Real-time visual early warning method for risks in construction process of subway station

Abstract

The invention discloses a real-time visualized early warning method for risks in the construction process of a subway station, and the method comprises the steps: collecting deformation monitoring data of a deep foundation pit in the construction process of the subway station through a monitoring module, and uploading the data to a server; establishing a subway station construction process numerical model by using a three-dimensional modeling method based on soil layer parameter data obtained by field investigation; based on a JAYA algorithm, correcting the numerical model of the subway station construction process to meet the actual conditions of construction of different sections; and building a BIM model of subway station construction, dividing the maximum deformation part and the maximum stress part as risk areas, and marking the risk areas in the BIM model by warning. According to the method, the BIM model is utilized to simulate the construction process of each construction condition of the subway station and the deformation condition and the risk area of the enclosure structure in the process, so that the risk visualization of the construction process is achieved, site construction education and risk assessment are facilitated, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the field of engineering construction risk management, in particular to a real-time visual early warning method for risks in the construction process of a subway station. Background technique [0002] With the continuous development of our country's economy, the population in big cities is becoming more and more dense, and the problem of urban land use is becoming more and more tense. In order to solve the contradiction between the increasingly crowded urban population and the increasing urban population. Therefore, the underground rail transit industry has risen rapidly. Urban rail transit construction projects can not only drive investment in fixed assets, but also promote the development of my country's urban rail transit equipment and other advanced technology and equipment industries. At the same time, the large number of subway constructions has led to more and more deep foundation pit projects, and the depth is getting ...

AI Technical Summary

Problems solved by technology

[0004] (1) At the present stage, for the construction of subway stations, the application of BIM technology makes the simulation of the construction process intuitive, which helps to carry out construction education on the construction site and improve construction efficiency. However, the BIM model lacks the construction process of subway stations Forecast of risk areas;

[0005] (2) During the construction process of subway stations, the impact on construction safety is mainly the nature of the soil layer. The existing risk assessment methods for the construction process are mainly analyzed through finite element numerical simulation, and the selection of soil layer parameters is mainly based on laboratory test data. It truly reflects the complex conditions of the site and the transformation of soil stress during the construction of the subway station;

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