西部矿区现代煤炭开采对地下水赋存环境的影响
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摘要
为有效保护和开发我国西部生态脆弱区地下水资源,针对现代煤炭开采对覆岩结构及地下水赋存环境的影响,以神东矿区超大工作面综采为例,应用现代高精度地球物理探测与分析方法,建立了以高精度四维地震多属性数据为核心的多属性数据体,描述了采前、采中、采后至稳定状态下的采动煤层覆岩变化过程,提出了采动煤层的覆岩具有开放的多层渗流结构和层状自修复趋势,为西部地区现代煤炭开采技术条件下地下水资源保护提供了理论依据。
In order to effectively protect and develop the underground water resources in the ecological frail zone of West China Area,according to the modern coal mining affected to the overburden strata structure and the underground water deposit environment,taking the super large fully mechanized coal mining face in Shendong Mining Area as an example,a modern high precision geophysical detection and analysis method was applied to establish a multi attribute data volume with high precision 4D seismic multi attribute data as a core.The paper represented the overburden strata variation process of the seam mining under the conditions before the mining operation,in the middle period of the mining face,at the mining terminal period and the strata stabilized period.The paper pointed out that overburden strata above the seam mining would have opened multi strata seepage structure and layered self recovered tendency,which could provide the theoretical basis to the underground water resources protection under the modern coal mining technology in West China Area.
In order to effectively protect and develop the underground water resources in the ecological frail zone of West China Area,according to the modern coal mining affected to the overburden strata structure and the underground water deposit environment,taking the super large fully mechanized coal mining face in Shendong Mining Area as an example,a modern high precision geophysical detection and analysis method was applied to establish a multi attribute data volume with high precision 4D seismic multi attribute data as a core.The paper represented the overburden strata variation process of the seam mining under the conditions before the mining operation,in the middle period of the mining face,at the mining terminal period and the strata stabilized period.The paper pointed out that overburden strata above the seam mining would have opened multi strata seepage structure and layered self recovered tendency,which could provide the theoretical basis to the underground water resources protection under the modern coal mining technology in West China Area.
引文
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[10]周志芳.裂隙介质水动力学原理[M].北京:高等教育出版社,2007.
[2]缪协兴.干旱半干旱矿区保水采煤方法与实践[M].徐州:中国矿业大学出版社,2010.
[3]王双明,黄庆享,范立民,等.生态脆弱区煤炭开发与生态水位保护[M].北京:科学出版社,2010.
[4]神华集团有限责任公司.特大型矿区群资源与环境协调开发技术[R].北京:神华集团有限责任公司,2009.
[5]张爱敏.采区高分辨率三维地震勘探[M].徐州:中国矿业大学出版社,1997.
[6]刘洋,魏修成.三维转换波地震资料处理方法[J].天然气工业,2006,26(12):72-74.
[7]贾义蓉,贺振华,石兰亭,等.变速三维地震速度场的构建与应用[J].物探化探计算技术,2011,33(3):243-247.
[8]底青云,王妙月.煤层上覆地层含水不均匀性电法探测的可能性[J].地球物理学进展,2003,18(4):707-710.
[9]彭汉桥,姚平.高密度电法与多波映象法在覆盖型岩溶勘察中的应用[J].湖南地质,2001(4):295-298.
[10]周志芳.裂隙介质水动力学原理[M].北京:高等教育出版社,2007.
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