Concrete support stress monitoring data processing and optimization method

Abstract

The invention provides a concrete support stress monitoring data processing and optimization method; the method can better represent concrete support stress values, can better comply with engineering real conditions, and can provide more reliable construction basis for construction personnel. The method uses a stress correction value [sigma] to determine whether the concrete support is safe or not; the method considers an elastic modulus E changing with time, a contraction stress microstrain [Epsilon]2 formed by the contraction stress, and a creep stress microstrain [Epsilon]3 formed by the creep stress, thus better reflecting the concrete support truly received stress conditions, and providing more reliable construction basis for the construction personnel.

Description

technical field [0001] The invention belongs to the field of building construction data monitoring, in particular to a method for processing and optimizing concrete support stress monitoring data. Background technique [0002] With the rapid development of urban infrastructure construction, more and more deep foundation pit projects appear in cities. Concrete support is the most important part of foundation pit support structure, and the stress of concrete support is an important basis for evaluating the safety of support structure. Based on this, during the excavation of the foundation pit and the use of the support structure, the important concrete support stress needs to be monitored. [0003] At present, steel bar stress gauges are often used to monitor the stress of concrete supports. The micro-strain of concrete supports is detected by the steel bar stress gauges, and the stress of concrete supports is calculated through the micro-strain and the elastic modulus of con...

AI Technical Summary

Problems solved by technology

[0004] However, in practical engineering applications, since the elastic modulus of concrete will change with time, simply judging whether the support structure is safe by stress will often cause large deviations

It often happens that the stress monitoring value of the concrete support has exceeded the bearing capacity of the component, but the concrete support itself has not been damaged on the surface, which makes engineers and technicians lose their judgment and know what to do

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