Observation and analysis of the river bed scour behind the third dam of Gutianxi;

This paper studied the formation of recent three strata underlying the river bed in the reaches from Taiqian of Henan to Weishan of Shandong according to the stratigraphic analysis and soil tests.

Based on analysis about the situation of exploiting sand in recent ten years and the field data of river topography in recent thirty years in Fuyang reach of Fuchun River,the authors find that massive and irregular exploiting sand from the river bed has caused new problems.

Research and Implementation of Dynamic Updating and Spatial Analysis of Yangtze River Riverbed;

Author especially mentions the application of soundless breaking agent to break rock in riverbed to ensure the safety and reliability of construction.

According to the calculation results of general erosion of riverbed of bridge,this paper analyzes the impact of the main parameters in the formula to general erosion,gives the scope of application and defects of that formula,and proposes a suggestion on determination of general erosion depth.

Measurement in situ of streambed hydraulic conductivities in the Platte River, Nebraska;

Measurement of streambed hydraulic conductivity and anisotropy analysis;

Influence on infiltration ditch water intake from the change of river bed condition;