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。
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。
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。
Combining work practice, the paper focuses on the coal mine's adopting of anchor hollow bar supporting roadway mechanism, construction process and its technique parameters.
结合工作实际，重点介绍了煤矿采用端锚式注浆锚杆支护巷道机理、施工工艺及其技术参数。
Mainly used in roadway construction, excavation rock and soil volume, opencast working, blom up holes of explosion & pre-intensity, for water conservancy projects.
主要用于道路建设、土石方开挖及露天开采，水利工程爆破孔、预烈孔的凿岩工序，是理想的高效穿凿设备。
Shield machine is a large mechanical device that is widely used in the construction of tunnel engineering such as subway, railway, roadway, city infrastructure, and water and electricity utility.
盾构掘进机是一种广泛应用于地铁、铁路、公路、市政、水电等隧道工程施工的大型机械设备。
The advantages of this method are inexpensive, simple for construction and able to get good benefits to retain roadway for next sub-level.
该法施工工艺简单，成本低廉，可使沿空留巷达到较好的技术经济效果。
The advantages of this method are inexpensive, simple for construction and able to get good benefits to retain roadway for next sub-level.
该法施工工艺简单，成本低廉，可使沿空留巷达到较好的技术经济效果。
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