Importance

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Abstract

An overfilled arch structure includes a spandrel wall that is formed of a plurality of separate segments, each of which is monolithic. The arch structure includes an arch end element having a curb thereon at one end edge, and the segments of the spandrel wall each have a front face that is in abutting contact with the curb and a rear face that is exposed to earth backfill. Vertical support for the segments is provided by the arch end element and the foundation and horizontal support is provided by the curb and the wingwalls. Stabilization is provided by the earth backfill. The lateral segments of the spandrel walls are mirror images of each other and can be formed in a single form. A joining spandrel segment is identical to two lateral segments in edge-to-edge relationship and is used for side-by-side structures. A central segment, like the lateral segments, has at least one arcuate side for snugly abut against the arch element, and can have two arcuate sides.

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First Claim