范尚崇, 杨宏民, 邱向雷,等.高抽巷合理层位的确定方法与应用[J].河南理工大学学报（自然科学版）,2022,41(2):26-31.

FAN S C, YANG H M, QIU X L,et al. Determination method and application of reasonable level in high pumping roadway[J].Journal of Henan Polytechnic University(Natural Science) ,2022,41(2):26-31.

高抽巷合理层位的确定方法与应用

范尚崇1, 杨宏民1,2, 邱向雷1, 尹海3

1.河南理工大学 安全科学与工程学院,河南 焦作 454000；2.煤矿灾害预防与抢险救灾教育部工程研究中心,河南 焦作 454000；3.中煤昔阳能源有限责任公司黄岩汇煤矿,山西 昔阳 045300

摘要:针对中煤昔阳能源有限责任公司黄岩汇煤矿15108工作面邻近煤层瓦斯涌出量大,造成该工作面回采期间上隅角瓦斯体积分数超限的问题,采用理论计算与UDEC数值模拟,得出各覆岩下沉量及竖“三带”发育范围,对不同层位下的高抽巷抽采效果进行现场实测与评价,结果表明：煤层上方岩层随着埋深变浅各覆岩下沉量也逐渐减小,沿竖直方向能反映出竖“三 带”的基本特征。竖“三带”理论计算与数值模拟结果相近,高抽巷实际布置层位与抽采效果验证了两个结果的可靠性,最终确定15108工作面裂隙带最大发育高度,为67.7 -70.4 m,高 抽巷合理层位应为50~70 m,此范围内高抽巷可将上隅角瓦斯体积分数控制在0.3%以下。

关键词:上隅角瓦斯;覆岩下沉量;竖三带;高抽巷层位

doi:10.16186/j.cnki.1673-9787.2020050077

基金项目:国家自然科学基金资助项目（51574017）；河南省高校科技创新团队支持计划项目（17IRTSTHN030）；教育部创新团队发 展支持计划项目（IRT-16R22）

收稿日期:2020/05/25

修回日期:2020/09/04

出版日期:2022/03/15

Determination method and application of reasonable level in high pumping roadway

FAN Shangchong 1, YANG Hongmin 1,2, QIU Xianglei1, YIN Hai 3

1.School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo  454000 , Henan, China；2.Engineering Research Center of the Ministry of Education for Coal Mine Disaster Prevention and Rescue and Disaster Relief, Jiaozuo  454000 , Henan, China；3.Huangyanhui Coal Mine, China Coal Xiyang Energy Co. , Ltd. ,Xiyang  045300 , Shanxi, China

Abstract: In view of the large gas outflow of the nearby layer of the working surface of Huangyanhui mine 15108,and its resulting in the over-limiting concentration of upper angle gas during the recovery,the sedimentation and vertical“three-belts”development range of each rock cover were obtained by theoretical calculation and UDEC numerical simulation,and the high-pumping roadway extraction effect under different layer conditions was measured and evaluated on the spot.The research showed that the subsidence of the upper rock layer of the coal seam with the depth of the burial and the shallowness of the cladding was also gradually reduced, and the basic characteristics of the vertical“three belts”could be reflected in the vertical direction.The vertical“three-belts”theoretical calculation and numerical simulation results were similar,the actual arrangement of the high pumping lane level and extraction effect verified the reliability of the two results,and finally it was determined that the maximum development height of the 15108 working surface fissure belt was about 67.7 ～70.4 m,the reasonable layer level of the high pumping lane should be between 50 ～ 70 m,in this range of high pumping lane could control the concentration of upper angle gas below 0.3%.

Key words:upper corner gas;overburden subsidence;vertical“ three belts”;high pumping roadway level

 高抽巷合理层位的确定方法与应用_范尚崇.pdf