煤层低振幅断层扰动主要参数分析及位移面空间图像

A. Merzlikin, D. Chepiga, I. Yefremov
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摘要

目的。对煤层低幅值不连续扰动的主要参数进行统计分析,恢复分离混合面空间图像。方法。根据煤矿企业首席地质学家现场日记中直接获得的煤层小尺度扰动数据的统计抽样结果,对煤层的间断扰动按类型、角度、倾角和幅度进行了分类。将各层间距离较近的记录断层进行对比,可以再现断层的空间位置,建立断层的位移面。结果。统计数据处理表明,绝大多数断层为正断层,断层倾角在55 ~ 75º之间,而几乎一半的断层断层的倾角方位角在0 ~ 100º之间。从扰动幅度的分布可以看出,绝大多数构造不连续面的扰动幅度指标不超过2米,根据清除作业跨越不连续面的可能性条件,这些不连续面的通过时,会有联合钻机对侧岩的下切,从而降低了扰动率,增加了设备的磨损。创意。对比距离较近的地层中记录的断层,发现断层在不同层位上的主要参数差异很大,由于断层的空间排列和析取混合器的表面具有非常复杂的形状,无法通过简单的层间几何转移来预测断层的位置。实用价值。研究结果表明,构造断层最常见的振幅在0 ~ 2 m范围内,同一断层的参数在不同的层位上可能发生变化,断层混合带的表面是一个复杂的几何形状,这使得断层线从上到下的简单转移是不可能的,但需要使用更有效的断层预测方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
ANALYSIS OF THE MAIN PARAMETERS OF LOW-AMPLITUDE FAULT DISTURBANCES IN COAL SEAMS AND SPATIAL IMAGE OF THE DISPLACER SURFACE
Purpose. Carrying out a statistical analysis of the main parameters of low-amplitude discontinuous disturbances in a coal seam and restoring a spatial image of the disjunctive mixer surface. Methodology. Based on the results of a statistical sampling of data on small-scale disturbances of the coal seam, obtained directly from the field diary of the chief geologist of the mining enterprise, a classification of discontinuous disturbances of the coal seam by types, angle, dip azimuth and amplitude was made. A comparison was made of the recorded faults in the layers located at a small distance from each other, which made it possible to reproduce the spatial position of the fault and build the surface of its displacement. Results. Statistical data processing has shown that the majority of all faults are normal faults, and the dip angles of their faults range from 55 to 75º, while the dip azimuth of almost half of fault fault faults lies in the range of 0 – 100º. It can be seen from the distribution of the amplitude of disturbances that its indicator in the vast majority of tectonic discontinuities does not exceed 2 meters and, according to the conditions for the possibility of crossing discontinuities by clearing operations, such discontinuities pass with undercutting of side rocks by combines, which reduces the rate of feat and increases equipment wear. Originality. Comparison of faults recorded in formations located at a small distance from each other showed that their main parameters are very different at different horizons, due to which the spatial arrangement and the surface of the disjunctive mixer has a very complex shape, which does not allow predicting the location of the fault by simple geometric transfer from one layer to another. Practical value. The results obtained allow us to establish that the most common amplitude of tectonic faults is in the range from 0 to 2 m, the parameters of the same faults can change at different horizons, and the surface of the fault mixer is a complex geometric shape, which makes it impossible to simple transfer of the fault line from the upper to the lower layer, but requires the use of more efficient methods for predicting faults.
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