Method of constructing underground gallery by using pneumatic transfer system and stratum disposal method

A stratum disposal method for disposal of waste matter in a disposal space in an underground gallery, comprising the steps of:

• excavating a vertical shaft or an inclined shaft through the ground to communicate with said underground gallery,
• providing an air carrying pipeline within said shaft at the time of shaft excavation,
• extending said pipeline within said shaft during continued excavation of the shaft,
• providing a carrying container to be pneumatically carried within said pipeline,
• transporting shaft excavation debris from said shaft to ground level by pneumatically carrying said excavation debris placed in said carrying container through said pipeline,
• transporting materials and equipment for use in excavating said shaft by pneumatically carrying said materials and equipment placed in said carrying container through said pipeline,
• whereby said shaft is constructed by repeating the steps of excavating said shaft, extending said pipeline within said shaft and transporting said excavation debris to ground level through said pipeline,
• excavating said underground gallery communicating with said shaft,
• transporting excavation debris from the excavation of said underground gallery to ground level by pneumatically carrying said excavation debris placed in said carrying container through said pipeline,
• transporting materials and equipment to the underground gallery by pneumatically carrying said materials and equipment placed in said carrying container through said pipeline,
• whereby the underground gallery is constructed by repeating the steps of excavating said underground gallery and transporting excavation debris from said underground gallery to ground level through said pipeline,
• disposing said waste matter in a buffer material surrounding the waste matter in an air-tight integrating container at ground level,
• pneumatically carrying said integrating container having said waste matter and buffer material therein through said pipeline to said underground gallery, and
• positioning and burying said integrating container having said waste matter and buffer material therein in said disposal space in said underground gallery.