欢迎访问《现代矿业》杂志官方网站,今天是 分享到:
×

扫码分享

现代矿业 ›› 2024, Vol. 40 ›› Issue (02): 226-228.

• • 上一篇    下一篇

某矿动压影响巷道围岩控制技术

采用数值模拟方法,模拟西北某矿 13084 运输顺槽掘进存在的动压影响。结果表明,
40 d 时,13084 运输顺槽上部采面垮落,产生的动压延伸至该区域,导致 13084 运输顺槽断面整体垮
落。通过顶板观测数据可知,13084运输顺槽采用原支护措施,在 30 d时,巷道整体位移量最大达到
629 mm,巷道变形严重;采用管棚支护和 U型钢增强支护措施,巷道最大变形量为 59 mm,该支护措
施有效控制了13084运输顺的槽动压影响,围岩稳定。
  

  1. 1. 山东能源西北矿业黄陶勒盖煤炭有限责任公司;
    2. 山东能源集团西北矿业有限公司
  • 出版日期:2024-02-18 发布日期:2024-08-14

Dynamic Pressure Effect of Roadway Surrounding Rock Control Technology

The effect of dynamic pressure on 13084 transport along channel tunneling in a northwest⁃
ern mine is numerically simulated. The results show that,on the 40th day,the upper mining face of 13084
transport trough collapsed,and the dynamic pressure generated extended to this area,resulting in the over⁃
all collapse of 13084 transport trough section. According to the observation data of the roof,the overall dis⁃
placement of the roadway reaches a maximum of 629 mm when the original support measures are adopted on
the 30th day in the transportation groove of 13084,and the deformation of the roadway is serious at this
time. The maximum deformation of roadway is 59 mm by adopting pipe shed support and U-shaped steel re⁃
inforcement support measures,which effectively control the pressure influence of 13084 transport along the
channel and stabilize the surrounding rock.
  

  1. 1. Huangtaolegai Coal Co.,Ltd.,Shandong Energy Group Xibei Mining;
    2. Shandong Energy Group Xibei Mining Co.,Ltd
  • Online:2024-02-18 Published:2024-08-14

摘要:

采用数值模拟方法,模拟西北某矿 13084 运输顺槽掘进存在的动压影响。结果表明,
40 d 时,13084 运输顺槽上部采面垮落,产生的动压延伸至该区域,导致 13084 运输顺槽断面整体垮
落。通过顶板观测数据可知,13084运输顺槽采用原支护措施,在 30 d时,巷道整体位移量最大达到
629 mm,巷道变形严重;采用管棚支护和 U型钢增强支护措施,巷道最大变形量为 59 mm,该支护措
施有效控制了13084运输顺的槽动压影响,围岩稳定。

Abstract:

The effect of dynamic pressure on 13084 transport along channel tunneling in a northwest⁃
ern mine is numerically simulated. The results show that,on the 40th day,the upper mining face of 13084
transport trough collapsed,and the dynamic pressure generated extended to this area,resulting in the over⁃
all collapse of 13084 transport trough section. According to the observation data of the roof,the overall dis⁃
placement of the roadway reaches a maximum of 629 mm when the original support measures are adopted on
the 30th day in the transportation groove of 13084,and the deformation of the roadway is serious at this
time. The maximum deformation of roadway is 59 mm by adopting pipe shed support and U-shaped steel re⁃
inforcement support measures,which effectively control the pressure influence of 13084 transport along the
channel and stabilize the surrounding rock.

Key words: