摘要
槽波在煤层及其附近岩石介质传播过程中，其能量随传播距离的增大而不断衰减，槽波衰减与其柱状波前扩散及几何频散有关，同时也与煤槽吸收作用有关。能量衰减限制了槽波地震勘探的探测范围。本文讨论了煤槽的Ｑ值及其影响因素。
The channel wave energy attenuates with the distance of propagating through real coal seam and the vicinity of the surrounding rocks. The attenuation of channel waves not only depends on the cylindrical wave front divergency and the geometry dispersion, but relates to the absorption of the 'coal channel'. The attenuation of channel waves decreases the detected range by using ISS.In this paper, the Q value of the coal channel and the factors affecting on it are discussed.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1993年第5期83-86,共4页
Journal of China Coal Society
关键词
煤层
槽波
吸收衰减
煤田地质
coal seam
channel wave
attenuation by absorption
Q value
