Kajima Corporation

Hisashi Takamura

Kazuo Okutsu

Yasuyuki Hayakawa

Nobuyuki Matsui

Mitsuaki Furuichi

Koji Hane

In monitoring a stratum disposal field for wastes, running tubes installed in the vicinity of a gallery or disposal holes, in a nearby rock bed, or within a gallery support or buffer members in the disposal holes have installed therein a movable monitoring device provided with various sensors, a water sampling device and the like. The monitoring device may be movable or fixed in a predetermined position, for measurement of the temperature, displacement, strain, stress and underground water in connection with the rock bed, the gallery support or the disposal space buffer members. Measurement of the clearances in the rock bed, the gallery support back or the disposal space buffer members is monitored. Also, sampling of underground water in the rock bed, the gallery support or the buffer members is effected, thus reducing the number of sensors, drilled holes, communication cables to facilitate the exchange or maintenance of the sensors, communication cables and the like. Further, the data measured by the monitoring device embedded in the buffer member or the like is transmitted by radio to a movable data collecting device in the running tube, or the data measured by the monitoring device is transmitted by radio to a management device disposed on the ground or somewhere else via a relay.

Stratum disposal monitoring system

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

Hisashi Takamura