极复杂水文地质条件下矿井堵源截流技术应用研究
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摘要
平禹一矿水文地质类型为极复杂型,历史上多次发生灰岩承压水突水淹井和淹采区事故,矿井主采二1煤层、二3煤层,当前矿井总涌水量为2 000 m~3/h。中央泵房排水能力3 300 m~3/h,五采区中央泵房排水能力~3 200 m~3/h,中央泵房及五采区中央泵房均采用独立系统,井下水可分别直排地面。平禹一矿岩溶水补给量较大,疏水降压存在着排水量大、降压目标难以实现的困难,经研究论证,通过采取地面注浆和井下注浆的堵源截流技术,切断岩溶水进入矿井导水通道,可以完全或部分消除岩溶水对二1煤层开采的威胁。经过Ⅰ期(2009—2010年)和Ⅱ期(2013—2014年)2次堵源截流工程施工,矿井涌水量显著减少,特别是Ⅱ期工程实施后,堵水效果明显。通过堵源截流技术在平禹一矿的应用,封堵了充水通道,减少了矿井排水量,降低了矿井生产成本,有效保护了地下水资源,同时保证了矿井带压开采的安全性,具有明显的经济和社会效益。
The hydrogeological condition of Pingyu No. 1 Mine is very complex,and there have been many accidents of water inrush and flooding in limestone confined water in history. Ⅱ1,Ⅱ3 coal seams are the main coal seam being mined,the current mine total yield is2 000 m~3/h. The drainage capacity of the central pump room is 3 300 m~3/h,and the drainage capacity of the central pump room in the five mining areas is 3 200 m~3/h. The central pumping station and the central pump room of the five mining area all adopt an independent system,and the underground water can be directly discharged into the ground. The amount of karst water recharge in Pingyu No. 1 Mine is large,the drainage volume of drainage is large and the target of reducing pressure is difficult to achieve. Through the study and demonstration,the threat of karst water to Ⅱ1 coal seam mining can be completely or partially eliminated by cutting the karst water into the mine guide channel through the technology of ground grouting and downhole grouting. With the construction of closure work and water source blocking engineering in Ⅰ period( 2009—2010) and Ⅱ period( 2013—2014),mine water inflow has been significantly reduced,especially after the implementation of Ⅱ period engineering,water plugging effect is obvious. According to the closure work and water source blocking engineering applied in Pingyu No. 1 Mine,the water filling channel is blocked,the drainage capacity of the mine is reduced,and the production cost of the mine is reduced,and the safety of mine belt pressure mining has been guaranteed,which has obvious economic and social benefits.
The hydrogeological condition of Pingyu No. 1 Mine is very complex,and there have been many accidents of water inrush and flooding in limestone confined water in history. Ⅱ1,Ⅱ3 coal seams are the main coal seam being mined,the current mine total yield is2 000 m~3/h. The drainage capacity of the central pump room is 3 300 m~3/h,and the drainage capacity of the central pump room in the five mining areas is 3 200 m~3/h. The central pumping station and the central pump room of the five mining area all adopt an independent system,and the underground water can be directly discharged into the ground. The amount of karst water recharge in Pingyu No. 1 Mine is large,the drainage volume of drainage is large and the target of reducing pressure is difficult to achieve. Through the study and demonstration,the threat of karst water to Ⅱ1 coal seam mining can be completely or partially eliminated by cutting the karst water into the mine guide channel through the technology of ground grouting and downhole grouting. With the construction of closure work and water source blocking engineering in Ⅰ period( 2009—2010) and Ⅱ period( 2013—2014),mine water inflow has been significantly reduced,especially after the implementation of Ⅱ period engineering,water plugging effect is obvious. According to the closure work and water source blocking engineering applied in Pingyu No. 1 Mine,the water filling channel is blocked,the drainage capacity of the mine is reduced,and the production cost of the mine is reduced,and the safety of mine belt pressure mining has been guaranteed,which has obvious economic and social benefits.
引文
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[2]崔峰,朱兴平,曹建涛,等.水压致裂的尺度交应模拟分析[J].煤矿安全,2015,46(8):156-159.Cui Feng,Zhu Xingping,Cao Jiantao,et al.Scale intersection of hydraulic fracturing should be simulated[J].Safety in Coal Mines,2015,46(8):156-159.
[3]范天吉.煤矿防治水综合技术手册[M].长春:吉林音像出版社,2003.
