Method for building three-hole separation side type station based on mechanical method

The invention discloses a method for building a three-hole separation side type station based on a mechanical method, which comprises the following steps of: S01, constructing a shield tunnel by adopting a shield method, and arranging a left line driving area and a right line driving area in the shield tunnel to form a single-hole double-line shield tunnel; s02, two pipe jacking side platform tunnels are constructed on the two sides of the single-hole double-line shield tunnel correspondingly to serve as side platform building spaces; s03, a transverse channel is arranged between the side platform tunnel and the shield tunnel, and a complete platform space is formed; the end part of the transverse channel is provided with a movable door corresponding to the single-hole double-line shield tunnel; s04, station hall layers are constructed on the upper portions of the single-hole double-line shield tunnel and the side platform tunnels through an open excavation or pipe jacking method, and escalator inclined chann