无充填带沿空留巷支护技术研究  

Study on no-pack gob-side entryretaining of continuous coordinated mining technology

作　　者：程玉波 

机构地区：[1]山西晋神沙坪煤业有限公司,山西忻州034000

出　　处：《江西煤炭科技》2017年第4期72-74,77,共4页Jiangxi Coal Science & Technology

摘　　要：为研究合理的连续开采接替方式及巷道支护技术,提高煤炭资源回收率。以章村煤矿4224采区为工程对象,利用层次分析法确定出单巷沿空留巷连续开采方式为最佳的连续开采方式,在对无充填沿空留巷支护机理分析及实际地质条件的基础上,确定利用单体支柱配合铰接顶梁加强采空区侧巷道顶板支护的方式,使采空区侧矸石形成"矸石垛"支撑沿空留巷顶板,通过巷道矿压观测数据分析:沿空留巷两帮及顶底板的最大移近量分别为600 mm、800 mm,有效的控制了巷道变形,满足留巷的要求。In order to study the reasonable relay pattern and the roadway support of continuous mining and increase the coal resources recovery rate,the author determines the best continuous mining pattern with single lane entry retaining by the AHP,in which the single prop and the crossing articulated beam support method are applied to support the roof by forming waste rock heaps with the coal gangue in the goaf flank on the basis of supporting mechanism of non-rock pack gob-side entry retaining and geological conditions.The mine pressure observation results show that the roadway deformation has been effectively controlled with the max deformation value of floor of 800 mm and the roof of 600 mm,

关 键 词：沿空留巷 连续开采 无充填带 二次支护 矿压观测 

分 类 号：TD355[矿业工程—矿井建设]