正交试验法在感潮河口水闸闸下冲淤试验中的应用

Application of Orthogonal Method in Scouring and Silting Experiment under the Sluice at Tidal Estuary

河口水闸闸下淤积问题非常普遍,需通过水力冲淤来解决。影响水力冲淤效率的因素主要有闸上水位、下游潮位、下泄流量、闸下淤积高度、潮沟情况等。通过温州殴飞滩南2#闸水工模型实例,介绍使用正交试验法研究这5个因素对水力冲淤效率的影响,得到影响水沙比的主要因素以及各个因素之间的主次关系,为河口水闸的运行调度、冲淤等提供技术依据。

Sedimentation under the sluice at tidal estuary is very universal, and it need to solve the problem by hydraulicwashing. Factors affecting the efficiency of hydraulic washing are the upstream water level of sluice, the downstream tide level of sluice, releasing discharge, the height of deposition under the Sluice, the situation of tidal channels and so on. Through thehydraulic model case of 2 # Sluice at south Oufei shore in Wenzhou, this paper studied the 5 factors＇ influences to the efficiency of hydraulic washing by Orthogonal Method and drew a conclusion of the Main factors influencing Quantity ratio of water to silt andthe important order of 5 factors. This conclusion will provide technical basis for operation and hydraulic washing of the Sluice atTidal Estuary.