基于回归分析的龙泉港出海闸高淹没度下水位流量关系率定

Study on Stage-discharge Relation of Longquan Port Sea Sluice at High Inundation Degree Based on Regression Analysis

摘要:

龙泉港出海闸排水受外海潮汐影响显著，不适宜采用堰闸流量系数法进行推流。结合龙泉港出海闸水文过程试验的实测资料，以水力学公式为基础，采用回归分析法率定得到了高淹没度状态下的水位流量关系式，并对关系式进行了符号检验、适线检验、偏离检验和精度分析，结果表明：回归分析法率定得到的出海闸高淹没度状态下的水位流量关系成功通过了三项检验，定线精度能够达到一类精度标准，可以在受潮汐影响的出海闸水位流量关系率定中推广使用。

Abstract:

Due to the drainage of sea sluice gate of Longquan Port significantly affected by offshore tides, it is not suitable to use the weir gate flow coefficient method to push the flow. Combined with the measured data for testing the hydrologic process of the sea sluice gate, based on the hydraulic formula, the calibration of regression analysis method is used to give the stage-discharge relation at high inundation degree. And the symbolic test, line-fitting test, deviation test and accuracy analysis are conducted on the relation. The results show that the stage-discharge relation at high inundation degree of sea sluice determined by the calibration of regression analysis method successfully passes three tests. The alignment accuracy can reach Class I accuracy standard, which can be popularized and applied in the calibration of the stage-discharge relation of sea sluice in tidal influence.