煤体瓦斯与地震波属性的相关性试验

在突出煤层巷道中，采用矿井巷道地震波超前探测方法，按照巷道腰线方向进行线性观测系统布置，三分量接收，人工锤击激发，进行多次跟踪探测试验；利用初至波求取掘进煤巷迎头前方30 m范围内的纵、横波视速度，并计算出纵横波速度比和泊松比等地震波属性参数；对比分析对应的瓦斯检验参数发现，煤体中瓦斯含量与地震波属性间具有一定的相关性，研究结果有望为瓦斯突出危险性预测提供一种新的思路和途径。 

Experimental study on the relationships of coal gas and seismic attributes

Many tracing experiments were made with the system designed in the linear direction of the middle of tunnel by using mine seismic prediction method and three-component sensors & artificial hammering hypocenter.Thirteen apparent velocities of P-wave and S-wave of 30 meters coal in front of the driving head were gained by picking up first break in 13 coal roadways.Other parameters of seismic attributes such as P-wave and S-wave velocity ratio and Poisson's ratio were figured out based on the velocity data.And the congruent relationships of the coal-gas features and the apparent velocity of P-wave and S-wave & Poisson's ratio were achieved by the parameters of seismic attributes and the corresponding gas test parameters of each tunnel.It indicates that there is some good relevance between the content of gas and the apparent velocity of P-wave and S-wave.The linear relations between them based on the gas data were gained.The research results can be expected to provide a new idea and way that should be used to predict the risk of the coal and gas bursting.