A kind of method and apparatus of automatic measurement tunnel cross-section deformation

The invention discloses a kind of device of automatic measurement tunnel cross-section deformation, including some section measurement rod member and fixed seats；The two ends of the measurement rod member are fixed in tunnel wall by the fixed seat, and connect the broken line profile for forming the tunnel cross-section；Often section measurement rod member is provided with obliquity sensor；The length of the measurement rod member is changed with the deformation of the tunnel cross-section, and displacement transducer is provided with measurement rod member；The length change of rod member is measured by the displacement sensor.The apparatus and method of automatic measurement tunnel cross-section deformation of the present invention；The deformation of tunnel cross-section is adapted to by telescopic measurement rod member；The length change for measuring rod member is measured by displacement transducer；The three-dimensional perspective for measuring rod member is measured by obliquity sensor, the matched curve of tunnel cross-section is obtained according to each section measurement rod member, monitor the deformation of tunnel cross-section.