摘要
东峰煤矿采用了沿空留巷无煤柱开采技术。为解决沿空留巷复用巷道的围岩稳定问题,确保3202综放工作面及后续工作面沿空留巷围岩的稳定,对3202进风顺槽留巷复用段进行钻孔窥视探测,分析总结沿空留巷变形规律。研究结果为东峰煤矿提供了系统的基础实测数据,为3202综放工作面巷道围岩稳定性控制和支护优化奠定了理论基础。
Dongfeng Coal Mine has adopted the non-pillar mining technology of gob-side entry retaining.In order to solve the problem of surrounding rock stability in the reused roadway along the goaf and ensure the stability of the surrounding rock along the goaf in 3202 fully mechanized caving face and subsequent working faces,boreholes were drilled to observe and detect the reused section of the goaf in 3202 air intake channel,and the deformation laws of the goaf were analyzed and summarized.The research results provide a systematic basis for the measured data of Dongfeng Coal Mine,laying a theoretical foundation for the stability control and support optimization of the roadway surrounding rock of 3202 fully mechanized caving face.
作者
李志伟
LI Zhiwei(Dongfeng Coal Mine Co.,Ltd.,Shanxi Lanhua Group,Gaoping 048400,Shanxi,China)
出处
《能源与节能》
2023年第8期142-144,共3页
Energy and Energy Conservation
关键词
沿空留巷
围岩稳定
钻孔窥视
支护优化
gob-side entry retaining
surrounding rock stability
drilling observation
support optimization
