槽波地震勘探技术在采煤工作面构造探测中的应用

    Application of Slot Wave Seismic Exploration Technology in Coal Mining Face Structure Detection

    • 摘要: 采煤工作面构造探测是实现工作面安全高效开采的重要保障。以乌兰木伦煤矿12404工作面构造探测为研究背景,应用采煤工作面槽波地震勘探技术,优化勘探工艺参数,通过沿主运巷、回风巷和切眼布置激发点和检波点,共布设接收点249道,测线长度2 480 m;采用20 m间距,布置激发点129个。采用全排列采集方案接收有效数据,采集有效数据129炮,经验证数据全部满足要求。应用透射槽波及反射槽波相结合的方法,进行数据处理与解释,得出该工作面内有4条断层,并无其他地质异常构造,进一步分析得到了4条断层的走向、落差、控制延展长度和控制程度等具体参数。

       

      Abstract: The structural detection of coal face is an important guarantee to realize safe and efficient mining of coal face. Taking the structural detection of working face 12404 in Wulanmulun Coal Mine as the research background, the in-seam seismic exploration technology was applied to optimize the exploration process parameters. Through the arrangement of excitation points and detection points along the main transport lane, return air lane and cut hole, a total of 249 receiving points and measuring line length of 2,480 m were set up. A distance of 20 m was used to arrange 129 excitation points. The full array acquisition scheme was adopted to receive the effective data, and the 129 guns were used to collect the effective data. All the verified data met the requirements. Using the method of combined transmission slot wave and reflection slot wave, data processing and interpretation, it is concluded that there are 4 faults in the panel, and there are no other geological anomalies. By further analysis, the strike, drop, length and degree of control of the four faults were obtained.

       

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