This paper analyzes the problems appearing in the bolt support construction of coal roadway, and advances some solving measures.

分析了煤巷锚杆支护施工中出现的问题，提出了相应的解决措施。

youdao

When advancing and uncovering coal in roadway, better construction method is vibration shot, metal framework, borehole bleed-off and hydraulic hole, of which vibration shot is principal.

井巷掘进揭煤时，较好的施工方法是震动放炮，金属骨架，钻孔排放和水力冲孔，尤以震动放炮为主。

youdao

The paper introduced the excavation features, blasting method and parameters, construction technology and organization of the shallow borehole smooth blasting technology in clay and rock roadway.

介绍了浅孔光爆技术在黏土岩中的掘进特点、爆破方法及参数、施工工艺及组织。

youdao

Construction is projected to take five years, including three years of active work on the roadway, and be completed in 2017, said Joe Keane, the bridge division's chief engineer.

WSJ: Plan to Aid Staten Island Commuters