Composite arch structure
AssigneeArmco Steel Corporation
InventorChristopher L. Fisher
Life of this patent
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Abstract
In a composite arch structure of the type comprising an arched liner with compacted fill material or dense soil thereagainst to form a soil arch thereabout, means and a method to permit controlled settling of the liner so as to achieve load relief on the liner and a soil arch with improved load supporting capabilities. A foundation is provided for the liner comprising yielding footer means. The yielding of the footer means is controlled so that the liner settles at a desired rate relative to the adjacent compacted and consolidated fill material when a predetermined load on the liner is exceeded.
Claims23
In a composite arch structure of the type comprising a liner with compacted fill material thereagainst and thereabout to form a soil arch thereabout, a foundation for said liner comprising yieldable footer means, and means to control the amount and rate of yielding of said footer means whereby said liner will settle at a rate at least equal to the rate of settling of said fill material thereabout.
Dependencies are inferred from the claim text.