Siphon Pipeline Resistance Characteristic Research

Siphon desilting can effectively solve the problem of silting-up in small and medium reservoirs. Based on the cross-dam siphon model, through clean water and muddy water siphon tests, the paper investigated hydraulic characteristic, desilting characteristic of the siphon pipe and influence factors. By analyzing the experimental data and calculated results, the calculating method of siphon pipe resistance has been verified. The results show that under certain water head, pipe resistance ascends along with increscent pipe diameter, while it descends when hump height or desilting concentration increases.