Scribner's engineers' and mechanics' companion : comprising United States' weights and measures : mensuration of superficies and solids ... the mechanical powers ... steam and the steam engine (1848)
Scribner, J. M · New York : Huntington and Savage · leaf 149
prevented by thewall. Let a g be the line of rupture or thenatural declivity which the earth wouldassume, were it not for the resistance of thewall. In sandy or loose earth the angle hagjirmer earth it becomes 37°, and in15° It has been found, however, theoretically, and confirmed experi-mentally,… … seldom exceeds 30°, insome favorable cases more than MOTION, 147 Then the resultant,/ n, of the pressure of the bank behind a verticalwall is at a distance, a n, from the bottom of the wall = £ of d a. Of the experimental results, the best which we have seen are thoseof M. Mayniel, from which the…
Mechanical engineering · Weights and measures
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