采煤工作面地质异常体透射槽波探测技术  

Transmitted channel wave detecting technology of geologic anomalous body in coal mining face

作　　者：王季 李刚 吴国庆 牛欢 刘硕 王保利 

机构地区：[1]中国煤炭科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤炭科学技术》2016年第6期159-163,193,共6页Coal Science and Technology

基　　金：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)

摘　　要：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 occurred in large coal mining face,the transmitted channel wave energy attenuation coefficient CT image technology was applied to detect the fault,sinkhole and thin seam zone three typical geologic anomalous bodies in several coal mining faces. The comparison between the detection results and the late collected verified information showed that the energy of the transmitted channel wave in the fault,sinkhole and the thin seam zone would have obvious attenuation phenomenon. The seismic channel wave energy attenuation coefficient CT results could effective reflect the location and scope of several geologic anomalous bodies. The attenuation coefficient of a geologic anomalous body was 0. 03 ~ 0. 06 and attenuation coefficients of different type anomalous bodyies would have a certain difference,but would not be obvious.

关 键 词：透射槽波 地质异常体 衰减系数 CT成像 

分 类 号：P631.8[天文地球—地质矿产勘探]