南山煤矿近距离煤层群上行开采可行性研究  

Feasibility study on upward mining in coal seam group with short distance in Nanshan Mine

作　　者：尤亚 You Ya(Shanxi Huarun Liansheng Energy Investment Co.,Ltd.,Lvliang,Shanxi 033000,China)

机构地区：[1]山西华润联盛能源投资有限公司,山西省吕梁市033000

出　　处：《中国煤炭》2018年第9期58-63,共6页China Coal

摘　　要：以南山煤矿地质与开采技术条件为工程背景,基于比值判别法和"三带"判别法,结合UDEC数值模拟方法,分析了南山煤矿6#、10#煤层联合开采对上覆3#、5#煤层结构的影响。结果表明,6#、10#煤层联合开采对3#、5#煤层的采动影响倍数分别为12.4~16.2、7.6~10.2;覆岩中L1石灰岩、L5石灰岩、K2石灰岩与K3粗砂岩有效控制了6#、10#煤层采动影响,抑制了裂隙发育;3#、5#煤层均位于6#、10#煤层采动裂隙带上方,结构连续性好,可直接进行上行开采。Taking the geological conditions and mining techniques of Nanshan Mines as the engineering background,which based on the ratio discriminatory method and ＂three zones＂ criterion method,and combined with UDEC numerical simulation method,the influence on the overlying strata and the structure of No.3 and No.5 coal seams after exploiting No.6 and No.10 coal seams in Nanshan Mine was analyzed.The results showed that the mining-induced influenced coefficients of No.3 and No.5 coal seams after exploiting No.6 and No.10 coal seams were 12.4-16.2 and 7.6-10.2;the L1 limestone,L5 limestone,K2 limestone and K3 gritstone effectively control the impact of mining activities and the development of roof fissures;No.3 and No.5 coal seams were located above the mining fissure zone of No.6 and No.10 coal seams,and had good structure continuity,which could be directly used for upward mining.

关 键 词：近距离煤层群 上行开采 比值判别法 “三带”判别法 

分 类 号：TD326[矿业工程—矿井建设]