A method and device for estimating leakage characteristics of a large-scale water conveyance channel at a regional scale

By using hydrostatic tests and a surface water-groundwater coupling model, the accuracy problem of assessing leakage characteristics in large water conveyance channels was solved, enabling precise assessment of leakage differences at different locations in the channels and improving the accuracy and practicality of leakage estimation.

CN115659733BActive Publication Date: 2026-06-26WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV
Filing Date
2022-10-17
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies are insufficient to accurately assess the leakage characteristics of large water conveyance channels, especially at the regional scale. The dynamic water method has large errors and is difficult to reflect the leakage differences at different locations in the channel and the overall leakage characteristics.

Method used

The leakage coefficient of the canal bed was measured by static water test. Combined with the surface water-groundwater coupling model and the finite difference method, a dynamic calculation model of canal moisture was constructed to obtain the leakage differences and overall leakage characteristics at different locations in the canal.

Benefits of technology

It improves the accuracy and precision of leakage assessment in large channels, reflects leakage differences at different locations in the channel, and provides more accurate leakage estimation tools and methods.

✦ Generated by Eureka AI based on patent content.

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Abstract

A kind of regional scale large water delivery channel leakage feature estimation method, including selecting target large water delivery channel, collecting the spatial structure characteristics of target large water delivery channel, hydraulic characteristics and the spatial geographic data of study area, selecting the typical branch channel of target large water delivery channel to carry out hydrostatic test and measure channel bed leakage coefficient, obtain the channel system network after target large water delivery channel is dispersed, generate channel segment spatial topological relation, obtain the spatial geographic two-dimensional array of study area, generate channel water dynamic calculation input file, according to the spatial geographic two-dimensional array of study area and channel water dynamic calculation input file, construct surface water-groundwater coupling model, calculate surface ditch channel network water dynamic according to finite difference method, channel system leakage amount result statistics, the channel bed leakage coefficient of the present application is measured by the hydrostatic test of typical branch channel in local position and the spatial characteristics of large water delivery channel, to accurately calculate the leakage difference of large channel in different positions and overall leakage characteristics.
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