基于分形理论的断层构造对千米深井瓦斯赋存规律的影响研究
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摘要
以新汶矿区千米深井潘西煤矿为例,研究了后六采区19#煤层断层空间分布特征,运用分形理论对断层构造进行了定量化研究。结果表明:潘西煤矿研究区域内,断层构造复杂,总体呈"W"形由北西-南东向展布,对瓦斯赋存具有明显影响。分形维数能够反映断层构造复杂程度,分形维数越大,断层构造越复杂,潘西煤矿断层分形维数多数在0.7～1.6之间。分形维数大的区域,瓦斯含量亦相对较大。
Taking Panxi Coal Mine, a kilometer deep mine in Xinwen Mining Area as an example, the spatial distribution characteristics of 19#coal seam fault in Houliu Mining Area are studied, and the fault structure is quantitatively studied by fractal theory. The results show that the fault structure is complex in the research area of Panxi Coal Mine, and the overall"W"shape is spread from the northwest to the southeast, which has obvious influence on gas occurrence. Fractal dimension can reflect the complexity of fault structure. The larger the fractal dimension is, the more complicated the fault structure is. The fractal dimension of Panxi Coal Mine is mostly between 0.7 and 1.6. In the areas with large fractal dimensions, the gas content is relatively large.This study has important practical application value for revealing the influence of faults on gas occurrence.
Taking Panxi Coal Mine, a kilometer deep mine in Xinwen Mining Area as an example, the spatial distribution characteristics of 19#coal seam fault in Houliu Mining Area are studied, and the fault structure is quantitatively studied by fractal theory. The results show that the fault structure is complex in the research area of Panxi Coal Mine, and the overall"W"shape is spread from the northwest to the southeast, which has obvious influence on gas occurrence. Fractal dimension can reflect the complexity of fault structure. The larger the fractal dimension is, the more complicated the fault structure is. The fractal dimension of Panxi Coal Mine is mostly between 0.7 and 1.6. In the areas with large fractal dimensions, the gas content is relatively large.This study has important practical application value for revealing the influence of faults on gas occurrence.
引文
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[13]汪宏志,孙林,胥翔,等.基于分形理论的芦岭煤矿8煤层顶板断裂构造复杂程度研究[J].中国煤炭地质,2012,24(6):22-25.
[14]杨高峰,卫金善,窦文武,等.长平井田断层发育复杂程度及其演化研究[J].能源与环保,2017,39(6):78-81.
[15]高永璋,张寿庭,孙社良,等.新疆塔什库尔干-莎车一带断裂体系的分形特征及找矿预测[J].现代地质,2011,25(1):101-107.
[16]梁俊杰,李格升,张尊华,等.球形火焰分形维数的计算方法[J].燃烧科学与技术,2016,22(1):26-32.
[2] Creedy D P. Geological controls on the formation and distribution of gas in British coal measure strata[J]. International Journal of Coal Geology, 1988, 10(1):1.
[3] Shepherd J, Rixon L K, Griffiths L. Outbursts and geological structures in coal mines:a review[J]. International Journal of Rock Mechanics and Mining Sciences&Geomechanics Abstracts, 1981, 18(4):267-283.
[4]陈闯,崔洪庆.地质因素对祁南矿瓦斯赋存的控制特征[J].煤矿安全,2015,46(11):27-30.
[5]潘怡.郭家河井田煤层气富集主控因素与富集区预测研究[D].西安:西安科技大学,2017:31-33.
[6]周世宁,林柏泉.煤层瓦斯赋存与流动理论[M].北京:煤炭工业出版社,1999:17-24.
[7]张子敏,张玉贵.瓦斯地质规律与瓦斯预测[M].北京:煤炭工业出版社,2005:55-90.
[8]季淮君,李增华,刘震,等.涡北煤矿地质构造对瓦斯涌出规律的影响[J].中国煤炭,2011,37(11):26-28.
[9]毛党龙,刘敏,武静.金竹山矿区地质构造特征及其对瓦斯分布的控制作用[J].煤矿安全,2017,48(8):151-154.
[10]朱华,姬翠翠.分形理论及其应用[M].北京:科学出版社,2011:12-18.
[11]谢和平.分形几何及其在岩土力学中的应用[J].岩土工程学报,1992,14(1):14-24.
[12]武昱东,琚宜文,侯泉林,等.断层分层信息维及其在深部煤炭开采地质条件预测中的应用[J].煤炭学报,2010,35(8):1323-1330.
[13]汪宏志,孙林,胥翔,等.基于分形理论的芦岭煤矿8煤层顶板断裂构造复杂程度研究[J].中国煤炭地质,2012,24(6):22-25.
[14]杨高峰,卫金善,窦文武,等.长平井田断层发育复杂程度及其演化研究[J].能源与环保,2017,39(6):78-81.
[15]高永璋,张寿庭,孙社良,等.新疆塔什库尔干-莎车一带断裂体系的分形特征及找矿预测[J].现代地质,2011,25(1):101-107.
[16]梁俊杰,李格升,张尊华,等.球形火焰分形维数的计算方法[J].燃烧科学与技术,2016,22(1):26-32.