Xi'an Research Ilnstitute Company Limited,China Coal Technology and Engineering Group

针对大型采煤工作面内出现多种地质异常体须探测的问题,采用透射槽波能量衰减系数CT成像技术在多个矿井工作面内分别对断层、陷落柱、薄煤带3种典型地质异常体进行探测。将探测结果与后期收集的验证资料对比表明:透射槽波在遇断层、陷落柱以及薄煤带时,能量有明显的衰减现象;槽波能量衰减系数CT成像结果能够有效反映多种地质异常体的位置与范围;地质异常体衰减系数为0.03~0.06,不同类型异常体的衰减系数有一定差异但并不显著。

According to the detection of mutiple types of geologic anomalous bodies occured in large coal mining face,the ransmitted chanel wave energy attenuation coeicient CT inmage technoiogy was aplild to detect the fautsinkhnole and thin seam zone three typical geolgic anomalous bodies in several coal mining fcesThe comparison betwee the detecion resulis and thelate collacted verfied information showed that the energy ofthe transmitld chanmel wave in the fault sinkhnole and the thi seam zone would have obicus ttenuation phenomenon.The se ismic chanel wave energ atenuation cecient CT resuits could effctive refect thelocation and scope of several geologic anomalous bodies.The attenuation coeficient of a geologic anomalous body was 0.03~ 0.06 and attenuation cefficients o different type anomalous bodyies would have a certain difference,but would not be obvious.

科技部科研院所技术开发研究专项资助项目(2014EG122201)；国家科技重大专项资助项目(2011ZX05040-002)；