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本区位于吕梁山脉中段东翼,晋中盆地的西缘。由于构造运动所致,西缘山区不断升起,形成构造剥蚀成因的低山及中高山地形。地形高差大,相对高差最大为467.8m。测区内2号煤、3号煤大部分地段已被采掘。8号煤、9号煤局部地段被采空,由于采空区的存在使得深层地震地质条件变复杂。试验确定生产技术参数;在资料处理中针对山区的特点,重点作了静校正、叠前去噪、空变切除等方法,提高信噪比,保证反射同相轴的连续性;利用三维地震数据体水平切片、层拉平切片等多种方法对断层、采空区、陷落柱进行解释。根据所取得的地质成果证明了在复杂山区开展三维地震勘探可以取得良好的勘探效果,为矿井建设提供了地质依据。
The area is located in the eastern section of the middle Lvliang Mountains, west of the Jinzhong Basin. Due to the tectonic movement, the mountainous areas in the western margin have been rising continuously to form low mountains and middle and high mountain terrain with tectonic denudation. Topographical height difference, relative maximum difference of 467.8m. Zone 2 coal, 3 coal most of the lot has been excavated. No.8 coal and No.9 coal have been partially emptied. Due to the existence of the goaf, the geological conditions of deep earthquakes are complicated. In the process of data processing, according to the characteristics of mountainous areas, the methods of static correction, pre-stack denoising and space-cut researches are focused on to improve the signal-to-noise ratio and ensure the continuity of reflection events. By using the 3D seismic data body Horizontal slice, slice level slice and other methods to explain the fault, goaf, collapse column. According to the geological results obtained, it is proved that the three-dimensional seismic exploration in complex mountainous areas can achieve good exploration results and provide the geological basis for mine construction.