Quick construction method for weak surrounding rock shallowly-buried easily-collapsed area of tunnel

The invention discloses a construction method for railway tunnels, and particularly relates to a construction method for a weak surrounding rock shallowly-buried easily-collapsed area of a tunnel. The method includes steps of advance geological forecast, advance short pipe support, excavating, supporting, grouting after primary support, tunnel lining and secondary grouting. The method is practical and simple in constructional operation, quick in construction progress and high in safety factor, efficacy of mechanical operation can be given to full play, procedure operating time is shortened, construction collapse risks can be effectively lowered, and safety in construction is guaranteed.