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Characteristics of faults in the Liangzhuang mining area and their control on karst development in Ordovician limestones
Carbonates and Evaporites ( IF 1.1 ) Pub Date : 2020-10-24 , DOI: 10.1007/s13146-020-00656-8
Xingyue Qu , Longqing Shi , Weifu Gao , Mei Qiu

On the basis of the analysis of fault distribution characteristics in the Liangzhuang minefield, the site, channel, site distribution, and probability of karst water inrush from the Ordovician limestone affected by fault type, fault drop and fault dip is expounded. First, authors introduce methods of fault influencing factors and fault fractal dimension by synthesizing these faultage elements mentioned above. Next, the quantitative study of fault development characteristics in the Liangzhuang minefield is carried out using nonlinear theory, which reveals the intrinsic relationship between fault and karst fissure developing in the Ordovician limestone. Ultimately, through a combination of microslice identification and macrogeophysical analysis, the horizontal and vertical distribution regularities of Ordovician limestone karst fissures in the Liangzhuang minefield are studied, that is, the horizontal distribution shows discontinuity, and the vertical distribution shows relative continuity from the top interface of Ordovician limestone down the depth from 10 m to 40 m. This research can play an important guiding role in predicting water inrush from the Ordovician limestone karst during mining deep coal seam.

中文翻译:

梁庄矿区断层特征及其对奥陶系灰岩岩溶发育的控制

在分析梁庄矿区断层分布特征的基础上,阐述了受断层类型、断层落差和断层倾角影响的奥陶系灰岩岩溶突水的位置、通道、位置分布及发生概率。首先,作者通过综合上述断层要素,介绍了断层影响因素和断层分形维数的方法。其次,利用非线性理论对梁庄矿区断层发育特征进行定量研究,揭示了奥陶系灰岩断层与岩溶裂隙发育的内在联系。最终,通过微观切片识别和宏观地球物理分析相结合,研究了梁庄矿区奥陶系灰岩岩溶裂隙的横向和纵向分布规律,即横向分布呈现不连续性,纵向分布从奥陶系灰岩顶界面向下10 m至40 m深度呈现相对连续性。 . 该研究对奥陶系灰岩岩溶深部开采过程中的突水预测具有重要的指导作用。
更新日期:2020-10-24
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