The main results are : 1 . first the relation between the stability of changjiang riverbed and site selecting of engineering is discussed in this paper . solving the basis problem of site selecting of engineering 本文研究的主要成果有： ( 1 )首先讨论了长江河床稳定性和工程选址的关系，解决了工程选址的基础问题。
2.
The research of bend channel of reach guide - lijia flume from longyang flume to lijia flume in upstream of the yellow river is proceeded to present rules of feasibility analysis for navigation between the flumes and the riverbed stability 摘要对黄河上游龙羊峡至李家峡间的贵德李家峡河段的蜿蜒河道进行了研究，为蓄水两坝间的通航和河床稳定性问题提供可行性分析依据。
