本文根据1855年铜瓦厢决口以来的历史记载和一些桥址的地质资料,进行了初步的整理和分析,对山东河段历史演变的几个问题提出了看法。一、铜瓦厢决口的原因及其影响铜瓦厢决口发生于咸丰五年(1855年)六月十九日。“铜瓦厢者,明景泰四年所开之渠,以引黄入卫者也”。后来由于原武一带的水患,在铜瓦厢又开渠二十里,将涝水向东北引入运 Based on the historical records and the geological data of some bridge sites since 1855, the paper summarizes and analyzes the problems of the historical evolution of Shandong reach. First, the reasons for the copper tile burst and its impact Copper tile burst occurred in Xianfeng five years (1855) June 19. “Cuiwa who Ming Jingtai opened four years to divert people into the yellow.” Later, due to flooding in the vicinity of the original wu, the copper wagon box opened another 20 li and introduced waterlogging to the northeast