水上地震折射互换法误差分析
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摘要
在理论上,用源检互换的方法进行折射地震勘探是没有误差的,在某些特殊条件下无法铺设检波器而又必须进行折射地震勘探时它也是唯一的选择,然而,在实际工作中,由于各种因素的影响,其误差是不可忽略的。为此,本文从地震折射运动学的角度对水上地震折射互换法因过河钢丝绳的重量、水的流速和流向、炮点深度等客观因素造成的解释误差进行了分析,揭示了水上地震折射互换法应注意的问题。这对水上地震折射互换法的资料解释进行误差校正提供了理论基础。
In theory,there is no error for the refractive seismic exploration by permuting the focus and the cymoscope.In some especial condition,it would be the only choice because that refractive seismic exploration is needed,but the error can not be neglected because of various factors.Therefore the error is construed in the way of kinematics of refractive seismic exploration from the steel wire's weight of crossing river,velocity and way of water and the depth of focus,etc.It is shown that some problems should be considered in refractive seismic exploration on water.
In theory,there is no error for the refractive seismic exploration by permuting the focus and the cymoscope.In some especial condition,it would be the only choice because that refractive seismic exploration is needed,but the error can not be neglected because of various factors.Therefore the error is construed in the way of kinematics of refractive seismic exploration from the steel wire's weight of crossing river,velocity and way of water and the depth of focus,etc.It is shown that some problems should be considered in refractive seismic exploration on water.
引文
[1]陈仲侯,傅唯一.浅层地震勘探[M].成都:成都地质学院出版社,1986.
[2]李立鹏.现代工程数学手册[M].武汉:华中工学院出版社,1985.
[3]陈新球,彭绪洲.用折射方法提取反射资料解释参数[J].工程地球物理学报,2004,1(3):274~277.
[4]秦爽,秦正.综合物探方法在南水北调西线工程中的应用[J].工程地球物理学报,2004,1(4):325~328.
[2]李立鹏.现代工程数学手册[M].武汉:华中工学院出版社,1985.
[3]陈新球,彭绪洲.用折射方法提取反射资料解释参数[J].工程地球物理学报,2004,1(3):274~277.
[4]秦爽,秦正.综合物探方法在南水北调西线工程中的应用[J].工程地球物理学报,2004,1(4):325~328.
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