Tunnel surrounding rock deformation detection method adopting digital camera technique

Abstract

The invention discloses a tunnel surrounding rock deformation detection method adopting a digital camera technique under the remote control of a computer. The method is characterized by arranging a plurality of observation points on the section of the tunnel surrounding rock, shooting the observation points by utilizing digital imaging equipment, transmitting the acquired images to a monitoring computer by utilizing a wireless network and processing the monitored images by the monitoring computer to obtain the measurement data of surrounding rock deformation. The method has the following advantages: by shooting the plurality of observation points on the section of the tunnel surrounding rock, utilizing research methods such as image enhancement, image pre-processing, image recognition and the like and adopting multistage image processing, the contrast is improved, the target margin is sharpened, and the observation points on the surrounding rock become clearer, thus effectively separating the key recognized targets from the tunnel background and then carrying out coordinate positioning and contrast on the processed images; and measurement and early warning can be carried out on surrounding rock deformation quickly, safely and automatically.

Description

technical field [0001] The invention relates to a method for detecting deformation of tunnel surrounding rock using digital photography technology under computer remote control. Background technique [0002] In recent years, with the rapid development of China's national economy, new railways, highway tunnels, subways and other underground engineering projects are increasing day by day. With the rapid development of underground engineering, more and more attention has been paid to the deformation measurement of the structural system of underground engineering during construction. Tunnel deformation monitoring and measurement is the work of regular observation and measurement of the deformation and stable state of surrounding rock, surface and supporting structure during tunnel construction. It is necessary to ensure project safety, guide design and construction and optimize construction technology. link. The deformation monitoring of the surrounding rock of the tunnel is h...

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Problems solved by technology

Their common disadvantage is that the measurement takes a long time, requires a fixed time and personnel to measure, cannot detect sudden safety hazards in time, and often conflicts with construction operations

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