论文部分内容阅读
论述了利用地震回折波资料反演界面位置与速度分布的方法，推导了地震波走时对于界面位置偏导数的计算公式。数值模拟和实测资料的计算结果表明了该方法的有效性和编制的计算程序的实用性。该方法最突出的特点是充分地利用了透射波资料中所含的界面位置的信息。界面位置的分辨率与界面两边的速度反差有关，速度差别越大，则分辨率越高。
This paper discusses the method of retrieving interface location and velocity distribution by using seismic refraction data, and derives the formula for calculating the partial derivative of seismic wave travel time. The results of numerical simulation and measured data show the effectiveness of the method and the practicability of the programmed program. The most prominent feature of this method is that it makes full use of the information of the interface position contained in the transmitted wave data. The resolution of the interface position is related to the speed contrast on both sides of the interface. The greater the speed difference, the higher the resolution.