Efficient treatment technology of incrementally open water gushing channel under dynamic water conditions

Authors

PU Zhiguo, China Coal Energy Research Institute Co. Ltd., Xi’an 710054, China; China Coal Rock Burst & Water Hazard Control Center, Ordos 017000, ChinaFollow
DING Xiang, China Coal Energy Research Institute Co. Ltd., Xi’an 710054, China; China Coal Rock Burst & Water Hazard Control Center, Ordos 017000, China
LI Zhe, China Coal Energy Research Institute Co. Ltd., Xi’an 710054, China; China Coal Rock Burst & Water Hazard Control Center, Ordos 017000, ChinaFollow
JI Zhuochen, China Coal Energy Research Institute Co. Ltd., Xi’an 710054, China; China Coal Rock Burst & Water Hazard Control Center, Ordos 017000, China
YAN Xin, China Coal Energy Research Institute Co. Ltd., Xi’an 710054, China; China Coal Rock Burst & Water Hazard Control Center, Ordos 017000, China
HE Xiaolang, China Coal Energy Research Institute Co. Ltd., Xi’an 710054, China; China Coal Rock Burst & Water Hazard Control Center, Ordos 017000, China
MA Jianguo, Shaanxi Shenyan Coal Co. Ltd., Yulin 719000, China

Abstract

In Yushen mining area of Shaanxi Province, a blasting expansion fissure on the eastern side of the Xiwan Open-pit Coal Mine communicates the water-bearing body of burnt rock outside the pit, and an incrementally open water gushing channel with a length greater than 65 m is formed. The water volume gushing from burnt rock stabilizes at about 400 m³/h and the flow velocity is as high as 0.36 m/s, resulting in a series of problems in ecology, environmental protection, economy and safety. To block the water gushing channel and solve the problem as soon as possible, a quick detection method was proposed for determining the location of the main channel of the side blast rupture gap, considering environmental protection, construction period, cost and construction conditions. In view of the extremely low aggregate retention rate of the conventional infusion scheme of the incrementally open water gushing channel under dynamic water conditions, a new type of aggregate filling technology is proposed. On basis of the methods, two boreholes connected to the main water gushing channel were successfully detected, and the channel location was discovered. For the channel treatment, an “aggregate blocking net” was set at the outer port of the gushing channel and in which the magnesium slag core and calcareous nodules were adopted to improve the retention rate of aggregates, and the rapid filling of the large channel was realized. After the rapid reinforcement of the double slurry, the water output volume is only 6.6 m³/h. The channel was successfully blocked in only six days. The results show that the blasting crack exploration method and the blocking scheme of incremental open water inflow channel are scientific and efficient. This case can provide a reference for the efficient management of water gushing channels under similar conditions.

Keywords

water gushing channel, efficient treatment, incremental open channel, hydrodynamic condition, “aggregate blocking net”, cut-off by grouting, Yushen Coalfield

DOI

10.12363/issn.1001-1986.21.09.0542

Recommended Citation

PU Zhiguo, DING Xiang, LI Zhe, et al. (2022) "Efficient treatment technology of incrementally open water gushing channel under dynamic water conditions," Coal Geology & Exploration: Vol. 50: Iss. 5, Article 10.
DOI: 10.12363/issn.1001-1986.21.09.0542
Available at: https://cge.researchcommons.org/journal/vol50/iss5/10

Reference

[1] 煤炭科学研究院北京研究所建井室注浆组. 动水注浆技术:注浆法及其在煤矿中的应用之六[J]. 煤炭科学技术,1975(1):52−55. Grouting Group of Construction Chamber,Beijing Research Institute of Coal Research Institute. Dynamic water grouting technology−grouting method and its application in coal mine No.6[J]. Coal Science and Technology,1975(1):52−55.

[2] 何思源. 开滦范各庄矿岩溶陷落柱特大突水灾害的治理[J]. 煤田地质与勘探,1986(2):35−42. HE Siyuan. Treatment of extraordinary water inrush disaster of karst collapse column in Fangezhuang mine of Kailuan[J]. Coal Geology & Exploration,1986(2):35−42.

[3] 李松营. 应用动水注浆技术封堵矿井特大突水[J]. 煤炭科学技术,2000,28(8):28−30. LI Songying. Application of dynamic water grouting technology to seal off extraordinarily large water inrush in mine[J]. Coal Science and Technology,2000,28(8):28−30.

