【摘要】 在进行折射波地震勘探时，中间层有时出现隐蔽（包括中间薄层和中间低速层），这时利用野外获得的折射波时距曲线直接解释会与地质实际出现较大的差异。因此，所得解释结果必须根据测区内地层速度模型进行校正，以提高折射波地震勘探成果的解释精度，满足工程勘察之需。更多还原

【Abstract】 In the seimic refracted wave explorating, sometimes the middle layer is concealed .If use refracted wave time-distance curve from to explain derectly, there may be a lot differences between it and geology condition .In order to improve the explaining accuracy and meet the project need, the explain result must be corrected according to the layer velocity model investigation.更多还原