榆树坡煤矿5^(#)煤首采工作面两带发育高度研究  

Study on Development Height of Two Belts in No.5 Coal Head Mining Face of Yushupo Coal Mine

作　　者：屈少波 马仪鹏 郭国强 周杨 QU Shaobo;MA Yipeng;GUO Guoqiang;ZHOU Yang(School of Mines,China University of Mining and Technology,Xuzhou 221116,China;Shanxi Ningwu Yushupo Coal Industry Co.,Ltd.,Ningwu 036700,China;CCTEG Xi'an Research Institute(Group)Co.,Ltd.,Xi'an 710054,China;Shaanxi Key Laboratory of Coalmine Water Hazard Control,Xi'an 710077,China)

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]山西宁武榆树坡煤业有限公司,山西宁武036700 [3]中煤科工西安研究院(集团)有限公司,西安710054 [4]陕西省煤矿水害防治技术重点实验室,西安710077

出　　处：《煤炭技术》2024年第6期114-119,共6页Coal Technology

摘　　要：煤矿开采会造成覆岩的破坏和变形,对煤矿安全生产构成严重威胁。基于晋北宁武煤田巨厚煤层综放开采条件下两带发育高度计算公式误差大、裂采比经验值缺失的情况,采用钻孔冲洗液消耗量分析、孔内窥视和联合微震的综合手段对榆树坡煤矿5^(#)煤首采工作面两带发育高度进行了探查,冲洗液消耗量分析表明两带发育高度最大值为205 m,裂采比为18.64;微震监测得出回采期间顶板裂隙发育高度216~219 m,裂采比19.64~19.91,此结论可为宁武煤田及周边矿区相似条件下的顶板防治水工作提供理论依据。Coal mining will cause the destruction and deformation of overburden,which poses a serious threat to the safety of coal mine production.Based on the large error of the calculation formula of the development height of the two belts under the condition of fully mechanized caving of the huge thick coal seam in Ningwu coal field,Northern Shanxi Province,the development height of the two belts on the first mining face of No.5 coal in Yushupo coal mine is explored by means of the analysis of the consumption of drilling washing fluid,the peeping through the hole and the combined microseismic method.The analysis of flushing fluid consumption shows that the maximum development height of the two zones is 205 m and the fracture production ratio is 18.64.The results of microseismic monitoring show that the height of roof fissure development during mining is 216-219 m,and the fissure ratio is 19.64-19.91.This conclusion can provide a theoretical basis for roof water control work under similar conditions in Ningwu coalfield and surrounding mining areas.

关 键 词：两带高度 钻孔冲洗液 钻孔窥视 联合微震 榆树坡煤矿 

分 类 号：TD745[矿业工程—矿井通风与安全]