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Water diversion and drainage junction overall flow state model test method for tidal river reach tributary entrance

A technology of overall flow and tributary flow, which is applied in the field of overall flow model test of the tributary outlet and drainage hub of the tidal river section, to achieve the effect of accurate simulation and simplified test conditions

Active Publication Date: 2018-06-01
NANJING HYDRAULIC RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in the physical model simulation method, there is no flow compensation method for the deviation of the main stream flow simulation caused by the tributary drainage and drainage

Method used

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  • Water diversion and drainage junction overall flow state model test method for tidal river reach tributary entrance
  • Water diversion and drainage junction overall flow state model test method for tidal river reach tributary entrance
  • Water diversion and drainage junction overall flow state model test method for tidal river reach tributary entrance

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Embodiment 1

[0033] Jiepai Junction is located at the gate of Xinmeng River, the right branch of Taipingzhou in the Yangzhong River section. The hub enters the Dajia River obliquely as a whole. The angle between the center line of the river channel and the embankment is about 57.8°. The axis of the building is about 700m away from the Yangtze River. figure 1 shown. The Yangzhong River section is located in the changing section of the tidal current, from Wufeng Mountain to the Jiehe Estuary, where runoff is the main function, and there are also ebb and flow tides, so it is a tidal section. Now take the Jiepai water conservancy complex of the Xinmeng River extension and dredging project as an example to illustrate the specific implementation steps of the present invention.

[0034] Step 1. Determine the scale of the physical model:

[0035] Since the water flow at the estuary of the Xinmeng River is affected by the ebb and flow of the Dajiajiang River and the Dajiajiang River is the main co...

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Abstract

The invention relates to a water diversion and drainage junction overall flow state model test method for a tidal river reach tributary entrance. The flow state of the tidal river reach tributary entrance is simulated by adopting a partial river width model, and the deviation between the main stream flow quantity in a physical model and the practical flow quantity caused by the adoption of the partial river width model is reduced through flow quantity compensation. By the adoption of the method, the flow state of the tributary entrance under junction water diversion and drainage conditions canbe simulated accurately, and references and bases are provided for model tests of later similar projects.

Description

technical field [0001] The invention relates to a physical model simulation method, in particular to a model test method for the overall flow state of a tributary outlet and drainage hub of a tidal river section. Background technique [0002] In recent years, there has been an urgent need for inter-basin water diversion and prominent land acquisition issues. Limited by land use conditions, the gate hubs of tributaries in tidal river sections are often located close to the river and openly arranged. It is difficult to coordinate the functions of water diversion, drainage and navigation. To solve relevant technical problems, it is first necessary to correctly understand the overall navigable flow state of the engineering river section through model tests. However, due to the real-time changes in the water level and velocity of the tidal river section, the rising and falling of the tidal current and the asymmetrical duration, combined with the different working conditions of w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/02G01M10/00
CPCE02B1/02G01M10/00
Inventor 陆永军朱昊李寿千莫思平朱明成陆彦刘怀湘王志力左利钦侯庆志樊传浩
Owner NANJING HYDRAULIC RES INST
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