Tunnel construction system

(57) Abstract: The (modified with) Objective groundwater and soil generated generated when drilling mud shield machine, shea - processed by each device installed on a carriage that moves according to excavation of shield machine reforming by, and an object thereof is to provide a tunnel construction system that can be used as inverting material forming the tunnel subgrade with the desired soil, and improve efficiency of subgrade formation. [Configuration] on carriage provided to be movable within the tunnel, A mud shield method screen 20 connected via a Haidorokan 7 from the shield machine 1 used in, and waste soil tank 25 for storing the gravel-like material which is separated by a screen, sandy particle-containing separated by a screen a mud receiving tank 19 for storing the mud, and 該泥 water-receiving tub, along with a curing agent tank is mounted and a mud stirring tank 9 which is continuously provided in the mud stirring vessel, mixed stirred at mud stirring tank fluidizing processing material 2 7, Okudoro tube 1 is supplied to the subgrade forming mold within the tunnel 6 is characterized in that it is connected.