System and method for tunnel construction safety early warning based on three-dimensional digital tunnel platform

Abstract

The invention relates to a system and a method for tunnel construction safety early warning based on a three-dimensional digital tunnel platform. Based on tunnel construction areal geological data and three-dimensional geographic information principles, areal engineering environmental data of engineering geographic information of stratum lithology, fault distribution, landslide, underground water, harmful gas distribution and the like in construction and influence area ranges are set up on a windows operating platform; and a 'three-dimensional digital tunnel' is constructed based on the FLAC3D (three dimensional fast Lagrangian analysis of continua) technology and the positive and negative analysis theories of rock and soil mechanics. Real-time monitoring data of tunnel stress, deformation and the like under tunneling preliminary and medium-term supporting are acquired. Positive and negative analysis and three-dimensional visual display are performed by means of the 'three-dimensional digital tunnel'. Stress and deformation value which are obtained by actual measurement and stress and deformation threshold which are obtained by positive and negative analysis are compared and analyzed before graded early warning of safety and stability of a tunnel supporting structure. Early warning information is sent to a mobile phone of a construction manager by means of short messages through a 'three-dimensional digital tunnel' and an F2003GSMDTU short message module connected with a computer, and tunnel construction safety early warning is completed.

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 tunnel construction safety early warning method and system based on a "three-dimensional digital tunnel" platform. Background technique [0002] Construction safety control of railways, highway tunnels and underground projects is always a difficult problem. Tunnel landslides, flooding, and gas accidents all occur from time to time, posing a threat to the safety of construction workers. Therefore, it is of great engineering significance to develop a monitoring and early warning system for the safety of this kind of engineering construction process. [0003] There is still little research and development of "digital tunnels" at home and abroad. According to domestic literature, my country's highways, mines...

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Problems solved by technology

[0003]There is still little research and development of "digital tunnels" at home and abroad. According to domestic literature, databases have been constructed for roads, mines, subsea tunnels, and railways (part of the working surface) in China , multi-information early warning and safety management of tunnel construction, but it has not yet been established based on the geological survey data of the tunnel construction area and the principle of three-dimensional geographic information system (referred to as 3D GIS), to establish the formation lithology and fault distribution within the construction and affected area under the windows operating platform , landslide elements and other regional engineering geological body databases containing a lot of engineering geological information and based on Three Dimensional Fast Lagrangian Analysis of Continua (commercial software for computer three-dimensional mechanical modeling, referred to as FLAC3D) technology to build a "three-dimensional digital tunnel" report

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