[4]梁铁山,杨建国.中国平煤神马集团煤矿灰岩水区域治理“2012—2015”规划[M].徐州:中国矿业大学出版社,2012.
[5]河南省许平煤业有限公司.煤矿水害防治“2016—2020”规划[R].平顶山:河南省许平煤业有限公司,2016.
[6]武强.煤矿防治水册[M].北京:煤炭工业出版社,2013.
[7]马士亮,孙家利.煤层底板双含水层突水防治技术研究与应用[M].徐州:中国矿业大学出版社,2014.
[8]中国煤炭工业协会.煤矿水害防治现状与对策[R].平顶山:中国平煤神马集团,2014.
[9]吴春野,殷志祥,唐治.煤层水压致残裂后煤岩应力解析[J].煤田地质与勘探,2016,44(4):114-117.Wu Chunye,Yin Zhixiang,Tang Zhi.Stress analysis of coal rock after coal seam water pressure[J].Coal Geology&Exploration,2016,44(4):114-117.
[10]牟林.水质动态曲线预测在突水水源判别中的应用[J].煤田地质与勘探,2016,44(3):70-74.Mou Lin.The application of the dynamic curve of the water quality to the identification of water breakthrough water[J].Coal Geology&Exploration,2016,44(3):70-74.
[11]左文喆,王斌海,程紫华.含水层性质解译分析原理[J].水文地质工程地质,2016,43(5):17-22.Zuo Wenzhe,Wang Binhai,Cheng Zihua.Interpretation and analysis of aquifer properties[J].Hydrogeological Engineering Geology,2016,43(5):17-22.
[12]边凯,杨志斌.煤层底板承压水导升带影响因素正交模拟实验[J].煤田地质与勘探,2016,44(1):74-78.Bian Kai,Yang Zhibin.Influence factors of the influence factors on the influence factors of pressure water in the bottom plate of the coal bed[J].Coal Geology&Exploration,2016,44(1):74-78.
[13]王炳文,张磊,赵军,等.开采过程中矿井涌水量动态预测研究[J].煤炭工程,2014,46(10):188-191.Wang Bingwen,Zhang Lei,Zhao Jun,et al.Dynamic prediction of mine inflow during mining[J].Coal Engineering,2014,46(10):188-191.
[14]周朝军.岩巷掘进过断层防治水技术[J].煤炭工程,2015,47(4):54-56.Zhou Zhaojun.A fault prevention and control water technology[J].Coal Engineering,2015,47(4):54-56.
[15]李先贵,李凯,采掘工作面安全水压计算方法探讨[J].煤田地质与勘探,2014,42(1):61-63.Li Xiangui,Li Kai.Calculation method of safe water pressure in mining face[J].Coal Geology&Exploration,2014,42(1):61-63.
[16]尹尚先,张祥维,徐慧,等.“大井法”中渗透系数及含水层厚度的优化[J].煤田地质与勘探,2015,43(5):53-56.Yin Shangxian,Zhang Xiangwei,Xu Hui,et al.Optimization of permeability coefficient and aquifer thickness in"big well method"[J].Coal Geology&Exploration,2015,43(5):53-56.
[17]刘满才,许光泉,刘丽红,等.示踪试验在探查灰岩含水层突水通道中应用[J].煤田地质与勘探,2014,42(4):50-54.Liu Mancai,Xu Guangquan,Liu Lihong,et al.Application of the tracer test in the exploration of water breakthrough channels in limestone aquifers[J].Coal Geology&Exploration,2014,42(4):50-54.
[18]吴曼颖,杨亮,刘卫国.水位动态变化下水体驳岸渗流场及稳定性研究[J].煤田地质与勘探,2015,43(6):54-59.Wu Manying,Yang Liang,Liu Weiguo.Research on the seepage field and stability of the water body under the dynamic change of water level[J].Coal Geology&Exploration,2015,43(6):54-59.
[19]许江涛.张村矿防治水研究[J].山东工业技术,2014,32(21):98-101.Xu Jiangtao.Research on water control of Zhangcun Mine[J].Shandong Industrial Technology,2014,32(21):98-101.
[20]黄存捍,文广超,黄俊杰,等.张村矿断层突水特征分析研究[J].煤炭工程,2013,45(6):88-91.Huang Cunhan,Wen Guangchao,Huang Junjie,et al.Analysis on the characteristics of the fault of the fault in Zhangcun Mine[J].Coal Engineering,2013,45(6):88-91.