一种海域航道设计回淤量的确定方法

By using a graded wave height and frequency analysis method, the problem of the influence of wave condition frequency distribution changes on channel siltation volume in existing technologies has been solved, and accurate calculation of channel design siltation volume has been achieved, which is applicable to channels with various seabed strata.

CN117436178BActive Publication Date: 2026-07-17SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD
Filing Date
2023-11-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies fail to accurately reflect the impact of wave condition frequency distribution variations on sediment content and siltation volume when calculating the design siltation volume of sea channels, resulting in insufficient calculation accuracy and inapplicability to channels with different seabed strata.

Method used

The method employs graded wave height and frequency analysis, refines wave height grades and combines them with frequency statistics. By using measured or extrapolated data from representative points of channel wave levels, it calculates the channel siltation intensity and design siltation volume under different wave height conditions, making it applicable to various seabed sediments.

Benefits of technology

It significantly improves the prediction accuracy of channel design siltation, can reflect the differences in wave conditions between years and seasons, is applicable to channels with different seabed strata, and meets the actual needs of water transport engineering.

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Abstract

一种海域航道设计回淤量的确定方法,包括:对航道波浪水平代表点的实测的或推算的波浪资料,按波高级差0.10m~0.75m将波浪进行分级,统计得到的航道波浪水平代表点的任意时段的各级波高的频率;其各级波高的相应频率与各级波高条件下的航道回淤强度组合,乘以航道面积,分别得到任意时段的航道设计回淤量;在此基础上,经累积频率统计分析,得到不同累积频率的航道设计年回淤量。一不仅大幅度细化波高分级和均匀波高分级,大幅度提升波浪动力的模拟精度,而且可以体现波浪条件年际间、季节间、月际间的差异对回淤量变化的影响程度,从而显著提高航道设计年回淤量的预测精度,二适用于各类海床底质。适用于水运工程行业沿海航道工程的研究、建设和维护。
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