A New System of Heavy Goods Transport On Common Roads
A New System of Heavy Goods Transport On Common Roads
Bramah Joseph Diplock
The book A New System of Heavy Goods Transport On Common Roads was written by author Bramah Joseph Diplock Here you can read free online of A New System of Heavy Goods Transport On Common Roads book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A New System of Heavy Goods Transport On Common Roads a good or bad book?
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That a wheel in rolling on the road compresses the road by what may be described as a series of infinite gradations, aptly illustrated by the squeezing action of the ordinary mangle. In other words, a road that would be strong enough to support a given weight spread simultaneously over a large area is unable to withstand the pressure which attacks it piece-meal. In Fig. 5 the shaded portion represents the section of a soft road that has been squeezed into a wedge- shaped wave in front of a whee...l. It is clear that the compression of the road particles is greatest at the THE " PEDRA1L. " 33 point A, and therefore that the density of the wedge- shaped wave lessens from A to the point B, where it is theoretically softest. The wheel in rolling, however, commences its attack on the road at this softest point, B, gradually creeping forward inch by inch and mangling it down to the density of A. Compare this with Fig. 3, in FIG. 5. which there is no rolling motion on the road at all, and in which no wedge-shaped waves are possible ; the rolling movement is in the inverted railway at a higher level.
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