Abstract:

Taking the selection and application of the matching technologies for the monitoring and measurement of A1 contract section of Xiang'an subsea highway tunnel constructed by means of CRD method as project case, the authors present technologies for the deformation monitoring and regularity analysis of largespanned tunnels constructed by CRD method, which includes the combination of the traditional monitoring and measurement technology and the noncontact monitoring technology, the combination of the ground surface subsidence monitoring technology and the crown settlement monitoring technology, the combination of the surrounding rock mass pressures and steel rib stress monitoring technology and the convergence monitoring technology.