A treatise on concrete, plain and reinforced : materials, construction, and design of concrete and reinforced concrete; 2nd ed. . FiG. 216.—Design of T-shaped Retaining Wall. {See p. 669.) erally to , depending upon the inclination of earth pressure, the weightof the fill, and finally upon the ratio between the length of the projecting toeand the total length of the base. The length of base best suited for our ex-ample was found after several trials to be 8 ft. 9 in. The forces acting on the footing are P^, the earth pressure on the plane ab,TV,, the weight of prism of sand, bcde, and W
A treatise on concrete, plain and reinforced : materials, construction, and design of concrete and reinforced concrete; 2nd ed. . FiG. 216.—Design of T-shaped Retaining Wall. {See p. 669.) erally to , depending upon the inclination of earth pressure, the weightof the fill, and finally upon the ratio between the length of the projecting toeand the total length of the base. The length of base best suited for our ex-ample was found after several trials to be 8 ft. 9 in. The forces acting on the footing are P^, the earth pressure on the plane ab,TV,, the weight of prism of sand, bcde, and W2, the weight of the retainingwall itself. The distance from the toe to the line of action of the resultant R 07O A TREATISE ON CONCRETE of VFj and W^ may be obtained as follows: Find center of gravity of earth andcenter of gravity of concrete; multiply the distance from A to these centersof gravity by the respective weight, and thus obtain the statical the sum of these moments by the sum of the weights, W^ + W^, and thelocation of the center of gravity of the combined weight is obtained. Theline of pressure
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