Type Selection and Structural Design of the Flood Discharge and Energy Dissipation Structures in Yanjiaotang Reservoir
The type of the flood discharge structures is an important factor for the project planning and the flood control.To ensure that the flood discharge structures in Yanjiaotang Reservoir appropriately match the specific conditions of the project such as the topographic conditions,the weak foundation rock of the dam,and the thin anti-sliding rock mass on the dam shoulder,a detailed study is carried out on the discharge capacity,flood discharge method,spillway structure and energy dissipation type,considering the project layout,investment and inundation land occupation.The results show that the layout scheme with the overflow spillway and the bottom flow energy dissipation is compact in space,which can reduce the excavation of the spillway and shorten the length of the discharge structures.Also,it is of less environmental damage and better technical and economic benefits.
flood discharge structuresflood discharge with overflow spillwayenergy dissipation by bottom flowYan-jiaotang Reservoir
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