索风营水电站溢流表孔闸墩结构设计

Design of pier structure of overflow orifice of Suofengying hydropower project

索风营水电站洪水峰高量大，闸孔宽度相应较大，坝址区河谷狭窄使得泄洪表孔闸墩厚度较薄，通过大量的分析，合理布置闸墩钢筋、预应力锚索，使闸墩应力满足承载能力及正常使用的要求，为狭窄河谷泄洪系统的设计提供工程经验。

Because the valley where the dam site area of Suofengying hydropower project is located, is narrow, so there is a quantity of flood flow and the gate opening is relatively wide to make the overflow orifice pier is thinner. Through a lot of analysis and model tests, reasonable reinforcement bar layout and prestressed anchorage cable, the pier stress meets the of overflow system in the bearing narrow capacity and normal operation requirement. It provides the references for the layout valley.