),
weight of a cubic foot of earth, and
weight of a cubic foot of masonry, we first compute
lb., the normal component of the earth thrust on a length of 1 ft. of wall. The normal thrust on the panel is thus
and on the counterfort
),
weight of a cubic foot of earth, and
weight of a cubic foot of masonry, we first compute
lb., the normal component of the earth thrust on a length of 1 ft. of wall. The normal thrust on the panel is thus
and on the counterfort