新安水库溢洪道加固设计的体会

Realizing of the strengthening design for spillway of the Xinan reservoir

新安水库自１９５８年建成蓄水运行以来，已收到了很大的灌溉效益，但也存在诸多隐患，被列为三类险库，尤其是溢洪道，曾出现多次险情。加固设计从多方面分析原溢洪道隐患的原因，提出相应的对策，通过水工模型试验加以验证，确定了加固方案。

The Xinan reservoir has gained many irrigation benefits since it was built and stored water in 1958,but it has many hidden dangers, and it was listed the 3rd grade dangerous reservoir. Especially, its spillway had already happened many times dangers. Designers analysed the hidden dangers' cause of the spillway in many ways, and suggested relevant countermeasures and decided on the strengthening design scheme that passed through hydraulic model test.