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。
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.
淮南丁集煤矿西部采区南运输大巷埋深达955 m，已显现出深部开挖的特征。
South transportation roadway of depth of 955 m in Huainan Dingji Mine western coal area has shown the characteristics of the deep excavation.
就邯郸矿务局云驾岭煤矿- 15 0水平运输大巷施工工程作了系统性研究。
This paper makes a systematical investigation into the excavation project of the haulage tunnel at -150m level in Yunjialing Coal Mine, Handan Mines Bureau.
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