In ground, rigid pools/structures; located in expansive clay soi

Details In ground, rigid pools/structures; located in expansive clay soi In ground, rigid pools/structures; located in expansive clay soi

1990-10-09

1992-04-21

Taylor, Dennis L.

Hydraulic and earth engineering

Fluid control, treatment, or containment

521695, 4506, 405 43, 405 53, E02B 100

Patent

active

051062291

ABSTRACT:
A rigid type swimming pool or other rigid type structure formed in the ground in which the excavated sides and bottom provides the form for the rigid shell, is subject to increased pressures from the soil, where the surrounding soil is of the expansive clay type. Clay, being of fine soil particles, expands when there is the presence of water, and contracts when there is loss of water. In such a case, flexible, porous expansion material can be placed between the soil and shell to provide room for this movement when the clay soil expands and contracts; due to the variable water percentage present at any given time.

REFERENCES:
patent: 3374491 (1968-03-01), Patin et al.
patent: 3429085 (1969-02-01), Stillman
patent: 3816234 (1974-06-01), Winfield
patent: 4409772 (1983-10-01), Boyack
patent: 4584802 (1986-04-01), Casselman et al.
patent: 4730953 (1988-03-01), Tarko

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