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煤层工作面内存在诸多影响安全生产的地质因素,利用层析成像技术可以进一步查明其速度分布特征并进行地质异常体特征解释。本文通过构建工作面测试模型,利用模型试验确立地震波CT探测技术方法、观测系统布置、数据采集参数、数据处理及地质解释等系统内容。现场探测工程实践结果表明:地震波CT成像精度和分辨率能够满足现场生产技术要求,可对矿井工作面地质异常体进行有效探查。
There are many geological factors that affect safety in the coal face, and tomographic imaging can be used to further ascertain the velocity distribution characteristics and explain the characteristics of geological anomalies. In this paper, by building the test model of the working face and using the model test to establish the method of seismic CT detection technology, observing the system layout, data acquisition parameters, data processing and geological interpretation system content. Field exploration engineering practice results show that: seismic wave CT imaging accuracy and resolution to meet the requirements of field production technology, mine surface can be an effective exploration of geological anomalies.