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Expanded equal effect method convergence gauge deformation monitoring method

A deformation monitoring and convergence meter technology, applied in the direction of mechanical solid deformation measurement, etc., can solve the problems of high cost, safety threat, high risk, etc., and achieve the effect of avoiding the interference of construction factors

Inactive Publication Date: 2013-10-09
杨浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention adopts a certain distance from the front and back of the monitoring section to monitor the horizontal displacement or vertical displacement and deformation of the monitoring points arranged on the monitoring section with an extensometer, so as to solve the security threat technical problems and difficulties encountered in the deformation monitoring operation in the tunnel section
The present invention can also solve the problem of high risk and high cost caused by high-altitude operations in the deformation monitoring of large tunnels, and also has the ability to flexibly select long-term use base points near the ground or near the ground to avoid damage during the monitoring period, and at the same time avoid Interference from various construction factors

Method used

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  • Expanded equal effect method convergence gauge deformation monitoring method
  • Expanded equal effect method convergence gauge deformation monitoring method
  • Expanded equal effect method convergence gauge deformation monitoring method

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Experimental program
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Effect test

Embodiment approach 1

[0268] Implementation mode 1: Large-scale construction tunnel geological surrounding rock convergence deformation monitoring

[0269] The present invention can use two methods to measure the distance of the feature edge to the monitoring of the convergence deformation of the geological surrounding rock of the large-scale construction tunnel: one is to use the convergence meter steel ruler completely, such as figure 1 shown; the second is to use only a small part of the extensometer steel ruler, and the other parts use fixed-length steel wires and special hooks, such as figure 2 shown. Because the present invention only cares about the difference Δl between the subsequent monitoring of the characteristic edge and the initial value during the monitoring process, it is sufficient to use a small section of extensometer steel ruler in order to obtain accurate observation readings from the extensometer.

[0270] one. Direct use of extensometer steel ruler (not recommended)

[0...

Embodiment approach 2

[0378] Implementation Mode 2: Deformation Monitoring of Tunnel Floor Uplift

[0379] AB is a vertical line segment, A is located at the top of the tunnel, and B is located at the bottom of the tunnel. Measure the length S of AB directly with an extensometer AB , and with its initial value Compare the amount of change , then use the present invention to measure the vertical displacement y of point A, then the uplift of the base plate is δ AB -y≥0, if the equal sign is established, no uplift of the bottom plate occurs.

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Abstract

The invention aims at expanding and upgrading of an Equal Effect Method Convergence Gauge Deformation Monitoring Method. According to the invention, the horizontal displacement or vertical displacement deformation on monitoring points on a monitoring section is monitored by a convergence gauge in certain distance in front of and behind the monitoring section so as to solve technical problems and difficulties of security threat of deformation monitoring operation in a tunnel section, and to further solve the problems of high danger and high cost in working high above the ground in the deformation monitoring on a large tunnel; furthermore, base points for long-term use are flexibly selected on the ground or near the ground, so that the base points are prevented from being damaged in a monitoring process, and meanwhile, the interference of various construction factors is avoided. The method is particularly applicable to geologic surrounding rock convergence deformation monitoring on large-size tunnels, and is also applicable to deformation monitoring on high slopes and upright and giant buildings or objects and to monitoring under non-height conditions. The invention further proposes a characteristic side forming method which is simple and feasible, so that the monitoring can be carried out safely and conveniently with small investment, only some ordinary steel wires and a telescopic rod as main auxiliary equipment are needed, and moreover, independent operation of one person can be generally realized.

Description

technical field [0001] The invention belongs to a deformation monitoring method using a convergent gauge in the field of engineering measurement. Background technique [0002] The tunnel section is a vertical plane perpendicular to the center line of the tunnel. The deformation monitoring of the tunnel section using the convergent gauge is generally carried out in the tunnel section, and the horizontal displacement or vertical displacement monitoring of the monitoring points arranged on the section is carried out. However, when the top of the tunnel where the section is located has the possibility of falling or collapsing, it will pose a threat to the life of the operator and the safety of production equipment, and if there are a lot of debris on the ground at the bottom of the section, such as a large amount of rubble, machinery piled up, Water gushing from the ground, muddy water, and fault water gushing from the top of the cave near the section or its surroundings will ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/30
Inventor 杨浩
Owner 杨浩
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