High form temporary support that large -tonnage is adjustable

The utility model relates to a high form temporary support that large -tonnage is adjustable, including deciding the voussoir, move the voussoir, the horizon bar, going up steel sheet, time steel sheet and U -shaped base, the U -shaped base includes bottom plate and two side rib boards, the one side of deciding the voussoir with it connects to go up the steel sheet, one side of moving the voussoirwith the bottom plate is connected, it keeps away from to decide the voussoir the opposite side of going up the steel sheet is equipped with first inclined plane, it keeps away from to move the voussoir the opposite side of bottom plate is equipped with the second inclined plane, first inclined plane with the connection cooperatees on the second inclined plane, decide the voussoir with it is located to move the voussoir in the U -shaped base, it is equipped with first screw hole on the voussoir to move, be equipped with the external screw thread on the girt, first screw hole with outer threadto match closes, the girt