Construction method for building ground inlet and outlet type shield tunnel

The invention discloses a construction method for building a ground inlet and outlet type shield tunnel. The method comprises but not limited to the following steps in sequence: determining an axis of a tunnel line; arranging a shield initial base and a guide rail on the ground or a shallow buried heading; mounting a shield machine on the guide rail and installing and debugging the shield machine; obliquely pushing a shield into a soil body downwards along the axis of the tunnel line; gradually cutting the soil body through a cutter head; meanwhile, mounting a tunnel lining segment; obliquely pushing the shield out of the soil body upwards along the axis of the tunnel line; entering a shield receiving base which is arranged on the ground or the shallow buried heading in advance; separating the last segment out of the tail of the shield machine to run through a tunnel; arranging waterproof end walls at the end parts of the tunnel in a shield ground initial position and a shield ground receiving position; and covering soil to the waterproof end walls for construction. As the ground shallow buried heading is used instead of a deep and big working well, the engineering construction cost is saved and the building period is reduced. Energy-saving, environment friendly and low carbon building features are implanted to the underground space development field.