Method and system for remote three-dimensional digital safety early warming for tunnel construction landslide
A safety early warning system, three-dimensional digital technology, applied in the field of remote three-dimensional digital safety early warning of tunnel construction landslide, remote three-dimensional digital safety early warning system of tunnel construction landslide, can solve the problem that there is still little research on three-dimensional digital safety early warning, and improve construction safety sexual effect
Inactive Publication Date: 2012-09-26
CHINA RAILWAY 21TH BUREAU GROUP
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[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 e
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[0020] System example such as figure 1 , figure 2 and image 3 Shown: a remote three-dimensional digital safety warning system for tunnel construction landslides, including several static levels 1, multi-point displacement gauges 15, and also sequentially connected automatic data acquisition instruments 2, GPRS static data acquisition instruments 3, and communication transmitting base stations 9. Commercial satellite 8, communication receiving base station 14, Internet 10 and remote computer 11; several static levels 1 and multi-point displacement gauges 15 are connected to a main connection line, and the main connection line is connected to the input end of the automatic data acquisition instrument 2 connected; the output terminal of the automatic data acquisition instrument 2 is wirelessly connected to the GPRS static data acquisition instrument 3, and the GPRS static data acquisition instrument 3, the communication transmitting base station 14, the commercial satellite 8,...
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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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Inventor 唐述林
Owner CHINA RAILWAY 21TH BUREAU GROUP
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