赵官井田10煤层底板突水危险性评价

发布时间：2018-07-12 10:43

本文选题：煤层底板突水 + 危险性评价　；参考：《煤田地质与勘探》2015年03期

【摘要】：从地质构造、含水层、隔水层、开采条件等方面详细分析了赵官井田10煤层底板突水的影响因素,确定了断层强度指数、褶皱分维值、"底板充水含水层组"水压、"底板充水含水层组"富水性、奥灰富水性、隔水层厚度、泥岩比率、底板破坏深度8个主控因素作为10煤层底板突水危险性评价的决策指标,并建立了各主控因素专题图;运用层次分析法(AHP)确定了各主控因素的权重系数,建立了基于"脆弱性指数法"的底板突水危险性评价模型,对10煤层底板突水危险性进行了定量评价,结果表明:在井田的南部煤层露头处脆弱性指数小,突水可能性较小;在井田的北部,特别是在井田东北部,脆弱性指数大,突水危险性较大。
[Abstract]:From the aspects of geological structure, aquifers, aquifers, mining conditions and so on, the influence factors of water inrush in the floor of the 10 coal seam in Zhao Guan well field are analyzed in detail, and the strength index of the fault, the fractal dimension of the fold, the water pressure of the water bearing aquifer of the floor, the water rich, the rich water, the thickness of the aquifer, the ratio of the mudstone and the depth of the failure of the bottom of the floor are 8. As a decision index of the risk assessment of water inrush in 10 coal seam floor, the main control factors have been set up, and the thematic map of the main control factors is set up. The weight coefficient of the main control factors is determined by the analytic hierarchy process (AHP). The risk assessment model of water inrush from the floor based on the "vulnerability index method" is established, and the risk of water inrush from the floor of the 10 coal seam is quantitatively evaluated. The results show that the vulnerability index of the outcrop in the south of the minefield is small and the possibility of water inrush is small. In the northern part of the well field, especially in the northeast of the well field, the vulnerability index is large and the water inrush is more dangerous.
【作者单位】：山东科技大学地质科学与工程学院;山东省沉积成矿作用与沉积矿产重点实验室;山东新矿赵官能源有限公司;
【基金】：教育部高等学校博士学科点专项科研基金(20133718110004) 青岛经济技术开发区重点科技发展计划项目(2013-1-62) 山东省自然科学基金重点项目(ZR2011EEZ002) 山东科技大学科研创新团队支持计划资助(2012KYTD101)
【分类号】：TD745

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