基于富水性结构指数法的直罗组地层富水性评价
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摘要
为评价陕北侏罗纪煤田顶板直罗组砂岩含水层富水性,综合分析了砂岩裂隙含水层富水性的影响因素,通过筛选并确定了含水层等效厚度、砂泥比、岩心采取率、砂泥岩交互层数等4个独立评价指标,构建了基于富水性结构指数法的含水层富水性评价方法。以金鸡滩井田为例,采用富水性结构指数方法评价了直罗组砂岩裂隙含水层的富水性。研究表明,以孔隙度、渗透性及粒度构造的富水性结构指数消除了各个影响因素之间的关联性,能够反映砂岩含水层富水性;利用砂岩等效厚度,将不同粒度砂岩统一转化为粗砂岩作为评价砂岩含水层富水性的指标;结合抽水试验获得的水文地质参数与富水性分区图进行对比,以G值为0.15作为直罗组含水层富水弱区与富水较强区的分界值,富水性弱区主要分布在西南部和东北部,验证了富水性结构指数法为陕北侏罗纪煤田覆岩富水性评价提供了一种有效预测途径。
In order to evaluation the Zhiluo formation sandstone aquifer water abundance of Jurassic coalfield in northern Shanxi province,the water abundance influential factors were analyzed; Ultimately,the equivalent thickness of aquifer,sand-mudstone ratio,core recovery percentage and the number of sand-mudstone alternating layer were determined as four independent evaluation index,a method of sandstone aquifer water abundance evaluation based on watery structure index was built.This method was applied to the Jinjitan coalmine,its water abundance evaluation of sandstone fractured aquifer of Zhiluo formation was done,and the results showed that this method which constituted by he porosity,permeability and grain size of the sandstone aquifer can well eliminate the correlation among the influencing factors and reflect the Zhiluo formation sandstone fractured aquifer water abundance; Using the G value as the partition threshold,if G value is less than 0.15,the corresponding area is zoned as weak rich water area which are mainly distributed in the southwest and northeast if the Jinjitan coalfield,otherwise,is zoned as strong water abundant area.finally the water abundance partition map was made,it was compared with the obtained hydrogeological parameters of pumping test,the evaluation results is in line with reality,and the watery structure index evaluation method provides an effective way for the Zhiluo formation sandstone aquifer water abundance of Jurassic coalfield in northern Shanxi province.
In order to evaluation the Zhiluo formation sandstone aquifer water abundance of Jurassic coalfield in northern Shanxi province,the water abundance influential factors were analyzed; Ultimately,the equivalent thickness of aquifer,sand-mudstone ratio,core recovery percentage and the number of sand-mudstone alternating layer were determined as four independent evaluation index,a method of sandstone aquifer water abundance evaluation based on watery structure index was built.This method was applied to the Jinjitan coalmine,its water abundance evaluation of sandstone fractured aquifer of Zhiluo formation was done,and the results showed that this method which constituted by he porosity,permeability and grain size of the sandstone aquifer can well eliminate the correlation among the influencing factors and reflect the Zhiluo formation sandstone fractured aquifer water abundance; Using the G value as the partition threshold,if G value is less than 0.15,the corresponding area is zoned as weak rich water area which are mainly distributed in the southwest and northeast if the Jinjitan coalfield,otherwise,is zoned as strong water abundant area.finally the water abundance partition map was made,it was compared with the obtained hydrogeological parameters of pumping test,the evaluation results is in line with reality,and the watery structure index evaluation method provides an effective way for the Zhiluo formation sandstone aquifer water abundance of Jurassic coalfield in northern Shanxi province.
引文
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[12]邱梅,施龙青,滕超,等n.基于灰色关联–FDAHP法与物探成果相结合的奥灰富水性评价[J].岩石力学与工程学报,2016,35(S1):3203-3213.QIU Mei,SHI Longqing,TENG Chao,et al.Water-richness evaluation of ordovician limestone based on grey correlation analysis,FDAHP and geophysical exploration[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(S1):3203-3213.
[13]吕玉广.水文地质复杂矿井突水水源综合判别方法研究[J].煤炭科学技术,2017,45(10):155-161,175.LYU Yuguang.Study on comprehensive judgment method of mine inrush water source in complicated hydrogeological mine[J].Coal Science and Technology,2017,45(10):155-161,175.
[14]田增林,曹海东,黄选明.砂岩含水层富水性评价指标体系构建及优选研究[J].煤炭技术,2017,36(12):154-156.TIAN Zenglin,Cao Haidong,Huang Xuanming. Indexes System Construction and Optimization on Water Yield Evaluation in Sandstone Aquifer[J]. Coal Technology,2017,36(12):154-156.
[15]贾鹏宙.煤矿床含水层富水性定量评价方法研究[J].煤炭科学技术,2017,45(2):168-172.JIA Pengzhou.Study on quantitative evaluation method of water abundance for aquifer in coal deposits[J].Coal Science and Technology,2017,45(2):168-172.
