探讨了层状介质中由时间确定速度、深度的模型 ,给出了相应的共反射段相干反演方法。数值模拟结果表明这种方法精度较高 ,抗噪性能强。对荆江松滋口的部分浅层反射资料处理与现有资料吻合 ,表明该方法具有一定的应用前景 The model of velocity and depth determined by time in stratified medium is discussed, and the corresponding co-reflection section coherent inversion method is given. Numerical simulation results show that this method has higher accuracy and strong anti-noise performance. The partial shallow reflection data processing of Songzikou of Jingjiang River is consistent with the existing data, which shows that the method has certain application prospects