Abstract:

Based on the objective of safe construction and reasonable operation，the study of three structural aspects：surrounding rock classification，analysis on the stress and displacement，surrounding rock monitor is performed with much attentions to the objects of highway tunnel by achieving the design ideas of rapid，systematic，concise，and user-friendly operations. By utilizing the development tools of Visual Basic，“Macro” command in Office and database platform of Access，the surrounding rock stability appraisal software for highway tunnel is developed with the calculation，monitoring，editing，finite element analysis and other functions，which controls the output of graphics by Mschart control and AutoCad interface. By using of this software in doublearch tunnel in Yumujiang gully，the surrounding rock of right tunnel at K46 +014 is given to be the grade IV，potential damage areas are given to be located in the top and bottom of the tunnel，the final displacement of surrounding rock is given to be 12.055 mm，and the convergence displacement-rate regression curve with time-varying is given.

Key words: tunnels, surrounding rock stability, surrounding rock classification, analysis on the stress and displacement, surrounding rock monitor, software development