Tunnel lagging jack corrector, application thereof and construction method of tunnel lagging jack

The invention provides a tunnel lagging jack corrector and application thereof and a construction method of a tunnel lagging jack, and relates to the technical field of tunnel construction.The tunnel lagging jack corrector comprises a length-adjustable supporting rod, a hoop, a circular level and a supporting seat, the hoop is used for being connected with the lagging jack, one end of the length-adjustable supporting rod is connected with the hoop, and the other end of the length-adjustable supporting rod is used for being hinged to the supporting seat; and the circular level is arranged on the hoop. According to the device, the arch center can be corrected, the arch center correction time can be shortened, the circulation speed can be increased, labor force can be saved, the construction cost can be reduced, the safety in the construction process can be improved, and particularly, high-altitude falling and object hitting damage can be prevented. The construction progress of a project is ...