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Method for quickly and automatically analyzing effective water resistance ratio of piers in river channel

An automatic analysis and pier technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low efficiency, high accuracy, skill proficiency, and complicated steps, so as to improve efficiency and accuracy, and realize The effect of automated calculations

Active Publication Date: 2019-08-16
PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the calculation method of the effective water resistance ratio of the bridge pier in the river channel, such as complicated steps, low efficiency, and the accuracy is greatly affected by the skill proficiency of the calculation personnel, and provide a fast and automatic analysis method for the effective water resistance ratio of the bridge piers in the river channel. Realize the automatic calculation of the water resistance ratio of bridge piers in the channel, and improve its efficiency and accuracy

Method used

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  • Method for quickly and automatically analyzing effective water resistance ratio of piers in river channel
  • Method for quickly and automatically analyzing effective water resistance ratio of piers in river channel
  • Method for quickly and automatically analyzing effective water resistance ratio of piers in river channel

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Embodiment

[0067] The effective water resistance ratio analysis is carried out for a bridge design scheme of the Jiaomen South Branch Channel. In this example, there are 2 sets of main piers on both sides of the main channel near the west bank, and 3 sets of side piers in the shoal area near the east bank. All The piers are all arranged in separate upper and lower frames. The plane of the single pier of the main pier is a rectangle with a size of 9.5×14.5m. The plane of the single pier of the side pier is a rounded rectangle with a size of 6×10m. Such as image 3 As shown, set the analysis water level to 0m.

[0068] Such as figure 1 As shown, a kind of rapid automatic analysis method of the effective water resistance ratio of bridge pier in the channel of the present invention specifically comprises the following steps:

[0069] Step S1. Underwater terrain within a certain range (including all piers and possible water-blocking analysis sections) of the shoreline and a certain range o...

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Abstract

The invention discloses a method for quickly and automatically analyzing the effective water resistance ratio of a bridge pier in a river channel, and belongs to the technical field of river dynamicsand hydrodynamic force influence demonstration of wading buildings. The method mainly comprises the following steps: firstly, preprocessing a watercourse shoreline terrain, determining an analysis water level and a reference water passing section, and calculating the total area of the water passing section; secondly, carrying out coordinate transformation by taking the water passing cross sectionas an axis, and projecting the top point of the bridge pier to the water passing cross section; thirdly, calculating the projection area of the bridge pier on the water passing section, calculating the effective water resistance ratio of the bridge pier by combining the total area of the water passing section, and drawing a water resistance section diagram; the method has the advantages that the defects that a method for calculating the effective water resistance ratio of the bridge pier in the river channel is complex in step, low in efficiency, high in accuracy influenced by skill proficiency of calculation personnel and the like are overcome, the method for quickly and automatically analyzing the effective water resistance ratio of the bridge pier in the river channel is provided, automatic calculation of the water resistance ratio of the bridge pier in the river channel is achieved, and efficiency and precision are improved.

Description

technical field [0001] The invention relates to a fast and automatic analysis method for the effective water resistance ratio of bridge piers in a river channel, and belongs to the technical field of river dynamics and hydrodynamic influence demonstration of wading structures. Background technique [0002] With the rapid development of the transportation industry, there are more and more bridge construction projects. These bridge piers in the river channel occupy the cross-section of the river, which has a blocking effect on the water flow. The ratio of the effective area of ​​the cross-section occupied by the bridge piers to the area of ​​the original cross-section is the effective water resistance ratio of the bridge pier. The effective water blocking ratio can quantitatively reflect the resistance of the bridge piers to the flow of water, and can also qualitatively reflect the influence of the bridge piers on the flow dynamics of the river where they are located. It is of...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 杨莉玲杨芳余顺超何用陈文龙徐峰俊
Owner PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
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