Abstract:

The standardized design of noncontacting tunnel deformation monitoring element is carried out by means of noncontacting and separating methods, so as to realize the standardized construction and management of deformation monitoring element in tunnel and underground projects. The conclusions drawn are as follows: 1) The mentioned element can be circularly used. Pollution of reflector plate, caused by concrete and dust, can be effectively controlled by setting a block on the monitoring side. 2) The integral element is manufactured by stainless steel with good shock proofing, water proofing and corrosion resistant capacity. 3) The monitoring points are stable and the outer length of the anchor meets the monitoring requirements by using anchor agent. 4) The mentioned element is with standardized appearance and is conveniently dismantled. It is fit for the deformation monitoring of tunnel and underground projects. 

Key words: tunnel, noncontacting, deformation monitoring, standardized design