Artificial soil structure and method of forming the same
AssigneePanasonic Corporation
InventorsYumi WAKITA, Norihisa MINO, Osamu YAMADA
Life of this patent
Estimating the term…
Abstract
An artificial soil structure includes a water shield layer provided on a soil layer and including water repellent sand processed by water repellent treatment, a water retentive layer provided on the water shield layer and including water retentive sand with no water repellent treatment, and a water repellent soil body provided partially in the water shield layer so as to penetrate the water shield layer and be in contact with the soil layer and the water retentive layer, the soil body including sand processed by water repellent treatment, wherein the water shield layer has water infiltration pressure higher than that of the water repellent soil body.
Claims15
An artificial soil structure comprising:
- a water shield layer provided on a soil layer and including water repellent sand processed by water repellent treatment;
- a water retentive layer provided on the water shield layer and including water retentive sand with no water repellent treatment;
- and
- a water repellent soil body provided partially in the water shield layer so as to penetrate the water shield layer and be in contact with the soil layer and the water retentive layer, the water repellent soil body including sand processed by water repellent treatment;
- wherein
- the water shield layer has water infiltration pressure higher than that of the water repellent soil body.
A method of forming an artificial soil structure, the method comprising:
- providing a cylindrical drain hole mold on a soil layer of a site to form the artificial soil structure;
- forming a water repellent soil body by inserting, into the drain hole mold, sand processed by water repellent treatment so as to be in contact with the soil layer;
- forming a water shield layer by providing sand processed by water repellent treatment outside the drain hole mold so as to have water infiltration pressure higher than that of the water repellent soil body;
- and
- forming a water retentive layer by providing water retentive sand with no water repellent treatment on the water repellent soil body and the water shield layer so as to be in contact with the water repellent soil body.
Dependencies are inferred from the claim text.