Method for analyzing and evaluating influence of dredging depth and dredging width on flow capacity of harbor branch

By establishing a two-dimensional hydrodynamic mathematical model and numerical simulation analysis of the split river, the complexity and inaccuracy of the impact of the depth and width of the silting on the port overflow capacity in the prior art was solved, and a more accurate and convenient overflow capacity assessment was achieved.

CN119647799AInactive Publication Date: 2025-03-18FUJIAN PROVINCIAL INVESTIGATION DESIGN & RES INST OF WATER CONSERVANCY & HYDROPOWER +2
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Patent Information

Application Number
CN202510187445.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When the prior art analyzes the impact of silting depth and width on the overcurrent capacity of the port, the calculation process is complicated, and the results are quite different from the actual situation, making it difficult to accurately evaluate the overcurrent capacity.

Method used

Using methods based on numerical simulation and mathematical analysis, a planar two-dimensional hydrodynamic mathematical model of a split river is established. Through model verification, silting depth and width combination scheme formulation, hydrodynamic numerical simulation analysis and diversion ratio calculation, the relationship between the impact of the silting depth and width on the overflow capacity is established.

Benefits of technology

The calculation process is simplified and the accuracy of the calculation results is improved, making the impact of silting depth and width on port overcurrent capacity more reliable and convenient.

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Abstract

The invention discloses a method for analyzing and evaluating the influence of dredging depth and dredging width on the port branch flow capacity. The method comprises the following steps that 1, a bifurcated river plane two-dimensional hydrodynamic mathematical model where a dredging port branch is located is established; 2, carrying out mathematical model calibration verification; 3, a desilting section desilting depth and desilting width combination scheme is prepared; 4, carrying out river hydrodynamic numerical simulation analysis under different desilting section depth and desilting section width combination schemes; 5, introducing a design standard flood lower harbor branch distribution ratio eta to represent the flow capacity of the dredging harbor branch, and analyzing and evaluating the influence of the dredging depth and the dredging width on the flow capacity; the method for analyzing and evaluating the influence of the dredging depth and the dredging width on the flow capacity of the harbor branch based on the numerical simulation means and mathematical analysis is provided for solving the problems existing in an existing common method, the calculation process is simple and clear, the conformity of the calculation result and the actual situation is high, and therefore the method has good application prospects. The method has good convenience, operability and reliability.
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