一、概述为了预测黄河下游在三门峡水库建成后可能发生的变化,进行测验,提供验证模型试验和从事科学研究的必要资料,以为整治河道的科学根据,于1957年开始在黄河京广铁桥至来童寨河段进行了河床演变的观测。1957年取得的资料已经整理分析并提出了报告。1958年的工作,在原有的基础上,通过整风、反右派斗争,职工政治思想觉悟普遍提高,在社会主义大躍 I. Overview In order to predict the possible changes in the downstream of the Yellow River after the completion of the Sanmenxia Reservoir, the tests were carried out to provide necessary data for verifying the model tests and scientific research. Based on the scientific basis for river regulation, The Tongzhai Reach made observations of river bed evolution. The information obtained in 1957 has been analyzed and presented. In 1958, on the basis of the original work, through the rectification and anti-rightist struggles, the political consciousness of workers and staff members was generally improved. In the wake of the socialist revolution