Engineering Geological Investigation of Yangtze River Dike

The dike on the middle and lower reaches of Yangtze River is about 3600 kilometers. Owing to a long history of its formation, the complicated filling of dike body, the irregular density of compression, the uncompacted junction of the dike and foundation, as well as the complex geological structures of dike ground, the dangerous circumstances on the dike body, dike foundation and bank happen frequently in flood seasons every year accordingly, which exceedingly threaten the safety of people's lives and properties. In this article, the main engineering geological problems are concluded, some thoughts and methods in engineering geological investigation are put forward, and the classification of engineering geology of dike foundation is discussed, at last some cognitions about several issues in dike engineering of Yangtze River are stated.