Mountain area high -speed railway tunnel protects bridge open cut tunnel structure

The utility model relates to a mountain area high -speed railway tunnel protects bridge open cut tunnel structure, including protecting the bridge open cut tunnel and rather than the conventional opencut tunnel of intercommunication, the conventional open cut tunnel intercommunication dark hole in tunnel, the basement of conventional open cut tunnel is higher than the basement of protecting the bridge open cut tunnel, protects to be equipped with in the bridge open cut tunnel on pile foundation bearing platform and pile foundation locate the basement rock, and the abutment extends to get intoand protects the bridge open cut tunnel and connect on the cushion cap, and the rail surface line of abutment is neat with the rail surface wire pair of conventional open cut tunnel. Utilize this open cut tunnel structure, the abutment stretches into and protects in the bridge open cut tunnel, the disease avoiding setting up the excavation that the short circuit baseband comes or the fill district that takes place frequen