关键词: 实体模型, 侧向引水, 取水口, 导流墙, 体型参数

Abstract:

The sediment deposition in water intake on sediment-laden rivers affects the safety operation of water diversion project. Taking the water diversion project of a thermal power plant in northwest region of China as an example, the hydraulic physical model experiment was carried out to study the influence of body shape parameters of guide wall on sediment flushing effect in front of the water intake. Three shapes of guide walls were used in this experiment, namely the submersion type, top-exposed type and compound type. The sand flushing effect of different shapes of guide walls under different flow rate was observed and tested. By combing with the theoretical analysis, some suggestions on the guild wall shape selection were put forward to prevent the sediment deposition in water intake.

Key words: physical model, lateral water diversion, water intake, guide wall, shape parameters