[16]于师建.三软煤层上覆含水层富水性瞬变电磁法探测技术[J].煤炭科学技术,2015,43(1):104-107.YU Shijian.Transient electromagnetic method detecting technology of water-bearing occurence of aquifers in three-soft coal seam overlying rocks[J]. Coal Science and Technology,2015,43(1):104-107.
[17]武强,樊振丽,刘守强,等.基于GIS的信息融合型含水层富水性评价方法:富水性指数法[J].煤炭学报,2011,36(7):1124-1128.WU Qiang,FAN Zhenli,LIU Shouqiang,et al. Water-richness evaluation method of water-filled aquifer based on the principle of information fusion with GIS:water-richness index method[J].Journal of China Coal Society,2011,36(7):1124-1128.
[18]代革联,周英,杨韬,等.多因素复合分析法对直罗组砂岩富水性研究[J].煤炭科学技术,2016,44(7):186-190.DAI Gelian,ZHOU Ying,YANG Tao,et al.Study on multi-factor complex analysis method applied to watery of sandstone in Zhiluo Formation[J].Coal Science and Technology,2016,44(7):186-190.
[19]冯书顺.多源地学信息融合的煤层顶板含水层富水性评价[J].煤炭与化工,2016,39(6):9-11.FENG Shushun.Coal seam roof aquifer water-richness evaluation based on multiple source geology information fusion[J].Coal and Chemical Industry,2016,39(6):9-11.
[20]王洋,申建军.基于改进富水性指数法的灰岩含水层富水性评价[J].煤炭工程,2016,48(11):141-144.WANG Yang,SHEN Jianjun. Water richness evaluation of limestone aquifer based on improved water richness index method[J].Coal Engineering,2016,39(6):9-11.
[21]韩超,泮晓华,李国梁,等.基于GIS多源信息集成的含水层富水性模糊层次分析法[J].水文地质工程地质,2012,39(4):19-25.HAN Chao,PAN Xiaohua,LI Guoliang,et al. The Fuzzy analytic hierarchy process of water abundance of an aquifer based on GIS and multi-source information fusion techniques[J].Hydrogeology&Engineering Geology,2012,39(4):19-25.
[22]崔雪丽,李文平.综采顶板砂岩富水性多元信息预测评价[J].煤田地质与勘探,2015,43(1):43-47.CUI Xueli,LI Wenping. Forecasting and assessment of water abundance of sandstone roof by multivariate information[J]. Coal Geology&Exploration,2015,43(1):43-47.
[2]代革联,陈通,靖伟伟,等.兖州矿区3号煤层顶板砂岩含水层水文地质特征研究[J].西安科技大学学报,2008,28(4):668-673.DAI Gelian, CHEN Tong, JING Weiwei, et al. Aqueous characteristics of No.3 coal roof sandstone inYanzhou mining area[J].Journal of Xi’an University of Science and Technology,2008,28(4):668-673.
[3]范立民,向茂西,彭捷,等.西部生态脆弱矿区地下水对高强度采煤的响应[J].煤炭学报,2016,41(11):2672-2678.FAN Limin,XIANG Maoxi,PENG Jie,et al. Groundwater response to intensive mining in ecologically fragile area[J].Journal of China Coal Society,2016,41(11):2672-2678.
[4]范立民,马雄德,冀瑞君.西部生态脆弱矿区保水采煤研究与实践进展[J].煤炭学报,2015,40(8):1711-1717.FAN Limin,MA Xiongde,JI Ruijun. The progress of research and engineering practice of water-preserved coal mining in western ecoenvironment frangible area[J].Journal of China Coal Society,2015,40(8):1711-1717.
[5]鞠金峰,许家林,李全生等.我国水体下保水采煤技术研究进展[J].煤炭科学技术,2018,46(1):12-19.JU Jinfeng,XU Jialin,LI Quansheng,et al. Progress of water-preserved coal mining under water in China[J]. Coal Science and Technology,2018,46(1):12-19.
[6]范立民,仵拨云,向茂西,等.我国西部保水采煤区受保护烧变岩含水层研究[J].煤炭科学技术,2016,44(8):1-6.FAN Limin,WU Boyun,XIANG Maoxi,et al. Study on protective burnt rock aquifer in water preserved coal mining area of western China[J].Coal Science and Technology,2016,44(8):1-6.
[7]庄保辉,王亚伟.单位涌水量换算方法的讨论与应用[J].煤炭技术,2016,35(8):211-213.ZHUANG Baohui,WANG Yawei. Discussion and Application of Conversion about Specific Yield[J]. Coal Technology,2016,35(8):211-213.
[8]范立民,王双明,刘社虎等.榆神矿区矿井涌水量特征及影响因素[J].西安科技大学学报,2009,29(1):7-11,27.FAN Limin,WANG Shuangming,LIU Shehu,et al. Outcome characteristics and influencing factor of coal mining wastewater in Yushen mining area[J]. Journal of Xi’an University of Science and Technology,2009,29(1):7-11,27.
