花草滩煤矿采区三维地震勘探应用研究

    Research on the Application of 3D Seismic Exploration in Huacaotan Coal Mine Mining Area

    • 摘要: 地下开采通常需要面临复杂的地质条件和高度隐蔽的地质异常体(如小断层、小褶皱和陷落柱等),这对地质精准探测技术提出更高要求。三维地震勘探技术因其成熟的数据处理体系和高精度探测能力,已成为识别隐伏地质构造和确定煤层顶底板高程的关键技术。研究系统评估了针对复杂浅层地质环境优化的三维地震勘探技术,包括采用大吨位可控震源(30.3 t)增强激发能量,优化激发与接收配置(10线10炮单边/中间/下倾放炮组合),并遵循高信噪比、高分辨率和高保真度的数据处理原则。结果表明,该方法能有效探测地质异常,对勘探区内的煤层分布、断层构造的性质、无煤区的分布等进行了解释和确定,同时验证了在复杂地形条件下实现高质量数据采集的可行性。三维地震勘探的应用显著提高了隐伏地质灾害识别的准确性,为智能化矿山建设和安全高效开采提供了可靠的地质依据。

       

      Abstract: which frequently encounter complex geological conditions and highly concealed geological anomalies such as minor faults, small folds, and collapse columns. These challenges necessitate more sophisticated geological detection technologies. Three-dimensional (3D) seismic exploration has emerged as a pivotal technique for identifying concealed geological structures and determining coal seam roof and floor elevations, owing to its well-established data processing framework and high-precision detection capabilities. This study presents a systematic evaluation of optimized 3D seismic exploration techniques for complex shallow geological environments. The methodology incorporates a high-capacity vibroseis (30.3 tons) to enhance excitation energy, along with optimized source-receiver configurations (10-line 10-shot unilateral/central/downdip shooting arrays). Data processing strictly adheres to the principles of high signal-to-noise ratio, high resolution, and high fidelity. The results demonstrate the method's effectiveness in detecting geological anomalies, including the interpretation and determination of coal seam distribution, fault characteristics, and coal-free zones within the exploration area. Additionally, the study confirms the feasibility of obtaining high-quality seismic data in complex topographical conditions. The application of 3D seismic exploration significantly improves the accuracy of identifying concealed geological hazards, thereby providing reliable geological support for intelligent mine construction and safe, efficient coal extraction.

       

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