Shanxi Coking Coal Shanxi Coal International Huoerxinhe Coal Industry Co.

针对霍尔辛赫矿井3803大采高工作面采用柔模混凝土沿空留巷技术,为减少工作面主关键层垮落对混凝土墙体的破坏,确保巷道稳定,超前工作面对主关键层进行预裂切顶卸压爆破、临时加强支护,为大采高沿空留巷提供有力的技术支持。

Aiming at the retaining roadway along goaf flexible formwork concrete technology adopted in the 3803 large mining height working face of Huoerxinhe Mine. In order to reduce the damage to the concrete wall caused by the collapse of the main key layer of the working face and ensure the stability of the roadway, the advance working face is conducted to presplitting, roof cutting, pressure relief blasting and temporary strengthening support the main key layer, providing strong technical support for the large mining height retaining roadway along goaf.

1 工程概况
2 切顶卸压技术方案
2.1 结构模型
2.2 切顶卸压高度计算
2.3 工艺实施
3 加强支护方案
3.1 超前支护
3.2 底部加固
3.3 滞后支护
4 效果分析
5 结语

郭壹贵.大采高综采工作面沿空留巷顶板管理技术应用研究[J].山东煤炭科技,2023,41(06):222-225.