Research on the engineering investigation and information in the region of rivers channel and shallow sea

The authors illustrate the principles including of GPS, depth measurement meter, Side Scan Sonar and Sub-bottom Profile in detail to depress or avoid the danger and pressure of mud and sand depositing in the region of reservoir, rivers and shallow sea. At the same time, they apply the graph and data to testify the principles, which are illustrated above. These theories and the methods are beneficial for the engineering investigation and survey in inland water and coastal in China.