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断层是诱发矿井突水事故的重要影响因素,新汶煤田受奥灰岩溶突水威胁严重,针对断层诱发突水问题,在系统总结新汶煤田矿井断层构造分布特征基础上,建立了断层对奥灰岩溶突水影响定量化分析体系。引入断层影响因子概念,对底板突水危险性进行了定量分析;采用非线性理论对煤矿地质构造发育特征进行定量化研究,揭示了矿井断层分维特征,提出了断层分维特征及其对突水影响危险性分区的原则及方法。采用断层影响因子等值线和断层分维等值线相互融合技术,得到新汶煤田协庄煤矿奥灰岩溶裂隙分布规律。根据不同单元岩溶的富水性,圈定出煤层突水危险区,对煤炭开采防治突水灾害具有指导意义。
The fault is an important factor to induce mine water inrush. Xinwen coalfield is seriously threatened by the limestone karst water inrush. According to the characteristics of the fault structure distribution in Xinwen coalfield, Quantitative analysis system influenced by limestone karst water. Introducing the concept of fault influencing factor, the risk of water inrush from the floor was quantitatively analyzed. The non-linear theory was used to quantitatively study the geological tectonic development characteristics of coal mines. The fractal features of faults in coal mines were revealed. Principles and methods of water impacting zoning. The distribution law of the ores of limestone karst fissures in Xiezhuang coal mine of Xinwen coalfield was obtained by using the technique of isoline of fault influence factor and contour fractal contour line fusion. According to the different units of karst water-rich, delineating the danger zone of coal seam water inrush, coal mining prevention and control of water inrush disaster has guiding significance.