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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Resultados 1-5 de 73
Página 64
... three to five , or at most six inches in thickness . * Whereas , 9 64 A TREATISE ON ROADS .
... three to five , or at most six inches in thickness . * Whereas , 9 64 A TREATISE ON ROADS .
Página 83
... three or four inches of the surface mould , and hay seeds should be sown on it ; by this plan the slopes will soon be covered with grass , which will be a great means of preventing them from slipping . When stones can be got the slopes ...
... three or four inches of the surface mould , and hay seeds should be sown on it ; by this plan the slopes will soon be covered with grass , which will be a great means of preventing them from slipping . When stones can be got the slopes ...
Página 88
... inches in thickness , to face them with stone . In the Oxford clay , which covers so great a portion of the midland ... three to one , if the cuttings are deep . In all such cases , if any beds of gravel or sand are found intermixed with ...
... inches in thickness , to face them with stone . In the Oxford clay , which covers so great a portion of the midland ... three to one , if the cuttings are deep . In all such cases , if any beds of gravel or sand are found intermixed with ...
Página 90
... inches thick , evenly laid , and closely jointed . " The slopes of the cuttings on the southern sides are to be three horizontal to one perpendi- cular , and those of the northern side to be two horizontal to one perpendicular ; these ...
... inches thick , evenly laid , and closely jointed . " The slopes of the cuttings on the southern sides are to be three horizontal to one perpendi- cular , and those of the northern side to be two horizontal to one perpendicular ; these ...
Página 92
... inches wide at bottom ; the peat dug out of these drains is to be spread ... three feet deep at the centre of the roadway , and four feet deep at the ... inches of clay , laid on evenly , and firmly com- pressed by stampers or rollers ...
... inches wide at bottom ; the peat dug out of these drains is to be spread ... three feet deep at the centre of the roadway , and four feet deep at the ... inches of clay , laid on evenly , and firmly com- pressed by stampers or rollers ...
Índice
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100 | |
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Outras edições - Ver tudo
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1837 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1838 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1833 |
Palavras e frases frequentes
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
Passagens conhecidas
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?