System and method for real-time detection and control of displacement and deformation of foundation pit enclosure

Abstract

The invention discloses a real-time detection and control system and method for displacement and deformation of a foundation pit support body. A data collector collects the inclined angle data, measured by each probe, of each measuring point in a corresponding measuring oblique pipe in the foundation pit support body, and the inclined angle data of each measuring point is sent to a central data processor, the central data processor calculates the displacement data corresponding to each measuring point according to the inclined angle data, coming from the data collector, of each measuring point, thus obtaining the deformation curve of each measuring oblique pipe and the corresponding compensation data of each support point; a D / I conversion instrument converts the compensation data into a current loop signal so as to control the support of a PLC (programmable logic controller) or other industrial controllers for the foundation pit support body and perform ream-time compensation, the aim that the foundation pit support (such as steel support) is subjected to continuous real-time automatic axial force compensation all day long for 24 hours is realized according to the deformation condition, collected in real time, of the measuring oblique pipe, the measuring precision and efficiency are improved compared with those of manual measurement, and the construction quality, efficiency and safety of a foundation pit are improved.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a system and method for real-time detection and control of displacement and deformation of foundation pit enclosures. Background technique [0002] With the development of cities, the scale and excavation depth of foundation pits continue to increase, and the safety of deep foundation pits has become the primary consideration in engineering construction. Because the soil, buildings and buried objects around the excavation of the foundation pit will squeeze the structural wall of the foundation pit enclosure (abbreviated as the foundation pit enclosure, such as the underground continuous wall), resulting in the structural wall of the foundation pit enclosure Therefore, during the construction of the foundation pit, it is necessary to detect the structure wall of the foundation pit enclosure, so that when the deformation of the wall of the foundation pit enclosure s...

AI Technical Summary

Problems solved by technology

This measurement method is easy to operate and widely used. However, due to manual operation, there are large measurement errors, and real-time measurement cannot be realized, and the measurement data cannot be fed back to the real-time compensation control system for wall displacement and deformation of the enclosure structure in real time.

In modern urban construction, these shortcomings have brought hidden dangers to the construction of deep foundation pits. Due to the imperfection of these detection systems, many engineering accidents have been caused.

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