申庄水库溢洪道水流改善措施研究

Study on Measures to Improve Flow Pattern of Spillway of Shenzhuang Reservoir

申庄水库溢洪道布置受地形条件限制,设计中泄槽设置了弯道和收缩段,下泄水流受其影响形成了不对称冲击波,两岸水深差悬殊,且影响鼻坎挑流消能。文中通过水工模型试验,提出了在弯道末端布置横向挑流坎的方案,明显改善了水力条件,为工程改造提供了依据。

Because of restriction of topographic condition, in the design of spillway of Shenzhuang Reservoir, the bend section and the constricted section are set up in chut of spillway. Under this design condition, unsymmetrical blast wave will appear in discharge flow, the difference of water depth between both band sides of spillway will be great; the effect of ski-jump energy dissipation bucket will be influenced. Through the hydraulic model test, a plan of setting up transversal bucket in the end of bend section is put forward, and the hydraulic condition of spillway will be improve evidently. This test provides scientific basis for project reform.