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Precise triangulation elevation monitoring method for vertical displacement of pier in water

A technology of vertical displacement and triangular elevation, which is used in altitude/horizontal measurement, measurement devices, surveying and navigation, etc., can solve the problems of low precision, time-consuming and laborious, and complex surveying process, and achieves the reduction of high errors of measuring instruments, The effect of improving measurement accuracy and simple operation

Inactive Publication Date: 2021-08-31
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

On the one hand, most of the bridge piers in wide waters are located in the water and have a large span, which usually cannot meet the measurement conditions of geometric leveling, and the traditional geometric leveling method is difficult to measure; complicated, time consuming
Triangular elevation measurement can overcome the influence of topography. Among them, the opposite observation method and the middle station method have higher accuracy, but they are easily restricted by the construction environment. When the project is located in areas such as crossing rivers and seas, it is sometimes difficult to measure
Traditional one-way triangulation elevation measurement is less restricted by terrain, but its accuracy is lower, and it is usually used in short-distance observation

Method used

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  • Precise triangulation elevation monitoring method for vertical displacement of pier in water
  • Precise triangulation elevation monitoring method for vertical displacement of pier in water
  • Precise triangulation elevation monitoring method for vertical displacement of pier in water

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Embodiment Construction

[0038] The present invention will be specifically described below in conjunction with the accompanying drawings, and the embodiments of the present invention only reveal the basic idea of ​​the present invention in a schematic manner.

[0039] A precise triangular elevation monitoring method for the vertical displacement of piers in water is illustrated by taking the vertical displacement monitoring of 3# pier of a certain railway bridge as an example. image 3 As shown in the implementation process, the measurement method specifically includes the following steps:

[0040] (1) if figure 1 As shown, the working base point P is selected on the shore survey, and the working base point elevation H P =3.5067m, the observation prism is buried in the 3# pier body;

[0041] (2) if figure 2 As shown, place a linear precision level gauge at the working base point P and level it out, and place and level it at point T at a distance of 4-6m from point P so that the height of the trans...

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Abstract

The invention belongs to the field of engineering measurement, and provides a precise triangulation elevation monitoring method for vertical displacement of a pier in water by accurately measuring the sight height to reduce observation errors. The method comprises the steps: firstly, arranging an observation site according to a site environment; arranging a total station, and measuring the sight height of the total station; and finally, observing monitoring points, and calculating the height difference and the elevation value. Compared with a traditional vertical displacement monitoring method, the method guarantees the measurement precision, and is wider in application range.

Description

technical field [0001] The invention belongs to the field of engineering measurement, and in particular relates to a method for monitoring the vertical displacement of bridge piers in water, which is suitable for monitoring the vertical displacement of bridge piers in water across rivers and seas. Background technique [0002] The vertical displacement of bridge piers is an important means to ensure construction safety and project quality, especially high-speed railways and other projects pay more attention to smoothness, safety and comfort. Therefore, solving the problem of vertical displacement monitoring of bridge piers in water is very important for ensuring project construction and healthy operation. is of great significance. [0003] Although many super-large bridges have been built in China, it is more difficult to monitor the vertical displacement of large railway bridges or bridges built together with highways and railways. On the one hand, most of the bridge piers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 于先文上官学帅闻道秋
Owner SOUTHEAST UNIV
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