaped supports by own design and processing are applied for support in the roof caving area.The better effect is obtained.A reference is provided for similar support of roof caving.
出处
《煤炭技术》
CAS
北大核心
2011年第9期83-85,共3页
Coal Technology
