A Calculation Method of Maximum Development Scale of Waterway Based on River Phase Relationship

A technology of river phase relationship and calculation method, applied in the direction of geometric CAD, special data processing applications, etc., can solve problems such as cumbersome processes, and achieve the effects of credible conclusions, clear physical concepts, and convenient methods

Active Publication Date: 2022-04-01
CHONGQING JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the channel width b is changed due to planning requirements, it is necessary to re-measure the channel water depth under the channel width, and then calibrate the corresponding water depth correction coefficient η. This process is relatively cumbersome

Method used

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  • A Calculation Method of Maximum Development Scale of Waterway Based on River Phase Relationship
  • A Calculation Method of Maximum Development Scale of Waterway Based on River Phase Relationship
  • A Calculation Method of Maximum Development Scale of Waterway Based on River Phase Relationship

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Embodiment 1

[0047] see figure 1 , this embodiment discloses a method for calculating the maximum development scale of a waterway based on river correlation, including the following steps:

[0048] 1) Determine the excellent river section of the natural river course. The excellent river section is a reference model for waterway improvement projects, and it is a section of a natural river that has no obstacles to navigation. The river correlation relationship of the excellent river section is intended to describe the most suitable cross-sectional shape of the river bed after the river has been improved in the natural state.

[0049] 2) It is assumed that the cross-section of the channel after the completion of regulation is similar to the cross-section shape of the excellent river section. Establish the characteristic flow rate (in this embodiment, select the design minimum navigable guaranteed flow rate), and the cross-section of the excellent river section has a correlation relationship...

Embodiment 2

[0073] In this embodiment, the Xuyu-Chongqing section of the upper reaches of the Yangtze River is taken as an example to explore the maximum development scale of the waterway section. see figure 2 The section from Yibin Hejiangmen (upstream waterway mileage 1044km) to Chongqing Jiulongpo (upstream waterway mileage 681km) in the upper reaches of the Yangtze River is referred to as the Xuyu section, with a total length of 363km. The Xuyu section straddles Sichuan and Chongqing, and the water flows from west to east across the southeastern edge of the Sichuan Basin. The riverbed in the interval is mostly composed of bedrock, pebbles or sand mixed with pebbles, and its flow conditions and riverbed are generally stable.

[0074] 1) According to the navigation map of the dry season channel measured by the Yangtze River Waterway Bureau, 739 excellent cross-sections were selected in the section of the Syria-Chongqing section, and the natural river width at the third-level water leve...

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Abstract

The invention provides a method for calculating the maximum development scale of waterways based on river correlation. The method includes the steps of determining the excellent reach of the natural river, establishing the cross-section along-river correlation formula of the excellent reach under the characteristic discharge, establishing the relationship between the elements of the channel section and the scale elements of the channel, and determining the maximum development scale of the researched reach. This method simplifies the cumbersome process of calibrating river correlation coefficients. The physical concept is clear, the method is easy to implement, and the conclusion is credible.

Description

technical field [0001] The invention relates to the technical field of waterway engineering planning, in particular to a method for calculating the maximum development scale of a waterway based on river phase relations. Background technique [0002] In the planning and design of waterway engineering, the maximum scale of river channel development is usually estimated by the steady navigation depth estimation method. This method first extracts the relative parameters of the river under a given discharge, then measures the channel water depth under the specified navigation width and calculates the water depth correction coefficient, and finally calculates the theoretical stable navigation depth value. However, the stable navigation depth method has the following problems when estimating the maximum development scale of the channel: [0003] (1) Extract the river correlation formula The coefficient α and exponent β in , need to measure the average water depth and river width...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13
CPCG06F30/13
Inventor 李文杰杨胜发龙浩杨威王皓胡江肖毅黎琪张先炳
Owner CHONGQING JIAOTONG UNIVERSITY
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