Method and system for remote three-dimensional digital safety early warming for tunnel construction landslide

Abstract

The invention establishes a construction area tunnel excavation three-dimensional strain numerical model based on tunnel construction areal geology reconnaissance documents and an FLAC3D (Fast Lagrangian Analysis of Continua in 3-D) technology, establishes an intelligent displacement back analysis model based on a difference evolution method and establishes a three-dimensional visualization safety early warming platform based on a VTK (Visualization Tool Kit) commercial software system. The method comprises the following steps: acquiring real-time monitoring data of tunnel initial convergence displacement; transmitting the real-time monitoring data to a user computer; analyzing the obtained real-time monitoring displacement data by using the tunnel excavation three-dimensional strain numerical model and the intelligent displacement back analysis model; carry out displacement normal and back analysis by using the difference evolution method; displaying through the visualization safety early warming platform; analyzing and comparing real-time monitoring displacement values with a surrounding rock convergence deformation threshold obtained from the normal and back analysis; and subsequently carrying out graded early warming about the deformation stability of a tunnel supporting structure, wherein the early warming information is transmitted to cell phones of relevant on-site construction and ground management personnel through a short message module connected with a computer through a cell phone short message, so as to accomplish the remote three-dimensional digital safety early warming for tunnel construction landslides.

Description

technical field [0001] The invention belongs to the field of tunnel and underground engineering construction, and is used for safety early warning in the construction process of large-section tunnels such as railway passenger dedicated lines; in particular, it relates to a remote three-dimensional digital safety early warning method for tunnel construction landslides, and the invention also relates to remote three-dimensional digital safety for tunnel construction landslides early warning system. Background technique [0002] Construction safety control of railways, highway tunnels and underground projects is always a difficult problem. Landslides occur frequently during tunnel construction, posing a threat to the safety of construction workers. Therefore, it is of great engineering significance to develop safety monitoring and early warning during tunnel construction. [0003] At home and abroad, there are still few researches on 3D digital safety early warning of tunnel...

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Problems solved by technology

[0003] At home and abroad, there are still few researches on 3D digital safety early warning of tunnel construction. Up to now, there have been no literature reports on 3D digital safety early warning of tunnel construction that integrates 3D strain numerical model of tunnel excavation, intelligent displacement back analysis model and 3D visual safety early warning platform.

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