Unlock instant, AI-driven research and patent intelligence for your innovation.

Riverway dynamic sediment transport capacity calculation method and system

A technology of sediment transport capacity and calculation method, applied in the field of engineering sediment, can solve the problems of limiting the applicability of research results and insufficient attention to impact

Active Publication Date: 2021-04-02
YELLOW RIVER ENG CONSULTING
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above shows that the river flow process and channel shape characteristics play an important role in river sediment transport. However, in the past, when studying the river sediment transport capacity, insufficient attention was paid to the influence of river flow process and channel shape characteristics, which limited the existing research. Applicability of results

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Riverway dynamic sediment transport capacity calculation method and system
  • Riverway dynamic sediment transport capacity calculation method and system
  • Riverway dynamic sediment transport capacity calculation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Take the river dynamic sediment transport capacity of Huayuankou-Gaocun section (referred to as Huagao section) in the lower reaches of the Yellow River as an example:

[0118]Taking the Gaocun hydrological station as the representative station of this section of the river, the water and sediment data of the hydrometric station and the topographical changes of the section of the river were collected. According to the measured flood element data, calculate the corresponding flow rate Q(m 3 / s) under the condition of the measured cross-sectional area and the river width B (m) to calculate the corresponding average water depth h (m) of the representative cross-section, take the flow Q as the abscissa, and take the average water depth h as the ordinate. Fit the power function relation h=αQ representing the average water depth h of the section and the discharge Q β ,See figure 2 , according to the fitting results, α=0.141, β=0.350, namely h=0.141Q 0.350 .

[0119] The a...

Embodiment 2

[0124] Take the dynamic sediment transport capacity of the river channel from Gaocun to Aishan in the lower reaches of the Yellow River (referred to as the Gaoai River) as an example:

[0125] Taking the Aishan hydrological station as the representative station of this section of the river, the water and sediment data of the hydrometric station and the topographical changes of the section of the river were collected. According to the measured flood element data, calculate the corresponding flow rate Q(m 3 / s) under the condition of the measured cross-sectional area and the river width B (m) to calculate the corresponding average water depth h (m) of the representative cross-section, take the flow Q as the abscissa, and take the average water depth h as the ordinate. Fit the power function relation h=αQ representing the average water depth h of the section and the discharge Q β ,See Figure 4 , according to the fitting results, α=0.099, β=0.470, namely h=0.099Q 0.470 .

[0...

Embodiment 3

[0131] Take the dynamic sediment transport capacity of the river channel from Aishan to Lijin in the lower reaches of the Yellow River (referred to as the Aili reach) as an example:

[0132] Taking Lijin Hydrological Station as the representative station of this section of the river, collect the water and sediment data of the hydrometric station and the topographical changes of this section of the river. According to the measured flood element data, calculate the corresponding flow rate Q(m 3 / s) under the condition of the measured cross-sectional area and the river width B (m) to calculate the corresponding average water depth h (m) of the representative cross-section, take the flow Q as the abscissa, and take the average water depth h as the ordinate. Fit the power function relation h=αQ representing the average water depth h of the section and the discharge Q β ,See Figure 6 , according to the fitting results, α=0.135, β=0.413, namely h=0.135Q 0.413 .

[0133] The abov...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a riverway dynamic sediment transport capacity calculation method and system. The method comprises the steps of collecting basic data related to a riverway; according to the basic data, calculating the average water depth of the corresponding river cross section under the actual measurement flow condition; fitting a first relational expression of the average water depth of the river cross section and the river flow, and combining a preset formula to obtain a river instantaneous sediment transport capacity expression; defining an introduced flow process non-uniform coefficient, and establishing a riverway dynamic sediment transport capacity calculation method; and acquiring actual measurement data related to river channel erosion and deposition balance, determining required parameters in the riverway dynamic sediment transport capacity calculation method based on the actual measurement data, and outputting and displaying the required parameters. According to the method, the actually-measured water and sediment data and section topographic change conditions of a river hydrological station are collected, the relation between the average water depth and the flowof rivers in different river sections is fitted, the relation is combined with the sediment transport theory, a riverway dynamic sediment transport capacity formula is given, and the method has the advantages of simple steps, reliable results, simple and convenient calculation and easy operation.

Description

technical field [0001] The invention relates to the technical field of engineering sediment, in particular to a method and system for calculating the dynamic sediment transport capacity of a river course. Background technique [0002] The study of river sediment transport capacity is of great significance to river management, and is the key to constructing efficient river sediment discharge channels and ensuring flood safety. The practice of Xiaolangdi water and sediment regulation has proved that the long-duration and large-flow discharge process is conducive to the shaping of the middle water channel of the downstream channel and the erosion of the channel, thus having positive significance for reducing the deposition of the downstream channel and slowing down the development of "secondary suspended rivers". In addition, many studies have shown that narrow and deep channels are conducive to the transport of sediment in the channel, while wide and shallow channels are condu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00G06F17/15
CPCG01M10/00G06F17/15
Inventor 张金良刘继祥罗秋实谢亚光鲁俊陈松伟付健万占伟
Owner YELLOW RIVER ENG CONSULTING