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Slope deformation monitoring method and system based on scanning total station and a GNSS

A technology of deformation monitoring and total station, which is applied in the field of geotechnical engineering, can solve problems such as the inability to monitor slope surface deformation with high precision, and achieve the effect of accurate surface monitoring

Active Publication Date: 2022-01-14
POWERCHINA CHENGDU ENG +1
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Problems solved by technology

[0005] The present invention aims to solve the problem that the existing slope monitoring method cannot perform high-precision surface deformation monitoring on the slope, and proposes a slope deformation monitoring method and system based on scanning total stations and GNSS

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  • Slope deformation monitoring method and system based on scanning total station and a GNSS
  • Slope deformation monitoring method and system based on scanning total station and a GNSS

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Embodiment

[0043] The slope deformation monitoring method based on scanning total station and GNSS described in the embodiment of the present invention, such as figure 1 shown, including the following steps:

[0044] Step 1. Set a plurality of GNSS static receivers at the characteristic positions of the slope to be measured, and set a plurality of scanning position centering observation piles for scanning total stations within the sight range covering the slope to be measured;

[0045] Such as figure 2 As shown, firstly, it is necessary to embed several GNSS static observation receiver observation piers at the first distance D1 in the slope to be monitored, and the GNSS static observation receiver observation piers can also be encrypted and pre-embedded in areas that need to be focused on. Among them, the first distance D1 is determined depending on specific characteristics such as slope undulations, and it is recommended that D1 be no greater than 20m.

[0046] Then, within the line-...

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Abstract

The invention relates to the technical field of geotechnical engineering, discloses a slope deformation monitoring method and system based on a scanning total station and a GNSS, and aims to solve the problem that an existing slope monitoring method cannot perform surface monitoring on a slope, and the scheme mainly comprises the following steps: obtaining earth surface point cloud data and GNSS data of a to-be-monitored slope; obtaining a slope local range deformation direction and a spatial deformation value of a position corresponding to each GNSS static observation receiver according to the GNSS data; performing point cloud difference on the earth surface point cloud data in a preset range of the corresponding position of each GNSS static observation receiver to obtain a slope surface deformation value and a deformation direction of a current period relative to an initial period corresponding to each earth surface point cloud data of the slope to be measured; and drawing a slope surface deformation characteristic graph, and reflecting the slope surface deformation condition of the to-be-detected slope according to the slope surface deformation characteristic graph. According to the invention, respective characteristics of GNSS monitoring and the scanning total station are fused, accurate surface monitoring of the side slope is realized, and the method is especially suitable for the side slope of the reservoir.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a slope deformation monitoring method and system based on a scanning total station and GNSS. Background technique [0002] The stability of the slope in the reservoir area is an important prerequisite for the safe operation of hydropower stations. How to effectively and accurately monitor the unstable slope is a problem that needs to be solved urgently in the monitoring of the slope in the reservoir area. There are many methods for slope displacement monitoring at present. According to different collection methods, it can be divided into two categories: contact measurement method and non-contact measurement method. [0003] GNSS measurement method belongs to contact measurement method, such as patent 202110599693.0. This method is to arrange fixed GNSS antennas at each monitoring point of the slope, and send navigation and positioning signals through GNSS satel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16G01C15/00G01S17/89G01S19/14
CPCG01B11/16G01C15/002G01S19/14G01S17/89Y02A10/23
Inventor 安炯王继敏胡建忠张燕聂强冯永祥张晨李啸啸柳存喜刘健陈锡鑫
Owner POWERCHINA CHENGDU ENG
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