最大炮检距对陷落柱探测的影响
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摘要
陷落柱是煤矿开采中的一种常见地质灾害体,地下岩溶水有可能通过陷落柱导升,威胁矿井安全。而三维地震勘探是探测陷落柱的一种有效手段,但目前仍不能满足煤矿地质任务。而最大炮检距在陷落柱探测中有一定影响,以煤田陷落柱为基础,构建陷落柱模型,采用声波方程,在考虑单因素变化原则下,模拟不同的最大炮检距对陷落柱的影响,并对地震记录进行处理,对所得叠加剖面进行对比分析后,认为小炮检距有利于陷落柱勘探。
Collapse column is a common geological disaster in coal mining,underground karst water threatens to coal mine safety by subsided column guide rise. The three- dimensional seismic exploration is an effective mean of detecting subsided column,but it still can not meet mine geology tasks. The maximum offset had a certain influence on the detection of collapse column,taking coal field collapse column as basis and building collapse column model,we use acoustic wave equation to simulate the influence of different maximum offset on collapse column and deal with seismic record in consideration of the principles of the single factor changes. We thick that small offset is advantageous to the exploration of collapse column after comparison and analysis on the stack profile.
Collapse column is a common geological disaster in coal mining,underground karst water threatens to coal mine safety by subsided column guide rise. The three- dimensional seismic exploration is an effective mean of detecting subsided column,but it still can not meet mine geology tasks. The maximum offset had a certain influence on the detection of collapse column,taking coal field collapse column as basis and building collapse column model,we use acoustic wave equation to simulate the influence of different maximum offset on collapse column and deal with seismic record in consideration of the principles of the single factor changes. We thick that small offset is advantageous to the exploration of collapse column after comparison and analysis on the stack profile.
引文
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[10]孙庆贵.岩溶陷落柱对煤矿的影响与处理措施[J].工程技术,2008(1):5.
[2]杨晓东,杨德义.煤田陷落柱特殊波对陷落柱解释的影响[J].物探与化探,2010,34(5):627-631.
[3]杨德义,王赟,王辉.陷落柱的绕射波[J].石油物探,2000,39(4):82-86.
[4]郭树祥.地震采集观测系统设计分析与探讨[J].油气地球物理,2009(10):1-5.
[5]高磊,潘树林,尹成,等.复杂地区观测系统分析评价的照明度函数设计[J].地球物理学进展,2012,27(2):255-262.
[6]常锁亮,杨起,刘大锰,等.煤层气储层物性预测的AVO技术对地震纵波资料品质要求的探讨[J]地球物理学进展,2008(8):1236-1243.
[7]宁建宏,张广忠.陷落柱的地震识别技术及其应用[J].煤田地质与勘探,2005,33(3):64-67.
[8]张爱印,石亚丁,殷全增,等.三维地震和电法综合勘探在查明陷落柱构造中的应用[J].煤炭技术,2004,23(2):80-81.
[9]李之奋,董守华,李东会.陷落柱地震数值模拟响应特征分析[J].能源技术与管理,2007(6):36-39.
[10]孙庆贵.岩溶陷落柱对煤矿的影响与处理措施[J].工程技术,2008(1):5.
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