Risk management and control system for tunnel construction based on space and time parameters

Abstract

The invention relates to a risk management and control system for tunnel construction based on space and time parameters. The system at least comprises a plurality of ground three-dimensional laser scanning devices and a plurality of data processing modules, wherein the first data processing module is configured to determine a space correlation function between every two continuous tunnel sectionsurfaces in three-dimensional coordinates, and based on the space correlation functions, an imported BIM three-dimensional informatization simulation model is instructed for being corrected, so that aBIM three-dimensional informatization measurement model with a dynamic update of a to-be-constructed tunnel is obtained; the second data processing module is configured to analyze detection values ofdifferent tunnel section surfaces in the space correlation functions and determine a time-varying space correlation function of each tunnel section surface, a time-varying trend of each tunnel section surface is indicated based on the corresponding time-varying space correlation function, surface varying values obtained through calculation are judged according to a preset varying threshold, and automatic early warning is conducted for the tunnel sections with the surface varying values exceeding the preset varying threshold.

Description

technical field [0001] The present invention relates to the technical field of risk assessment of shield tunnels, the technical field of construction engineering prediction, and the technical field of shield tunneling engineering, and in particular to a tunnel construction risk management and control system based on space and time parameters. Background technique [0002] Tunnels and underground projects face great risks during the construction phase. The risks are caused by many aspects, including internal factors and external factors, which are specifically reflected in the structure itself, the surrounding hydrological strata materials, the environmental status and requirements of the surrounding construction, and the construction. technology and operational level etc. [0003] The continuous agglomeration of population to cities has led to a rapid increase in the density of urban population and building area, resulting in less and less available ground space in cities. ...

AI Technical Summary

Problems solved by technology

[0010] The monitoring device provided by the above-mentioned patent is only suitable for the subsequent settlement stage after the passage of the shield tunnel. However, during the advancing process of the shield tunnel, the deformation and stress changes at the initial time after tunnel excavation are relatively fast. The monitoring device provided by this patent is only suitable for The burial measurement can be carried out after the shield passes through, resulting in the initial readings obtained cannot provide accurate reference data for the final displacement and stress prediction in the later stage, which will further lead to error amplification between the follow-up and surface settlement monitoring data, which cannot be realized True real-time monitoring and accurate early warning function

In addition, for the analysis and management of tunnel monitoring and measurement data, most owners and construction units have developed their own monitoring, measurement and early warning information platforms. BIM technology is a new direction of information construction, and it has been applied to the design and construction of tunnels and underground projects, and has been gradually extended to the application of the entire life cycle of tunnels. However, based on The 3D tunnel model in the BIM construction management platform still has the problem of how to view the test data and change curves of the tunnel measurement points in real time on the BIM construction management platform without increasing the workload of technicians entering the monitoring measurement data.

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