Structural Design and Previous Tests for a Retaining Wall Made with Precast Elements of UHPFRC

摘要

An alternative to the initial design made with reinforced concrete is proposed using UHPFRC in order to build a retaining wall located in an aggressive environment. A structural design that aims to take advantages of the specific qualities of the UHPFRC and enables minimize the concrete section is analyzed and justified. The proposed solution consists of vertical prestressed beams designed with a lightened section and fastened to the soil with three levels of anchors. The wall is completed by placing slender curved shells elements between the beams and supported on them. Mechanical test of beam and shell are included as well as an economic valuation and comparison that takes into account both the material production costs and the size reduction advantages in the transport and placement.