Symmetrical closed laser arch dam deformation monitoring method

A technology of deformation monitoring and symmetry, applied in the direction of measuring devices, optical devices, instruments, etc., to achieve the effect of simple structure, easy automation, and high cost performance

Active Publication Date: 2005-06-29
XIAN HUATENG OPTOELECTRONICS
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  • Description
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Problems solved by technology

The above-mentioned existing technologies and methods can basically only detect straight dams, or ca

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  • Symmetrical closed laser arch dam deformation monitoring method
  • Symmetrical closed laser arch dam deformation monitoring method
  • Symmetrical closed laser arch dam deformation monitoring method

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Embodiment Construction

[0018] The method of the present invention divides the arch dam into n sections on the same horizontal plane according to a certain relationship, n=0,1...i-1,i,i+1,i+2,...n, wherein i is Natural number. Establish a coordinate system at the intersection of each straight line segment, and use the round point of the coordinate system as a measuring point platform; and set up a laser transmitter and a laser receiver on each measuring point platform, and the laser transmitter and laser receiver are installed at the origin of the coordinate system , the laser transmitter is used to emit the laser beam, and the laser receiver is used to receive the laser signal of the response deformation of the dam; use the corresponding mathematical model to deduce the relationship between each coordinate system, so as to obtain the parameters of the six-dimensional direction. According to the known coordinates of the endpoints, such as figure 2 The "0" points and "n" points in . Through the sen...

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Abstract

This invention discloses a symmetrical close laser arch dam monitoring method, which comprises the following: to divide an arch dam into several linear sections; to analyze relative displacements between each small section; to get a general arch situation of whole arch dam through a known end; to get absolute displacement and inclination angle of each dam section through math model; to achieve self-adapting correction effect through bi-direction monitoring by use of symmetrical monitoring system and to realize the six-dimension parameter automatic monitoring with high accuracy.

Description

technical field [0001] The invention belongs to a measurement monitoring method, and relates to a deformation monitoring method of an arch dam, in particular to a method for monitoring deformation of a symmetrical closed laser arch dam. Background technique [0002] In the current dam safety monitoring methods, there are many principles and methods used, such as using laser collimation to monitor the vertical and horizontal displacement of corridors and dam crests; using tension line technology to measure changes in dams; precision levels etc. to monitor the settlement of the key and important monitoring parts of the dam; some use the three-point laser dam deformation system in vacuum to monitor the vertical and horizontal displacement of the dam; some use bimetallic tubes to realize real-time monitoring of absolute vertical displacement, that is, settlement . The above-mentioned existing technologies and methods can basically only detect straight dams, or can only monitor ...

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Application Information

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IPC IPC(8): G01B11/16G01B21/32
Inventor 乐开端
Owner XIAN HUATENG OPTOELECTRONICS
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