Study on the measurement and characterization methods of three-dimensional structure of rock surface based on close-range photogrammetry

This article mainly from two aspects of theory and examples of using the method of close shot photogrammetry measurement and characterization of three-dimensional surface of rock mass structure characteristics are analyzed and the research. To change the traditional way of monitoring rock mass, the digital close shot photogrammetry technology applied to practical production operation, implementation of information management of production safety of rock mass materials and experience accumulated.