The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 80
ollowing proposition:— Given the / of inclination of ground, the depth (from field-book, &c.) of ground to the centre of balance or formation level,and tlie ratio of the slopes; to determine where they will meet theground at surface. Let HAFBD (fig. 1) be a vertical section of the ground;A B… … F B Fig. i. I. We will proceed first to determine a formula for O D Let itbe.r; draw DK perpendicular to A B produced ; O/parallel toA B K Let D B be the given slope m base to 1 perpendicular ;draw the vertical B C. Let D/= y; then Oc = FB = 6; ef= my; also by similartriangles, C e ;= m a. .■■Of=b…
Architecture · Civil engineering · Science
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
