The excavation sequence is the key to the roadway stability in long-span full coaldrift.
大跨度全煤巷道开挖顺序是关系到巷道稳定性的关键。
2
Ma Nianjie, Gao Qian. Reliability design of bolt supporting in coaldrift. Project Identification Material of coal Science Fnd, 1997.
马念杰，高谦。煤巷锚杆支护可靠性设计。煤炭科学基金项目鉴定材料，1997。
3
The practice of bolt support in reserved coaldrift in mining pressure area is introduced, helpful conclusion is obtained through observation and analyse.