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Dam deformation behavior analysis method based on vacuum laser collimation observation systems

An observation system and laser alignment technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of slow measurement speed, difficult dam deformation, narrow coverage, etc., to achieve stable measurement, high-precision measurement, rapid The effect of mastering

Active Publication Date: 2018-03-30
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0002] Deformation monitoring is an important item in the safety monitoring of concrete gravity dams. For a long time, the commonly used monitoring methods include vertical line, tension line, line of sight, static level, etc., but the above monitoring methods generally have narrow coverage, low observation accuracy, Shortcomings such as slow measurement speed make it difficult to accurately and quickly grasp the deformation state of the dam

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  • Dam deformation behavior analysis method based on vacuum laser collimation observation systems
  • Dam deformation behavior analysis method based on vacuum laser collimation observation systems
  • Dam deformation behavior analysis method based on vacuum laser collimation observation systems

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specific Embodiment approach

[0031] The specific embodiment: the present invention will be further described below in conjunction with accompanying drawing:

[0032] Such as figure 1As shown, the present invention provides a method for analyzing the deformation behavior of a dam based on a vacuum laser alignment observation system. The method utilizes a special fixture to arrange the vacuum laser alignment observation system on the dam crest of each dam section, and each dam Arrange a vacuum laser collimation observation system as the observation point. The observation resolution of this system is 0.01mm, and the error in one observation reading is ≤0.1mm. Deformation in different seasons, through the diachronic analysis and statistical model analysis of the accumulated monitoring data, reflect the deformation characteristics of the dam with the growth of life, and provide technical reference for the study of concrete durability and dam service life; another On the one hand, by drawing a one-dimensional ...

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Abstract

The invention provides a dam deformation behavior analysis method based on vacuum laser collimation observation systems. According to the method, a special fixing device is used to set a vacuum lasercollimation observation system at the top of each dam section, the vacuum laser collimation observation system is arranged at each dam section as an observation point, and the system has an observation resolution of 0.01mm and an error smaller than or equal to 0.1 mm in one time of observation reading. With the advantages of high measurement accuracy, a wide range, a high speed, stable system operation and easy maintenance, the application of the vacuum laser collimation observation system in dam deformation observation is gradually matured in recent years and the system is well applied in many projects. According to the vacuum laser collimation observation systems set on the top of a dam, the real-time display of a dam body deformation behavior can be realized by a concrete gravity dam, and the influence of dam body deformation on the safe operation of the dam can be analyzed and evaluated based on monitoring data.

Description

technical field [0001] The invention relates to a method for analyzing the deformation behavior of a dam based on a vacuum laser collimation observation system. Background technique [0002] Deformation monitoring is an important item in the safety monitoring of concrete gravity dams. For a long time, the commonly used monitoring methods include vertical line, tension line, line of sight, static level, etc., but the above monitoring methods generally have narrow coverage, low observation accuracy, Shortcomings such as slow measurement speed make it difficult to accurately and quickly grasp the deformation state of the dam. Therefore, for a dam with a long axis, the distribution state of its horizontal displacement along the axial direction needs a monitoring system with high observation accuracy, fast measurement speed and easy automation. Contents of the invention [0003] Purpose of the invention: The present invention provides a dam deformation behavior analysis method...

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Application Information

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IPC IPC(8): G01B11/16
CPCG01B11/16
Inventor 荆凯常洪军王千黄琢冯雁敏高山张恩博赵航王延廷张庆福刘兴山常亮魏樱王一平刘立东赵丽萍
Owner STATE GRID CORP OF CHINA
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