Remarks on the Present System of Road Making ...

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1823 - Всего страниц: 236
 

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Стр. 199 - Observations thereupon, from time to time, to The House; • HAVE, pursuant to the Orders of The House, examined the matters to them referred; and have agreed to the following REPORT : YOUR Committee...
Стр. 46 - The roads can never be rendered thus perfectly secure, until the following principles be fully understood, admitted, and acted upon: namely, that it is the native soil which really supports the weight of traffic : that while it is preserved in a dry state, it will carry any weight without sinking...
Стр. 111 - No ; — -I should not care whether the substratum was soft or hard; I should rather prefer a soft one to a hard one.' 'You don't mean you would prefer a bog? — If it was not such a bog as would not' allow a man to walk over it, I should prefer it.
Стр. 41 - ... nothing is to be laid on the clean stone on pretence of binding; broken stone will combine by its own angles into a smooth solid surface that cannot be affected by vicissitudes of weather, or displaced by the action of wheels, which will pass over it without a jolt, and consequently without injury...
Стр. 49 - Where the materials of which the road itself is composed, properly selected, prepared, and laid, some of the inconveniences of this system might be avoided; but in the careless way in which this service is generally performed, the road is as open as a sieve to receive water ; which penetrates through the whole mass, is received and retained in the trench, whence the road is liable to give way in all changes of weather.
Стр. 51 - The thickness of such road is immaterial, as to its strength for carrying weight ; this object is already obtained by providing a dry surface, over which the road is to be placed as a covering, or roof, to preserve it in that state : experience having shewn, that if water passes through a road, and fill the native soil, the road, whatever may be its thickness, loses its support, and goes to pieces.
Стр. 49 - ... according to the caprice of the maker, and generally in proportion to the sum of money placed at his disposal. On some new roads, made in Scotland, in the summer of 1819, the thickness exceeded three feet.
Стр. 108 - I consider a road should be as flat as possible with regard to allowing the water to run off it at all, because a carriage ought to stand upright in travelling as much as possible. I have generally made roads 3 in.
Стр. 111 - I should think that ten inches of well consolidated materials is equal to carry any thing.' 'That is, provided the substratum is sound? — No; — I should not care whether the substratum was soft or hard; I should rather prefer a soft one to a hard one.
Стр. 112 - ... a morass, which is so extremely soft that, when you ride in a carriage along the road, you see the water tremble in the ditches on each side; and after there has been a slight frost, the vibration of the water from the carriage on the road will be so great as to break the young ice. That road is partly in the Bristol district. I think there is about seven miles of it, and at the end of those seven miles, we come directly to the limestone rock.

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