Reverse construction method for prefabricated column type maintenance pit of rail transit vehicle depot

The invention discloses a rail transit vehicle depot prefabricated column type maintenance pit reverse construction method which comprises the following steps: firstly, carrying out construction preparation and base treatment, drawing a rail distribution diagram, then measuring and arranging a base mark, distributing rail materials, carrying out rail erection and fastener installation, carrying out initial adjustment on a rail, carrying out prefabricated column transportation and installation, and finally carrying out construction. And after the prefabricated columns are installed, steel bar binding and formwork installation are conducted, then the rails and the prefabricated columns are subjected to final adjustment, finally foundation concrete pouring and curing are conducted, and finally construction is completed. The reverse construction method is adopted for construction, meanwhile, the track supporting device is used for assistance, accurate and rapid adjustment of the prefabricated column and the track