| Rock bolting is an effective tunnel supporting way in geotechnics. This is measured through a scene on the basis of data in a unified manner excavation premise through measurements of data processing. Then a mathematical analysis that the final volume of space deformation. Fast Lagrangian Analysis of continua (FLAC)5.0in employed in modeling deformation of surrounding rock, stress distribution, reasonable rock bolting and its supporting action in tunnel, Than in the same parameters and support the establishment of conditions such as tunnel parameters and support models through theoretical models are models of the final conditions of space deformation, On this basis by changing the models Rock bolting support parameters (mainly referring to the length and quantity), by the same kinds of parameters surrounding rock, the space deformation and the support Rock bolting parameters, and the research results are in a closing agreement with the measured actual data.
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