Experimental Study on Roadway Deformation Measuring Based on Digital Photogrammetry

Roadway deformation measuring is one of the important contents of coal mine safety monitoring. Digital photogrammetry showed remarkable advantages in measuring roadway deformation with its own characteristics, such as non-contact measurement, fast measurement, little effect on production and so on. This paper researched principle and method of measuring roadway deformation based on digital photogrammetry, and verified the feasibility and effectiveness of the method by experiments.