Draining, irrigating and aeration of soil and heating or cooling

Details Draining, irrigating and aeration of soil and heating or cooling Draining, irrigating and aeration of soil and heating or cooling

1979-07-23

1982-09-07

Corbin, David H.

Hydraulic and earth engineering

Drainage or irrigation

405131, E02B 1102

Patent

active

043481353

ABSTRACT:
Flexible 1/4 inch diameter plastic tubing is buried horizontally below the surface of the ground. Water or air is forced in the tubing to expand the tubing and make the cavities, that the tubing is in, 1/4 inch in diameter. Then the water or air is sucked out of the tubing so that hollow earth-walled cavities 1/4 inch in diameter are left with the plastic tubing occupying only a small fraction of the volume of the cavities. This produces a system of worm holes over the field that will drain excess water after rains. In drouths irrigation water is introduced through the worm holes. Air is blown in the worm holes to aerate the soil at other times, all of which greatly increase plant growth. By guaranteeing that the ground always will be moist the thermal conductivity of the ground will always be near the maximum around the worm holes. Therefore part of the tunes can always be used to pass water through so the water can be cooled or warmed with the ground being used for a source of heat or cooling efficiently. When the worm hole like cavity for drainage is stopped up by pressure of equipment passing over or other causes the tube is blown up again and then deflated.

REFERENCES:
patent: 390232 (1975-09-01), Watanabe
patent: 3386251 (1968-06-01), Casagrande et al.
patent: 3908385 (1975-09-01), Daniel et al.

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