[4] 南生辉,蒋勤明,郭晓山,等. 导水岩溶陷落柱堵水塞建造技术[J]. 煤田地质与勘探,2008,36(4):29−33. NAN Shenghui,JIANG Qinming,GUO Xiaoshan,et al. Construction technique of groundwater−preventing piston in Karst flow collapse column[J]. Coal Geology & Exploration,2008,36(4):29−33.

[5] 王铁记，关永强. 短距离小断面大流量动水巷道快速截流技术[C]//中国地质学会、中国煤炭学会煤田地质专业委员会暨中国煤炭工业劳动保护科学技术学会水害防治专业委员会学术年会论文汇编. 北京：中国地质学会、中国煤炭学会煤田地质专业委员会暨中国煤炭工业劳动保护科学技术学会水害防治专业委员会，2007：236–238.

[6] 刘人太,李术才,张庆松,等. 一种新型动水注浆材料的试验与应用研究[J]. 岩石力学与工程学报,2011,30(7):1454−1459. LIU Rentai,LI Shucai,ZHANG Qingsong,et al. Experiment and application research on a new type of dynamic water grouting material[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(7):1454−1459.

[7] 湛铠瑜,隋旺华,王文学. 裂隙动水注浆渗流压力与注浆堵水效果的相关分析[J]. 岩土力学,2012,33(9):2650−2655. ZHAN Kaiyu,SUI Wanghua,WANG Wenxue. Correlation analysis of seepage pressure and water plugging effect during grouting into a fracture with flowing water[J]. Rock and Soil Mechanics,2012,33(9):2650−2655.

[8] 李术才,韩伟伟,张庆松,等. 地下工程动水注浆速凝浆液黏度时变特性研究[J]. 岩石力学与工程学报,2013,32(1):1−7. LI Shucai,HAN Weiwei,ZHANG Qingsong,et al. Research on time–dependent behavior of viscosity of fast curing grouts in underground construction grouting[J]. Chinese Journal of Rock Mechanics and Engineering,2013,32(1):1−7.

[9] 姬中奎. 矿井大流量动水注浆细骨料截流技术[J]. 煤炭工程,2014,46(7):43−45. JI Zhongkui. Fine aggregate grouting closure technology of high flow running water in mine[J]. Coal Engineering,2014,46(7):43−45.

[10] 朱明诚. 动水大通道突水钻孔控制注浆高效封堵关键技术及装备[J]. 煤田地质与勘探,2015,43(4):55−58. ZHU Mingcheng. Key technology and equipment of borehole–controlled grouting for highly effective plugging large channel of water inrush[J]. Coal Geology & Exploration,2015,43(4):55−58.

[11] 朱明诚. 钻孔控制注浆技术在过水大通道封堵中的应用[J]. 中国煤炭地质,2015,27(5):46−49. ZHU Mingcheng. Application of controlled borehole grouting technology in large water channel plugging[J]. Coal Geology of China,2015,27(5):46−49.

[12] 杨志斌,董书宁. 动水大通道突水灾害治理关键技术[J]. 煤炭科学技术,2018,46(4):110−116. YANG Zhibin,DONG Shuning. Key technology of water inrush disaster control under hydrodynamic large channel condition[J]. Coal Science and Technology,2018,46(4):110−116.

[13] 董书宁,杨志斌,朱明诚,等. 过水巷道动水快速截流大型模拟实验系统研制[J]. 煤炭学报,2020,45(9):3226−3235. DONG Shuning,YANG Zhibin,ZHU Mingcheng,et al. Development of large–scale simulation experiment system for dynamic water rapid sealing in flowing water roadway[J]. Journal of China Coal Society,2020,45(9):3226−3235.

[14] 杨志斌,董书宁. 过水巷道动水快速截流机理研究[J]. 采矿与安全工程学报,2021,38(6):1134−1143. YANG Zhibin,DONG Shuning. Mechanism of rapid interception of flowing water in water–flowing roadways[J]. Journal of Mining & Safety Engineering,2021,38(6):1134−1143.

[15] 崔建平,蒲治国,丁湘,等. 露天煤矿烧变岩黏土基注浆帷幕建造技术[J]. 煤炭工程,2021,53(7):59−64. CUI Jianping,PU Zhiguo,DING Xiang,et al. Construction of clay−based grouting curtain in burnt rock of open−pit coal mine[J]. Coal Engineering,2021,53(7):59−64.

