智能化综采工作面切顶卸压沿空留巷技术研究  

Top Cutting and Pressure Relief Technology for Gob-side Entry Retaining in Intelligent Fully Mechanized Mining Face

作　　者：张丁丁 ZHANG Dingding(Shanxi Baoli Hesheng Coal Industry Co.,Ltd.,Jinzhong 031300,Shanxi,China)

机构地区：[1]山西保利合盛煤业有限公司,山西晋中031300

出　　处：《能源与节能》2025年第3期182-184,266,共4页Energy and Energy Conservation

摘　　要：针对合盛煤矿2104进风顺槽围岩变形量大问题,通过理论研究及模拟实验分析了顶板岩层运移规律及来压步距情况,得到了来压步距长、来压载荷大是造成沿空巷道围岩变形量大的主要因素。同时,提出采用“切顶卸压+补强支护”的方案控制巷道围岩变形,现场施工后巷道平均顶板下沉量和两帮移近量分别为51.2、50.7mm,能够保证巷道的安全使用。In response to the problem of large deformation of the surrounding rock in the 2104 air intake gateway of Hesheng Coal Mine,theoretical research and simulation experiments were conducted to analyze the movement law of the roof rock layer and the situation of the weighting step.It was found that long pressure step distance and large pressure load were the main factors causing large deformation of the surrounding rock in the goaf roadway.At the same time,a scheme of"top cutting and pressure relief+reinforcing support"was proposed to control the deformation of the surrounding rock of the roadway.After on-site construction,the average subsidence of the roadway roof and the movement of the two sides were 51.2 mm and 50.7 mm,respectively,which can ensure the safe use of the roadway.

关 键 词：沿空留巷 切顶卸压 补强支护 来压步距 

分 类 号：TD353[矿业工程—矿井建设]