RFID-based (radio frequency identification) dam foundation deformation monitoring method

A technology of deformation monitoring and dam foundation, applied in the field of measurement and calculation, to ensure safety, avoid dangerous accidents, and achieve remarkable results

Inactive Publication Date: 2014-12-03
CHENGDU RONGDE CONSTR LABOR
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing method can only detect partial dam foundation subsidence, and provide a dam foundation deformation monitoring method based on RFID technology that can timely and effectively understand the uneven subsidence of the overall dam foundation

Method used

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Effect test

Embodiment

[0021] The dam foundation deformation monitoring method based on RFID technology mainly consists of the following steps:

[0022] (1) (1) An RFID electronic tag installation plane is set at every 2-50m in the vertical direction in the dam foundation, and more than two RFID electronic tags are installed on each RFID electronic tag installation plane;

[0023] In this embodiment, the vertical distance between adjacent dam foundation horizontal planes where RFID electronic tags are set is appropriately adjusted according to the dam height, and three RFID electronic tags are set on each dam foundation horizontal plane.

[0024] Among them, when the dam height does not exceed 100m, 3 RFID electronic tags can be installed every 2-8m on the dam foundation level; when the dam height exceeds 100m, 3 RFID electronic tags can be installed every 8-50m on the dam foundation level . The distance between the lowest level of the RFID tag and the level of the top of the dam foundation is 60% ...

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Abstract

The invention discloses an RFID-based (radio frequency identification) dam foundation deformation monitoring method and mainly solves the problem that the existing method is available to detecting part of dam foundation subsidence only. The method mainly includes the steps: 1, RFID electronic tag mounting planes are arranged in a dam foundation at intervals of 2-50m in the vertical direction, and more than two RFID electronic tags are mounted on each RFID electronic tag mounting plane; 2, after the RFID electronic tags are mounted, a reader used with the RFID electronic tags reads initial locations of the RFID electronic tags and records the initial locations inside; 3, after a period of time T, the reader reads post-displacement locations of the RFID electronic tags and records inside; 4, deformation is effectively calculated according to the initial locations and the post-displacement locations recorded in the reader. The method has the advantages such that horizontal and vertical deformations of the dam foundation are detected in real time, dam foundation deformation depth can be effectively monitored, and warning is given out early.

Description

technical field [0001] The invention relates to a measurement and calculation method, in particular to a dam foundation deformation monitoring method based on RFID technology. Background technique [0002] The vertical and horizontal displacement and angular displacement of the dam foundation rock and soil mass under the action of the dam body's own weight and various load combinations. Among them, vertical displacement or subsidence occurs most frequently, mainly due to the compression of pores or fissures in rock and soil mass. Except for rock bodies with weak or fractured structures, the subsidence of dam foundation rock mass is generally small and within its elastic limit, so the impact is not significant. However, since most of the concrete dams built on the rock foundation have relatively high rigidity, they are very sensitive to uneven subsidence. Especially for arch dams, local differences in rock mass deformation within the dam foundation or abutment range may cha...

Claims

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Application Information

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IPC IPC(8): E02D1/08
Inventor 曾德明
Owner CHENGDU RONGDE CONSTR LABOR
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