It has been a new challenge for the construction of the shallow and long-span tunnel because of shallow depth, complex rock masses and dense earth buildings. However, in order to guarantee the safety and the economics of the project, informationized observation and effective data processing technique are introduced to solve the key topic as a new research thought and method. Aimed at the characteristics of the shallow tunnel, field construction observation was used to get the real-time construction data about blasting and rock deformation. And peak value of point's maximum vibrating velocity was applied to evaluate the blasting effect. The results that implied the stability of the tunnel rock masses indicated that the blasting velocity control was effective and rational. At the same time, variation tendency of the surface settlement, tunnel deformation and crown settlement in the process of the tunnel construction was investigated in detail. The real-time monitoring curve and corresponding frequency graphs of the ground settlement illuminated that ground settlement induced by tunnel construction did not affect the safety of the surrounding buildings. In addition, rock deformation and corresponding convergence rate meeting the code requirement showed the stability of the rock masses and the project safety, especially deformation prediction based on intelligent method named not only reflected the deformation frequency, but also provided a theoretical base for the rock supporting during the tunnel construction. Therefore, the above investigation illuminated that the blasting control and rock support was feasible and reasonable which provided a theoretical base for blasting parameters selection and support system optimization and gave a construction guide for different stages and similar tunnel projects.
