Dynamic and static self-adjusting type settlement/deflection monitoring system and method

Abstract

The invention discloses a dynamic and static self-adjusting type settlement / deflection monitoring system, which includes a plurality of detection devices (1) and a collecting system (15), wherein the detection devices (1) include liquid storage barrels (2) and differential transformer type displacement transducers (3); the liquid storage barrels (2) are communicated through a hose (7); the differential transformer type displacement transducers (3) and liquid (10) are arranged in the liquid storage barrels (2); floats (6) connected with the differential transformer type displacement transducers (3) float on the liquid (10); the differential transformer type displacement transducers (3) are connected with a collecting system (15) through a bus; and the detection devices (1) are installed through self-adjusting connection devices (8). The invention further discloses a dynamic and static self-adjusting type settlement / deflection monitoring method. The device and the method provided by theinvention have the advantages that the influence of an inclined to-be-tested object on the testing result is eliminated, errors caused by displacement of a reference is eliminated, the error is small, and the synchronous dynamic and static monitoring can be realized.

Description

technical field [0001] The invention belongs to the technical field of engineering detection, and in particular relates to a dynamic and static self-adjusting settlement / deflection monitoring system and method. Background technique [0002] The settlement / deflection monitoring system has been widely used in engineering inspection fields such as bridges, tunnels, slopes, roadbeds and buildings. [0003] When the measured object is deformed under load, it not only produces longitudinal deformation, but also produces inclination, such as Figure 5 is the liquid state diagram when the liquid storage tank is vertical, Image 6 is the liquid state diagram when the liquid storage tank is tilted. It can be seen that the cross-sectional area of ​​the liquid surface in the liquid storage tank becomes larger when the liquid storage tank is tilted, resulting in a smaller displacement of the liquid surface than when the liquid storage tank is vertical. The settlement / deflection monitori...

AI Technical Summary

Problems solved by technology

[0003] When the measured object is deformed under load, it not only produces longitudinal deformation, but also produces inclination, such as Figure 5 is the liquid state diagram when the liquid storage tank is vertical, Image 6 is the liquid state diagram when the liquid storage tank is tilted. It can be seen that the cross-sectional area of ​​the liquid surface in the liquid storage tank becomes larger when the liquid storage tank is tilted, resulting in a smaller displacement of the liquid surface than when the liquid storage tank is vertical. The settlement / deflection monitoring system cannot eliminate the influence of inclination on the inspection results, resulting in large errors in the inspection results

The existing settlement / deflection monitoring system can only measure the deflection / settlement values ​​of the measured points sequentially through the inspection method. Because the detection time of the measured points is not synchronized, the measured points can only be measured at different time points. The displacement value is compared with the reference displacement value, the accuracy is low and the error is large

The existing settlement / deflection monitoring system selects a point with relatively small deformation on the measured object as the reference point, but after the measured object is loaded, the measured object will deform as a whole, and the position of the reference point is also changing. , which further increases the error of the detection results

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