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A method for engineering construction deformation monitoring based on free station reduction algorithm

A technology for engineering construction and deformation monitoring, applied in measuring instruments, measuring devices, surveying and navigation, etc., can solve problems such as inability to monitor, improve monitoring efficiency and cost, and reduce the difficulty of monitoring operations

Active Publication Date: 2022-03-29
四川中水成勘院测绘工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The technical problem to be solved by the present invention: in the prior art, when the deformation monitoring of the engineering construction area is carried out by the total station, each monitoring requires the total station to be fixed on the observation pier with forced centering. , it is not possible to monitor

Method used

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  • A method for engineering construction deformation monitoring based on free station reduction algorithm
  • A method for engineering construction deformation monitoring based on free station reduction algorithm
  • A method for engineering construction deformation monitoring based on free station reduction algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] right figure 1 Monitor the construction area shown in , where the dotted line is the largest circumscribing rectangle of the monitoring area, and the internal irregular part of the dotted line is the actual construction area.

[0093] (1) Set up monitoring points inside the construction area, and then build observation piers. Among them, D1, D4, D5, and D9 are known stations, that is, the points where the observation piers are forced to be centered. D2, D3, D6, D7, and D8 within the dotted line range are known stations, and P is a free station.

[0094] (2) Monitor at the mandatory center point on the observation pier of any known site, and obtain the monitoring data of each known site and monitoring point in the standard coordinate system of the total station; the first known site monitoring The data is shown in the table below:

[0095]

[0096] (3) Arrange the total station on the free site, monitor the known sites and monitoring points through the total statio...

Embodiment 2

[0110] The monitoring of the engineering construction site is a long-term work, and each monitoring process needs to monitor the known sites, and use the monitoring data as the key data for conversion. However, it is known that the site is set on the observation pier, and the observation pier will not be displaced or deformed theoretically, but due to the influence of various factors such as the actual terrain, the observation pier may be deformed. Therefore, the present invention also includes the step of verification, that is, the data obtained by each detection will be evaluated for monitoring accuracy. If the accuracy is within the preset range, it means that the observation pier is not deformed, and it can be used as a Helmer. Parameters for special conversion.

[0111] Also include in the step (4) of the present invention the error evaluation to the i+1 free station monitoring data, the method for error evaluation is:

[0112] a1. Obtain the system parameters of the cur...

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Abstract

The invention discloses an engineering construction deformation monitoring method based on a free station setting reduction algorithm, which includes monitoring known stations and monitoring points through a total station to obtain monitoring data of the known stations; arranging a total station on a free station , to obtain the free station monitoring data; convert the free station monitoring data obtained from the free station each time from the free coordinate system to the reduced monitoring data corresponding to the standard coordinate system of the total station; calculate the difference of the reduced monitoring data, and obtain A collection of monitoring data for engineering construction deformation. In the first monitoring, the present invention requires the total station to monitor forcibly. In the subsequent continuous monitoring process, the total station can monitor on the free site, and use the reduced monitoring data as the actual monitoring on the free site. Data results; the method of the invention can greatly reduce the difficulty of monitoring operations, can quickly realize the collection of monitoring data, and generate high-precision monitoring reports.

Description

technical field [0001] The invention relates to the technical field of engineering construction safety monitoring, in particular to an engineering construction deformation monitoring method based on a free station setting reduction algorithm. Background technique [0002] With the increase of urban population density, the phenomenon of traffic congestion is becoming more and more serious. In order to effectively solve the problem of urban travel congestion, major cities are carrying out urban rail transit construction. According to relevant national regulations, during the construction process of the project, it is necessary to monitor and judge the safety status of the construction project. Among them, the deformation state of the construction project is one of the most important monitoring items. Timely judgment of the deformation and subsidence of the construction project is beneficial Ensure the safety of the construction area and its surrounding areas. [0003] The tot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/32G01C15/00G06F30/20G06F17/10
CPCG01B21/32G01C15/00G06F30/20G06F17/10
Inventor 刘光庆樊宽林黄梅琳陈尚云
Owner 四川中水成勘院测绘工程有限责任公司
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