202004

马兰矿28307工作面巷道支护技术方案研究
发布人:网站管理员 发布时间:2020/4/17 点击次数:110次
  

马兰矿28307工作面巷道支护技术方案研究
郗飞
(西山煤电马兰矿,山西 古交 030200)
摘要: 针对马兰矿28307 工作面所采煤层的具体地质赋存条件和巷道功能,选取巷道断面为矩形,尺寸为4.5 m×
3.5 m。根据相似煤巷支护经验选用“锚杆+锚索”联合支护方式,从理论方面计算了各项支护参数。最后通过现场工作
面实际变形量监测,证明此支护方案可以保证3202 回风顺槽的安全稳定。
关键词: 工作面;巷道;变形量;支护技术
中图分类号: TD353     文献标识码: A     文章编号: 2095-0802-(2020)04-0130-02
Study on Roadway Support Technology Scheme of 28307 Working Face in Malan Coal Mine
XI Fei
(Malan Coal Mine, Xishan Coal Electricity Group, Gujiao 030200, Shanxi, China)
Abstract: In view of the specific geological conditions and roadway functions of the 28307 working face in Malan Coal Mine, this
paper selected the roadway section as a rectangle with a size of 4.5 m×
3.5 m. According to the support experience of similar coal
roadway, the combined support mode of "bolt+anchor cable" was selected, and the support parameters were calculated theoretically.
Finally, through the actual deformation monitoring in the working face, it was proved that the support scheme could
ensure the safety and stability of 3202 return air chute.

Key words: working face; roadway; deformation; support technology