A Treatise on Roads: Wherein the Principles on which Roads Should be Made are Explained and Illustrated, by the Plans, Specifications, and Contracts Made Use of by Thomas Telford, Esq. on the Holyhead RoadLongman, Orme, Brown, Green, and Longmans, 1838 - 465 páginas |
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Página 31
... face of precipices , protected by strong walls . They are acknowledged , by all persons competent to form a correct judgment on works of this kind , to be a model of the most perfect road- making that has ever been attempted in any ...
... face of precipices , protected by strong walls . They are acknowledged , by all persons competent to form a correct judgment on works of this kind , to be a model of the most perfect road- making that has ever been attempted in any ...
Página 58
... face of the country should , in the first instance , be accurately ascertained ; the engineer should make himself as well acquainted with the undulations and the surface of the country as if he had passed his hand over every foot of it ...
... face of the country should , in the first instance , be accurately ascertained ; the engineer should make himself as well acquainted with the undulations and the surface of the country as if he had passed his hand over every foot of it ...
Página 63
... face being as smooth as it can be imagined to be , no road could be worse for traction ; the wheels would sink into the surface , and the tractive force would be continually pulling up a hill ; it would have the effect of a continual ...
... face being as smooth as it can be imagined to be , no road could be worse for traction ; the wheels would sink into the surface , and the tractive force would be continually pulling up a hill ; it would have the effect of a continual ...
Página 71
... face downwards , and the inter- stices are filled with stone chips well driven in , the earthy bed of the road cannot be pressed up so as to be mixed with the coating of broken stones . This coating , therefore , when consolidated ...
... face downwards , and the inter- stices are filled with stone chips well driven in , the earthy bed of the road cannot be pressed up so as to be mixed with the coating of broken stones . This coating , therefore , when consolidated ...
Página 75
... surface a foot or nine inches long , and six or eight inches wide ; it is lessened very much indeed on the sur- face that bears on the earth . " broken stones of great hardness , they should still be PRINCIPLES OF ROAD - MAKING . 75.
... surface a foot or nine inches long , and six or eight inches wide ; it is lessened very much indeed on the sur- face that bears on the earth . " broken stones of great hardness , they should still be PRINCIPLES OF ROAD - MAKING . 75.
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Términos y frases comunes
Allesley arch Archway Road axles bottom breadth brick bridge broken stones built carriage centre coach coating commissioners constructed contract contractor Coventry cross drains DAVIES GILBERT depôts depth draught dynamometer earth eighteen inches elasticity embankments engineer expense experiments feet wide fences foot footpath fore wheels formed foundation four inches friction gravel ground half hard Hartshill height hill hind wheels Holyhead Road horizontal horses improvement inches deep inches thick inches wide instrument John Kershaw John Macneill labour laid length line of road manner masonry ment miles mortar mound necessary nine inches paved pavement placed Plate VII proper quicksets rails rates of inclination repair road-making roadway ruts side channels side springs six inches slopes specification spirit level springs square streets surface surveyor Telford theodolite Thomas Baylis three feet three inches trustees turnpike roads turnpike trusts upper velocity waggon whole wing walls
Pasajes populares
Página 20 - They will here meet with rutts which I actually measured four feet deep, and floating with mud only from a wet summer; what therefore must it be after a winter?