Kajima Corporation

Koji Hane

Yasuyuki Hayakawa

Nobuyuki Matsui

Kazuo Okutsu

Hisashi Takamura

Mitsuaki Furuichi

A method of constructing underground galleries using a pneumatic transfer system and a stratum disposal method are provided, wherein in constructing a disposal gallery of a stratum disposal site and tunnels such as mountain tunnels or in performing stratum disposal of waste matter, the carrying-out of excavation chips or the like, the carrying-in of materials and equipment or the like and the carrying-in and positioning of waste matter may be effected safely, quickly and reliably at low cost, and the buffer material quality for waste matter may be secured. In construction, an air carrying pipeline () is used while extending the air carrying pipeline () downward as desired during excavation of a vertical shaft () so as to carry out vertical shaft excavation chips (a) to the ground and carry in materials and equipment including vertical shaft spray concrete (b) to the underground site. Alternatively, the vertical shaft itself is used as the air carrying pipeline (), and by using the air carrying pipeline () extending from the vertical shaft () to an underground gallery (), excavation chips (a) from the underground gallery () are carried out to the ground and materials and equipment for the underground gallery are carried in to the underground site. In operation, the air carrying pipeline () is used to carry in a carrying container () with the waste matter (A) and a buffer material () integrated together and stored therein, to the underground site, and the integrated waste matter (A) and buffer material (B) are positioned and buried in a disposal hole ().

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Tokyo, Japan

Koji Hane