Shaanxi Pioneering Architectural Technology Co. , Ltd.
Shaanxi Pioneering New Mineral Engineering Co. , Ltd.
Xi’an Green Mining Research Institute Co. , Ltd.
Shenmu Ningtiaota Coal Mining Co. , Ltd. , Shaanxi Coal and Chemical Industry Group

针对刀把型双工作面无法提前安装挡矸支架的难题,提出一种挡矸支架随采随装新方法,采取“架前柔性网+架间锚索+架后戗棚和木垛”防护措施隔离采空区,及时浇筑转角区横向和走向柔模砼墙彻底切断采空区,借助挡矸支架的横向自移功能将20.5m长挡矸支架快速安装复位。实践证明,该方法能够安全快速地将超长挡矸支架安装复位,满足陕北矿区日推采12~18m沿空留巷工作面的生产要求。

Aiming at the problem that the cutter-type double working face cannot install the gangue retaining support in advance, a new method of gangue retaining support that ming with loading was proposed. The protective measures of “flexible net in front of the support+anchor cable between the supports + closure shed and wooden crib behind the support” were adopted to isolate the goaf, and the horizontal and strike flexible formwork concrete walls in the corner area were poured in time to cut off the goaf. With the help of the lateral self-moving function of the gangue retaining support, the 20. 5 m long gangue retaining support was quickly installed and reset. Practice has proved that this method can safely and quickly install and reset the super-long gangue retaining support, and meet the production requirements of 12 m to18 m gob-side entry retaining working face in northern Shaanxi mining area.

刘忠平,马亮,高亮,等. 超长沿空留巷挡矸支架随采随装技术研究[J]. 矿业安全与环保,2023,50(5):105-110.

LIU Zhongping,MA Liang,GAO Liang,et al. Study on technology of super-long gob-side entry retaining gangue support with mining and assembling[J]. Mining Safety & Environmental Protection,2023,50(5):105-110.