BED LOAD TRANSPORT CAPACITY AND BED RESISTANCE IN EXCLUDER TUNNELS

摘要

Excluder tunnels are devices to effectively by-pass sediments to the tail water reach of water intakes. Inside the tunnel coarse sediments form a particular bed layer dominating the whole transport mechanism. The investigation tries to specify relations for different parameters of the bed and its roughness. The derived equations enable an improved basis for the hydraulic design of excluders