透射法槽波地震勘探技术在工作面探测中的应用研究

Application Study on In-Seam Seismic Survey Using Transmission Method on Exploration of Working Face

工作面内部煤厚变化、小构造等异常体是煤矿开采过程中需要解决的关键问题,槽波地震勘探属解决这些问题的重要物探方法。基于特定频率下槽波波速与煤层厚度的关系,通过频散分析、拾取波速、CT成像等槽波地震数据处理手段,预测工作面内部煤厚变化及小构造分布情况,实际回采验证了其准确性。为工作面的安全高效生产提供了地质依据。

It is the key problems to detect the coal thickness changes and the small structure in the development of underground coal mining,and In-Seam Seismic （ISS）exploration technology is an important geophysical exploration method to solve those problems. Based on the relationship between velocity of channel wave and coal thickness in specific frequency, through the seismic data processing means of dispersion analysis ,picking, CT imaging, and so on, the change of the coal thickness on working face and the distribution of small structure were was forecasted. Accuracy of result was well verified by mining, which provides geological basis for working face mining safety and efficiently.