Abstract: Large-diameter concrete-filled steel tube (CFST) arch bridge transverse braces adopt self-compacting concrete to avoid laitance and air void defects. However, several old CFST arch bridges in China use ordinary concrete, ...

Abstract: Until recently, ordinary concrete has been used to construct concrete-filled steel tube (CFST) arch bridges in China, which has resulted in the formation of circumferential gaps around steel–concrete interfaces. Furthermore, ...

Abstract: Problems and difficulties in modeling sediment transport in alluvial rivers arise when one uses the theory of equilibrium transport of uniform sediment to simulate riverbed variation. A two-dimensional mathematical model ...

Abstract: A 1D mathematical model to calculate bed variations in alluvial channels is presented. The model is based on the depth-averaged and moment equations for unsteady flow and sediment transport in open channels. Particularly, ...

Abstract: Initial rainwater carries a large number of pollutants, easily causing urban nonpoint source pollution. Determining the concentration of pollutants in initial rainwater is crucial for controlling urban nonpoint source ...

Abstract: Sedimentation is one of the earliest and most important unit operations in water and wastewater treatment. Conventional approaches for studying sedimentation of Class I settling tanks did not present enough information on ...