煤体瓦斯与地震波属性的相关性试验
|
摘要
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。
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.
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.
引文
[1]卢鉴章,刘见中.煤矿灾害防治技术现状与发展[J].煤炭科学技术,2006,34(5):1–5.
[2]余贵军.综合治理措施在防治煤与瓦斯出中的应用[J].中州煤炭,2009(2):85–86.
[3]彭苏萍,高云峰,杨瑞召,等.AVO探测煤层瓦斯富集的理论探讨和初步实践[J].地球物理学报,2005,48(6):1475–1485.
[4]刘盛东,张平松.矿井构造与瓦斯的震波超前探测技术应用分析[J].煤炭科学技术,2005,33(1):39–41.
[5]郭立泉,刘盛东.巷道构造震波超前探测技术及其应用[J].煤炭科学技术,2008,36(11):99–102.
[6]杨双安,张会星.三维地震资料预测瓦斯富集区的应用[J].煤炭科学技术,2009(8):108–110.
[7]吴有信.综合物探技术在煤矿灾害防治中的应用[J].安全与环境工程,2009,16(2):95–100.
[8]王凯,王轶波,卢杰.煤与瓦斯突出动态前兆的非线性特征研究[J].采矿与安全工程学报,2007,24(1):22–26.
[9]刘洪永,程远平,周红星.立井煤与瓦斯突出危险性分析及防治措施[J].采矿与安全工程学报,2007,24(2):173–177.
[10]程远平,周德永,俞启香.保护层卸压瓦斯抽采及涌出规律研究[J].采矿与安全工程学报,2006,23(1):12–18.
[2]余贵军.综合治理措施在防治煤与瓦斯出中的应用[J].中州煤炭,2009(2):85–86.
[3]彭苏萍,高云峰,杨瑞召,等.AVO探测煤层瓦斯富集的理论探讨和初步实践[J].地球物理学报,2005,48(6):1475–1485.
[4]刘盛东,张平松.矿井构造与瓦斯的震波超前探测技术应用分析[J].煤炭科学技术,2005,33(1):39–41.
[5]郭立泉,刘盛东.巷道构造震波超前探测技术及其应用[J].煤炭科学技术,2008,36(11):99–102.
[6]杨双安,张会星.三维地震资料预测瓦斯富集区的应用[J].煤炭科学技术,2009(8):108–110.
[7]吴有信.综合物探技术在煤矿灾害防治中的应用[J].安全与环境工程,2009,16(2):95–100.
[8]王凯,王轶波,卢杰.煤与瓦斯突出动态前兆的非线性特征研究[J].采矿与安全工程学报,2007,24(1):22–26.
[9]刘洪永,程远平,周红星.立井煤与瓦斯突出危险性分析及防治措施[J].采矿与安全工程学报,2007,24(2):173–177.
[10]程远平,周德永,俞启香.保护层卸压瓦斯抽采及涌出规律研究[J].采矿与安全工程学报,2006,23(1):12–18.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心