main haulage level 炙输水平
main haulage roadway 运输大巷
main haulage road 主要运输平巷
main haulage drift 主要运输巷道
main haulage horizon 主运输水平
main haulage track 主运输道
main haulage cross-cut 主要运输石门
main haulage leve 炙输水平
main haulage tunnel 主要运输平硐
Through analysis to weak coalbed and harmfulness to roadway, main haulage roadway and room supporting design and adaptability condition are discussed in weak coalbed.
通过对松软煤层的性质及其对巷道的危害分析，探讨了松软煤层中主要运输巷道及硐室支护设计形式及适用条件。
This paper introduces controlled blasting technology on signal chamber of pit-bottom and main haulage roadway, which are of complex condition, lithological character and highly security.
介绍了采用控制爆破技术施工位于井底车场及主要运输大巷的信集闭峒室，条件复杂，岩性变化大，要求安全性高。
According to the analysis of haulage accident and the construction of accident tree, the main cause of accident is found out.
通过对运输事故的分析，构造地下矿运输事故的事故树，找出发生事故的主要因素。
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