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Intelligent monitoring and precise positioning method for full-section differential settlement at road and bridge joint

A differential settlement and intelligent monitoring technology, applied in surveying and navigation, measuring force, measuring devices, etc., can solve problems such as difficult quantification of soil settlement, difficulty in judging the position of soil settlement and empty areas, and facilitates later positioning Effect

Inactive Publication Date: 2022-03-01
SHANDONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art that the soil settlement and the position of the void area under the bridge head strap are difficult to judge, and the soil settlement is difficult to quantify. Monitoring and Precise Positioning Methods

Method used

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  • Intelligent monitoring and precise positioning method for full-section differential settlement at road and bridge joint
  • Intelligent monitoring and precise positioning method for full-section differential settlement at road and bridge joint
  • Intelligent monitoring and precise positioning method for full-section differential settlement at road and bridge joint

Examples

Experimental program
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Effect test

Embodiment 1

[0031] refer to figure 1 , an intelligent monitoring and precise positioning method for full-section differential settlement at road-bridge junctions, comprising the following steps:

[0032] S1. Install the radio frequency card and the displacement sensor, and lay the stress sensing optical fiber;

[0033] S2. Monitor the signal of the radio frequency card, if the signal of the radio frequency card is lost, it means that differential settlement occurs;

[0034] S3. Monitor the pressure on the stress-sensing optical fiber, transmit the monitoring data to the control center, and compare it with the initial data preset by the control center. If the pressure drops, it means that subsidence occurs;

[0035] S4. Monitor the subsidence distance through the displacement sensor, transmit the monitoring data to the control hollow, compare with the preset data, and the data difference is the subsidence distance;

[0036] S5. When subsidence occurs, the controller controls the operatio...

Embodiment 2

[0049] refer to figure 1 , an intelligent monitoring and precise positioning method for full-section differential settlement at road-bridge junctions, comprising the following steps:

[0050] S1. Install the radio frequency card and the displacement sensor, and lay the stress sensing optical fiber;

[0051] S2. Monitor the signal of the radio frequency card, if the signal of the radio frequency card is lost, it means that differential settlement occurs;

[0052] S3. Monitor the pressure on the stress-sensing optical fiber, transmit the monitoring data to the control center, and compare it with the initial data preset by the control center. If the pressure drops, it means that subsidence occurs;

[0053]S4. Monitor the subsidence distance through the displacement sensor, transmit the monitoring data to the control hollow, compare with the preset data, and the data difference is the subsidence distance;

[0054] S5. When subsidence occurs, the controller controls the operation...

Embodiment 3

[0067] refer to figure 1 , an intelligent monitoring and precise positioning method for full-section differential settlement at road-bridge junctions, comprising the following steps:

[0068] S1. Install the radio frequency card and the displacement sensor, and lay the stress sensing optical fiber;

[0069] S2. Monitor the signal of the radio frequency card, if the signal of the radio frequency card is lost, it means that differential settlement occurs;

[0070] S3. Monitor the pressure on the stress-sensing optical fiber, transmit the monitoring data to the control center, and compare it with the initial data preset by the control center. If the pressure drops, it means that subsidence occurs;

[0071] S4. Monitor the subsidence distance through the displacement sensor, transmit the monitoring data to the control hollow, compare with the preset data, and the data difference is the subsidence distance;

[0072] S5. When subsidence occurs, the controller controls the operatio...

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Abstract

The invention belongs to the field of road and bridge monitoring and positioning, particularly relates to an intelligent monitoring and accurate positioning method for full-section differential settlement at a road and bridge joint, and provides the following scheme aiming at the problems that soil settlement and a void area position at the lower part of a bridge end transition slab are difficult to judge and the soil settlement condition is difficult to quantify in the prior art. The method comprises the following steps: S1, installing a radio frequency card and a displacement sensor, and laying a stress sensing optical fiber; s2, monitoring a radio frequency card signal, and if the radio frequency card signal is lost, indicating that differential settlement occurs; s3, monitoring the pressure borne by the stress sensing optical fiber, transmitting monitoring data to a control center, comparing the monitoring data with preset initial data of the control center, and if the pressure is reduced, indicating that subsidence occurs, S4, monitoring the subsidence distance through a displacement sensor, transmitting the monitoring data to the control center, and if the pressure is reduced, indicating that subsidence occurs. The subsidence condition of the soil body at the lower part of the bridge end transition slab can be found in time, and the subsidence condition can be effectively treated and maintained.

Description

technical field [0001] The invention relates to the technical field of road-bridge monitoring and positioning, in particular to an intelligent monitoring and precise positioning method for full-section differential settlement at road-bridge junctions. Background technique [0002] Today, there are road-bridge transitions on every highway. According to statistics, the average number of road-bridge transition sections per kilometer is as high as 3, and some high-speed sections even have as high as 4-5, and the phenomenon of vehicle jumping at the bridge head almost exists on every highway. At present, the installation of bridge head straps in the transitional section of roads and bridges has become the most effective preventive method. However, in real life, there are still many problems in the bridgehead. The most common ones are: with the accumulation of time, there will be differential settlement between the bridge head slab and the abutment to form a wrong abutment; the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/00G01L1/24G01B21/02E02D1/08
CPCG01C5/00G01L1/242G01B21/02E02D1/08
Inventor 崔新壮杜业峰张小宁薛志超齐辉郝建文姜鹏包振昊李向阳路雨牟启硕张圣琦孙玉杰王帅孙华琛
Owner SHANDONG UNIV