ABSTRACT
Monitoring work plays an important role for safety management during tunnel construction. The observation objects mainly consist of ground deformation, convergence displacement, axial force of rock bolts and so on. It is still insufficient to meet the practical monitoring needs due to the dynamic construction procedure, the deformation characteristics of rock as well as the cost. In this paper, the new concept of “On Site Visualization” is illustrated briefly for construction management. Then, based on this concept, some simple methods are proposed to measure the displacement and visualize the data on real-time during tunnel constructions. By using these methods, the displacement, such as the ground deformation ahead of tunnel face and the convergence displacement, can be monitored and visualized in a mechanical way. In addition, experimental examples for construction practices are introduced and analyzed. Finally, the possibility of using these methods for tunnel monitoring and visualization is discussed.
