岸边式溢洪道常因地形和工程造价等因素的制约不得不采用弯道泄流，而水流因受离心力的作用给泄槽流态及消能防冲造成了诸多不利因素。为了改善王家厂水库溢洪道弯道水流而提出了扇形抬高陡坡段泄槽底部外侧高程和加设分流墩的设计组合方案。通过水工整体模型的试验验证，该方案是合理的，较好地解决了弯道溢洪道的水流流态及消能防冲问题。 Coastal spillway often due to topography and project cost constraints and other factors have to use the bend discharge, and the flow due to centrifugal force to the sluice flow and energy-saving anti-erosion caused many negative factors. In order to improve the water flow in the spillway of Wangjiachang Reservoir, a design scheme of fan-shaped elevation elevation outside the bottom of the spillway and the addition of shunt piers was proposed. Through the verification of the hydraulic overall model, the scheme is reasonable and well solved the flow pattern of the spillway and the problem of energy dissipation and erosion prevention.