王国文, 闫鑫, 贺晓浪,等.母杜柴登煤矿超长工作面顶板砂岩水靶向疏放技术[J].河南理工大学学报（自然科学版）,2022,41(2):39-45.

WANG G W, YAN X, HE X L, et al. Targeting drainage technology of roof sandstone water in super-long working face of Muduchaideng coal mine[J].Journal of Henan Polytechnic University(Natural Science) ,2022,41(2):39-45.

母杜柴登煤矿超长工作面顶板砂岩水靶向疏放技术

王国文1,2, 闫鑫2,3, 贺晓浪2,3, 丁湘2,3, 肖乐乐4

1.鄂尔多斯市伊化矿业资源有限责任公司,内蒙古 鄂尔多斯 017318；2.中煤冲击地压与水害防治研究中心,内蒙古 鄂尔多斯 017000；3.中煤能源研究院有限责任公司,陕西 西安 710054；4.西安科技大学 地质与环境学院,陕西 西安 710054

摘要:针对鄂尔多斯盆地深部侏罗纪煤层普遍存在的顶板富水极不均匀、采后采场涌水量大、 疏放水工程量大等问题,分析短距离回转钻进群孔疏放技术和长距离定向钻进引流疏放技术的优缺点,根据矿井沉积地质特征,综合物探成果和已开采工作面疏放水效果,判定3-1煤层顶板直罗组含水层为疏放水设计的关键含水层。采用AHP层次分析法构建包含砂岩厚度、沉积环境影响指数、岩心采取率等指标的富水评价模型,对疏放水目标工作面的富水进行评价和分区。在此基础上,提出采用长距离定向钻进引流疏放和短距离回转钻进群孔疏放联合的顶板砂岩水靶向疏放技术,并在母杜柴登煤矿进行实践,结果表明,采用联合疏放,有效降低了工作面回采时的直接充水含水层水位,大范围疏放了工作面内的静储量水。对含水层富水极不均匀条件下的顶板砂岩水疏放技术进行的有益探索和工程实践,可为类似煤矿顶板砂岩水疏放治理提供参考。

关键词:砂岩水;定向钻进;群孔疏放;靶向疏放;母杜柴登煤矿

doi:10.16186/j.cnki.1673-9787.2020030058

基金项目:国家自然科学基金资助项目（41807190）

收稿日期:2020/03/16

修回日期:2020/10/13

出版日期:2022/03/15

Targeting drainage technology of roof sandstone water in super-long working face of Muduchaideng coal mine

WANGGuowen 1,2, YANXin 2,3, HEXiaolang 2,3, DINGXiang 2,3, XIAOLele 4

1.Ordos Yihua Mining and Resources Co. , Ltd. , Ordos 017318 , Innermongolia, China；2.China Coal Rock Burst & Water Hazard Control Center, Ordos 017000 , Innermongolia , China；3.China Coal Energy Research Institute Co. , Ltd. , Xi  ’ an 710054 , Shannxi, China；4.School of Geology and Environment, Xi ’ an University of Science and Technology, Xi  ’ an 710054 , Shannxi, China

Abstract: The deep Jurassic coalfield mines in Ordos basin are generally faced with some problems such as uneven water-rich distribution of roof,large amount of water falling in stope after mining,large amount of drainage works,and so on.The advantages and disadvantages of short-distance rotary drilling group hole drainage technology and long-distance directional drainage technology were analyzed.According to the mine sedimentary geological characteristics,based on the comprehensive geophysical exploration results and the drainage results of the mining face,it was considered that the aquifer of Zhiluo formation of 3-1 coal roof was the key aquifer for dewatering design.A water richness evaluation model including sandstone thickness,sedimentary environment impact index and core adoption rate was constructed by using AHP analytic hierarchy process,and the water richness of the drainage target face was evaluated.On this basis,the water targeting drainage technology of roof sandstone with the combination of long-distance directional drilling and short-distance rotary drilling group hole drainage is put forward and was put into practice in Muduchaideng coal mine.The results showed that the combined drainage method can effectively reduce the water level of the direct water-filled aquifer in the working face,and could drain the static reserves in the working face on a large scale.The beneficial exploration and engineering practice on the roof water drainage technology under the condition of extremely uneven water content of aquifer provided a reference for the treatment of roof water drainage in similar mines. 

Key words:sandstone water;directional drilling;group hole drainage;targeting drainage;Muduchaideng coal mine

 母杜柴登煤矿超长工作面顶板砂岩水靶向疏放技术_王国文.pdf