Please answer all questions A retaining wall is constructed of concrete pillars

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A retaining wall is constructed of concrete pillars with the cross-section shown. The pressure of the earth on the backside of the wall can be represented as a linearly-varying distributed load with an initial value of at the ground, where w e, is the unit weight of earth, hw is the height of the wall, and Ku can De calculated for a given = angle of internal faction (soil-on-soil). according to Ka = tan2(45 degree - /2). Given phi, = 25degree. we = 100 lb/ft3, and the dimensions shown, and assuming the wall is fixed at the ground, what is the maximum normal stress in the wall? A channel made c' concrete [density = 150 lb/ft3) with the cross-section shown is set on top of the wall. What is the normal stress in the wall due to the concrete channel? What is the maximum normal stress in the wall with the pressure of the earth and the concrete channel on top? (Do not consider the weight of the wall itself.) Given the stress-strain curves for a particular kind of concrete, do you recommend using this kind of concrete for the wall?

Explanation / Answer

your dimensions in diagram are not clear enough to deduce something out of that upload it at some place else and post the link

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