综放工作面沿空留巷采空区侧围岩控制技术

Surrounding rock control technology in gob side of gob-side entry retaining on fully-mechanized caving face

对焦作矿区某矿1604综放工作面沿空留巷段采空区侧围岩进行控制,通过现场调研、实践探索对沿空留巷段采空区围岩控制进行了实践应用,形成了“切(超前预裂切缝)、补(顶板补强支护)、护(巷帮挡矸防护)、支(滞后临时支护)”为核心的沿空留巷工艺,并在现场得到了验证,取得较好的现场效果。

The surrounding rock of gob side of 1604 fully-mechanized top coal caving face in Jiaozuo mining area was controlled,through field investigation and practical exploration,the surrounding rock control of gob side of gob-side entry retaining was applied in practice,forming gob-side-retaining technology with the core of"cutting(pre-splitting and cutting seam in advance),filling(roof reinforcement and supporting),protecting(side retaining gangue protection)and supporting(temporary supporting lagging)",and it has been verified in the field and achieved good results.