【摘要】 射线追踪方法不但是研究地震波传播问题的有效手段之一，而且在地震层析成像和叠前深度偏移等方面都起着重要的作用，射线追踪的计算精度和速度将直接影响层析成像和叠前深度偏移的效果。本文改变了传统的层状地层的建模方式，提出了一种射线追踪中块状结构的建模方法。新的建模方式使射线追踪方法能应用于十分复杂的地质对象。在用块状结构建模方法的编程中，Ｃ＋＋语言起了重要的作用。文中给出了在十分复杂的地质结构中应用块状结构方法建模并用迭代追踪法进行射线追踪的计算实例。更多还原

【Abstract】 Ray-tracing not only is one of effective measure for studying the problem of seismic wave propagation, but also plays an important role in seismic tomography and pre-stack depth migration. Its computing precision and speed directly effect on results of tomography and pre-stack depth migration. Changing model-building formula in traditional layered earth model, the paper presented a blocky structural model-building method for ray-tracing. New model-building technique can apply ray-tracing to rather complicated geologic objects. C+ + language plays an important role in programming of blocky structural model-building method. Real computing case using blocky structure for model-building in rather complicated geologic structure and conducting ray-tracing by iteration is given in the paper.更多还原