In constructing dams, the concrete is poured in lift s of approximately 1.8 m (y₁ = 1.8 m). The forms for the face of the dam are reused from one lift to the next. The figure shows one such form, which is bolted to the already cured concrete. For the new pour, what moment will occur at the base of the form per meter of length (normal to the page)? Assume that concrete acts as a liquid when it is first poured and has a specific weight of 24 kN/m³.

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Cantilevered New pour level form 60 Old pour level Bolts Cured concrete