[9]蒋宗霖.综合物探技术在陷落柱富水性评价中的应用[J].煤炭科学技术,2015,43(11):139-142,151.JIANG Zonglin.Integrated geophysics technology applied to watery evaluation of sinkhole[J]. Coal Science and Technology,2015,43(11):139-142,151.
[10]张天模,李健,施龙青等.物探技术在矿井水防治中的应用研究[J].西安科技大学学报,2013,33(1):56-60,77.ZHANG Tianmo,LI Jian,SHI Longqing,et al.Application of geophysical exploration technique in the mine water prevention and control[J]. Journal of Xi’an University of Science and Technology,2013,33(1):56-60,77.
[11]秦旭卫.综合物探技术在松软砂岩含水层富水性探测中的应用[J].煤炭技术,2016,35(8):121-123.QIN Xuwei. Application of comprehensive geophysical method in water abundance prospecting of loosening sandstone aquifier[J].Coal Technology,2016,35(8):121-123.
[12]邱梅,施龙青,滕超,等n.基于灰色关联–FDAHP法与物探成果相结合的奥灰富水性评价[J].岩石力学与工程学报,2016,35(S1):3203-3213.QIU Mei,SHI Longqing,TENG Chao,et al.Water-richness evaluation of ordovician limestone based on grey correlation analysis,FDAHP and geophysical exploration[J].Chinese Journal of Rock Mechanics and Engineering,2016,35(S1):3203-3213.
[13]吕玉广.水文地质复杂矿井突水水源综合判别方法研究[J].煤炭科学技术,2017,45(10):155-161,175.LYU Yuguang.Study on comprehensive judgment method of mine inrush water source in complicated hydrogeological mine[J].Coal Science and Technology,2017,45(10):155-161,175.
[14]田增林,曹海东,黄选明.砂岩含水层富水性评价指标体系构建及优选研究[J].煤炭技术,2017,36(12):154-156.TIAN Zenglin,Cao Haidong,Huang Xuanming. Indexes System Construction and Optimization on Water Yield Evaluation in Sandstone Aquifer[J]. Coal Technology,2017,36(12):154-156.
[15]贾鹏宙.煤矿床含水层富水性定量评价方法研究[J].煤炭科学技术,2017,45(2):168-172.JIA Pengzhou.Study on quantitative evaluation method of water abundance for aquifer in coal deposits[J].Coal Science and Technology,2017,45(2):168-172.
[16]于师建.三软煤层上覆含水层富水性瞬变电磁法探测技术[J].煤炭科学技术,2015,43(1):104-107.YU Shijian.Transient electromagnetic method detecting technology of water-bearing occurence of aquifers in three-soft coal seam overlying rocks[J]. Coal Science and Technology,2015,43(1):104-107.
[17]武强,樊振丽,刘守强,等.基于GIS的信息融合型含水层富水性评价方法:富水性指数法[J].煤炭学报,2011,36(7):1124-1128.WU Qiang,FAN Zhenli,LIU Shouqiang,et al. Water-richness evaluation method of water-filled aquifer based on the principle of information fusion with GIS:water-richness index method[J].Journal of China Coal Society,2011,36(7):1124-1128.
[18]代革联,周英,杨韬,等.多因素复合分析法对直罗组砂岩富水性研究[J].煤炭科学技术,2016,44(7):186-190.DAI Gelian,ZHOU Ying,YANG Tao,et al.Study on multi-factor complex analysis method applied to watery of sandstone in Zhiluo Formation[J].Coal Science and Technology,2016,44(7):186-190.
[19]冯书顺.多源地学信息融合的煤层顶板含水层富水性评价[J].煤炭与化工,2016,39(6):9-11.FENG Shushun.Coal seam roof aquifer water-richness evaluation based on multiple source geology information fusion[J].Coal and Chemical Industry,2016,39(6):9-11.
[20]王洋,申建军.基于改进富水性指数法的灰岩含水层富水性评价[J].煤炭工程,2016,48(11):141-144.WANG Yang,SHEN Jianjun. Water richness evaluation of limestone aquifer based on improved water richness index method[J].Coal Engineering,2016,39(6):9-11.
[21]韩超,泮晓华,李国梁,等.基于GIS多源信息集成的含水层富水性模糊层次分析法[J].水文地质工程地质,2012,39(4):19-25.HAN Chao,PAN Xiaohua,LI Guoliang,et al. The Fuzzy analytic hierarchy process of water abundance of an aquifer based on GIS and multi-source information fusion techniques[J].Hydrogeology&Engineering Geology,2012,39(4):19-25.
[22]崔雪丽,李文平.综采顶板砂岩富水性多元信息预测评价[J].煤田地质与勘探,2015,43(1):43-47.CUI Xueli,LI Wenping. Forecasting and assessment of water abundance of sandstone roof by multivariate information[J]. Coal Geology&Exploration,2015,43(1):43-47.