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Evaluation method for design reasonability and operation period working state of arch dam body

A working state and evaluation method technology, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve problems such as difficulties, difficulties in program analysis and comparison, and no quantitative evaluation, and achieve convenient operation, The effect of evaluating the conclusion is accurate and usable, and the operation is simple

Active Publication Date: 2021-02-23
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For different design schemes, how to evaluate the effectiveness of engineering measures to improve the displacement distribution of the dam body, there is no quantitative evaluation method, and it is difficult to analyze and compare the schemes
For arch dams during the operation period, whether the trend of torsional deformation is stable is very important to evaluate whether the working state of the arch dam is normal, but how to quantitatively evaluate it is also difficult

Method used

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  • Evaluation method for design reasonability and operation period working state of arch dam body
  • Evaluation method for design reasonability and operation period working state of arch dam body
  • Evaluation method for design reasonability and operation period working state of arch dam body

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specific Embodiment

[0050] The solution of the present invention to solve the technical problem is: according to the calculation and analysis results of the arch dam or the displacement results of monitoring, the position of the maximum radial displacement of the dam body at each elevation is fitted as the center line of the radial displacement of the arch dam, and the center line and the vertical line As a quantitative index to characterize the symmetry of arch dam displacement, it is used to evaluate the rationality of arch dam shape design and the working status during operation. The details are as follows.

[0051] (1) Calculate the radial displacement of the node

[0052] There are three ways to obtain the radial displacement of the nodes in the grid, which are the monitoring method, the calculation of the arch beam sharing method, and the calculation of the finite element method.

[0053] 1) Monitoring method

[0054] The most commonly used method for arch dam displacement monitoring is t...

Embodiment 1

[0071] Below in conjunction with the calculation and analysis result of a certain project, the application of the present invention is further described:

[0072] For an extra-high arch dam project, for a certain body shape and dam foundation treatment design scheme, the stress and displacement of the dam body are calculated using the arch-beam load sharing method, and a total of 10 layers of nodes are divided.

[0073] (1) Extract the maximum radial displacement of each elevation of the arch dam

[0074] The radial displacement of each calculation node is shown in Table 1. The radial displacement is positive upstream and negative downstream. According to Table 1, using the comparison method, the maximum radial displacement of each layer node can be obtained as Table 2.

[0075] Table 1 Calculate the radial displacement of the node (cm)

[0076]

[0077]

[0078] Table 2 The maximum radial displacement of nodes in each layer (cm)

[0079] Tier 1 layer 2 ...

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Abstract

The invention discloses an evaluation method, particularly discloses an evaluation method for the design reasonability and the operation period working state of an arch dam body, and belongs to the technical field of water conservancy and water conservancy project building safety evaluation processes. The invention provides the evaluation method for the rationality of the arch dam body design andthe working state in the operation period, which can quantitatively reflect the index of the displacement symmetry of the arch dam and is used for guiding the arch dam body arrangement design and theworking state in the operation period. According to the evaluation method, on the basis of an arch dam calculation and analysis result or a node displacement result monitored in an operation period, the position of the maximum radial displacement of each elevation dam body is fitted into an arch dam radial displacement center line; and the rationality of the arch dam body design and the working state of the operation period is evaluated by taking the included angle between the radial displacement center line and the plumb line of the arch dam as a quantitative index for representing the displacement symmetry of the arch dam.

Description

technical field [0001] The invention relates to an evaluation method, in particular to an evaluation method for the rationality of arch dam shape design and the working state during operation, and belongs to the technical field of water conservancy and water conservancy engineering building safety evaluation technology. Background technique [0002] The arch dam fully utilizes the strength of the dam body material, and can arrange drainage structures on the dam body. It is a dam type with superior economic efficiency. The ideal dam construction conditions for an arch dam are that the dam foundation has good geological conditions, symmetrical topography, and a uniform dam foundation. However, the actual dam foundation conditions often have strong asymmetry. For example, the topographical conditions of the Baihetan arch dam are extremely asymmetrical, and the topographic and geological conditions of the Jinping I arch dam are asymmetrical, which brings great challenges to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F119/14
CPCG06F30/23G06F2119/14
Inventor 张敬刘小强庞明亮张冲贺春晖
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE