深部矿井大型边界断层导水性试验研究

发布时间：2018-06-04 01:38

本文选题：大型断层 + 导水性　；参考：《矿业研究与开发》2017年10期

【摘要】：以城郊煤矿F_(20)断层为例,通过放水试验过程中太灰含水层连通性和补给来源分析,结合太灰含水层水化学特征及其时空变化规律,研究了深部矿井大型边界断层的导水性。研究结果表明,城郊煤矿F_(20)断层附近太灰含水层导水性良好,且能够得到有效且快速的补给,补给来源为奥灰含水层,补给通道为F_(20)断层。太灰水在空间上表现为随着与F_(20)断层距离的减小,矿化度和Na~++K~+含量均降低,Ca~(2+)含量增加;在时间上表现为随着涌水时间的延长,水样矿化度和Na~++K~+含量降低,而Ca~(2+)+Mg~(2+)含量增加;水化学时空变化特征也表明奥灰水通过F_(20)断层补给太灰水。
[Abstract]:Based on the analysis of the connectivity and recharge source of the Tai-ash aquifer during the water discharge test, the hydraulic conductivity of the large-scale boundary fault in deep mine is studied by taking the FJ _ (20) fault in the suburb coal mine as an example, combining with the chemical characteristics of the Tai-ash aquifer and its temporal and spatial variation law. The results show that the water conductivity of the aquifer near the fault is good, and it can be recharged efficiently and quickly. The recharge source is the Ordovician aquifer and the recharge channel is the fault. In space, the salinity and Na ~ K ~ content of too ash water decrease with the decrease of fault distance, and the salinity and Na ~ K ~ (2) content decrease with the increase of water gushing time, and the salinity and Na ~ K ~ content of water sample decrease with the increase of water gushing time, and the content of Na ~ (2 ~ K ~ (2) decreases with the increase of water gushing time. The temporal and spatial variation characteristics of hydrochemistry also indicate that the Ordovician ash water recharges too much ash water through the fault.
【作者单位】：河南能源化工集团永煤公司;安徽大学资源与环境工程学院;
【基金】：安徽省自然科学基金(1408085QD70) 安徽省教育厅重点项目(KJ2014A018) 安徽省国土资源科技项目(2013-K-07)
【分类号】：TD745.2

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