[16] 边俊城. 爆炸应力波在节理岩体中传播规律的数值模拟研究[D]. 西安：西安建筑科技大学，2018.

BIAN Juncheng. Numerical simulation of the propagation of stress wave in jointed rock mass[D]. Xi’an：Xi’an University of Architecture and Technology，2018.

[17] 冯海宾. 空气间隔装药在西湾露天煤矿爆破中的应用[J]. 内蒙古煤炭经济,2017(18):134−136. FENG Haibin. Application of air spacer charge in blasting in Xiwan open−pit coal mine[J]. Inner Mongolia Coal Economy,2017(18):134−136.

[18] 李洪涛,王志强,姚强,等. 石英云母片岩动力学特性实验及爆破裂纹扩展研究[J]. 岩石力学与工程学报,2015,34(10):2125−2141. LI Hongtao,WANG Zhiqiang,YAO Qiang,et al. Study of dynamic characteristics and blasting crack propagation of quartz mica schist[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(10):2125−2141.

[19] 庄新炉. 爆炸载荷作用下裂隙岩体的损伤特性研究[D]. 淮南：安徽理工大学，2005.

ZHUANG Xinlu. Research on damage characteristics of fractured rock mass under explosive load[D]. Huainan：Anhui University of Science and Technology，2005.

[20] 甘林堂. 淮南矿区A组煤底板灰岩水防治及潘二矿突水事故原因分析[J]. 煤矿安全,2018,49(7):171−174. GAN Lintang. Prevention of limestone water in coal floor of group A of Huainan mining area and causes analysis of water inrush accidents in Pan’er mine[J]. Safety in Coal Mines,2018,49(7):171−174.

[21] 赵庆彪,程建远,杜丙申,等. 东庞矿突水陷落柱综合探查技术[J]. 煤炭科学技术,2008,36(8):96−100. ZHAO Qingbiao,CHENG Jianyuan,DU Bingshen,et al. Comprehensive survey technology of water inrush sink hole in Dongpang mine[J]. Coal Science and Technology,2008,36(8):96−100.

[22] 刘建功,赵庆彪,白忠胜,等. 东庞矿陷落柱特大突水灾害快速治理[J]. 煤炭科学技术,2005,33(5):4−7. LIU Jiangong,ZHAO Qingbiao,BAI Zhongsheng,et al. Rapid holding and control for special large water inrush from sink hole in Dongpang mine[J]. Coal Science and Technology,2005,33(5):4−7.

[23] 牟林,董书宁. 截流巷道骨料堆积体中浆液运移规律与阻水机制[J]. 地下空间与工程学报,2020,16(6):1891−1900. MOU Lin,DONG Shuning. Migration rule and water blocking mechanism of cement slurry in aggregate accumulation of underground tunnel closure[J]. Chinese Journal of Underground Space and Engineering,2020,16(6):1891−1900.

[24] 李彩惠. 矿井特大突水巷道截流封堵技术[J]. 西安科技大学学报,2010,30(3):305−308. LI Caihui. Interception plugging technology for supergiant water inrush laneway in mine[J]. Journal of Xi’an University of Science and Technology,2010,30(3):305−308.

[25] 周健,崔自治,周康,等. 镁渣取代部分细骨料对混凝土抗压强度的作用效应研究[J]. 混凝土,2012(9):54−56. ZHOU Jian,CUI Zizhi,ZHOU Kang,et al. Study on the effect of magnesium slag to replace part of the fine aggregate on the com pressive strength of concrete[J]. Concrete,2012(9):54−56.

[26] 赵海晋. 利用镁渣制造水泥的研究和应用[D]. 西安：西安建筑科技大学，2007.

ZHAO Haijin. Research and application on using magnesium slag to prepare cement[D]. Xi’an：Xi’an University of Architecture and Technology，2007.

[27] 蒋勤明. 大埋深突水巷道“阻水段”骨料灌注技术[C]//中国煤炭学会钻探工程专业委员会. 中国煤炭学会钻探工程专业委员会2017年钻探工程学术研讨会论文集. 鄂尔多斯：中国煤炭学会钻探工程专业委员会钻探工程学术研讨会，2017：210–212.

[28] 王贵华,白胜民. 垂直钻孔骨料灌注工艺和堵孔处理[J]. 河北煤炭,2004(4):51−52. WANG Guihua,BAI Shengmin. Vertical drilling and aggregate pour technology and treatment method of stopping up the hole[J]. Hebei Coal,2004(4):51−52.