﻿ 基于栅格的不规则断面水深–流量关系曲线确定方法

# 基于栅格的不规则断面水深–流量关系曲线确定方法Grid-Based Determination Method for Water Depth-Discharge Curve of the Irregular Cross-Section

Abstract: Most of the cross-section form of the natural river channel is irregular and the stage-discharge curve (h~Q curve) is higher-order implicit function which causes the difficulties in deriving curve directly. In this study, the sectional form was determined by crossing section measurement, and the flow area corresponding to the different water depth was estimated by number of grid which was inserted in the adopted cross-section. The parameters used in calculation were calibrated through leveling survey and experiment, and the stage-discharge was achieved by calculation, therefore a practicable method was provided for flow calculation under the various irregular sections of hydrology.

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