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 |
No interior do livro
Resultados 1-5 de 59
Página 6
... plates , de dix pouces de hauteur , assises les unes sur les autres , et liées par un mortier des plus durs ; pour seconde couche , une épaisseur de huit pouces de petites pierres rondes , plus * French Encyclopædia , article Chemin ...
... plates , de dix pouces de hauteur , assises les unes sur les autres , et liées par un mortier des plus durs ; pour seconde couche , une épaisseur de huit pouces de petites pierres rondes , plus * French Encyclopædia , article Chemin ...
Página 37
... ( Plate I. Fig . 1. ) , and the surveyor , when he arrives at the point a , finds a greater inclination than this , he must incline from the direct line to b . Having then gained the sum- mit of the hill , he does not endeavour to get ...
... ( Plate I. Fig . 1. ) , and the surveyor , when he arrives at the point a , finds a greater inclination than this , he must incline from the direct line to b . Having then gained the sum- mit of the hill , he does not endeavour to get ...
Página 48
... Plate I. Fig . 2. ) . Although this ought to be the general principle , instances may occur , where a valley may be crossed with more advantage down stream ; as , for instance , if the sides of a valley contract considerably , it may ...
... Plate I. Fig . 2. ) . Although this ought to be the general principle , instances may occur , where a valley may be crossed with more advantage down stream ; as , for instance , if the sides of a valley contract considerably , it may ...
Página 49
... Plate I. Fig . 6. , and the Fidlor Burn Bridge , on the Lanark Road , represented in Plate I. Fig . 7. * The suspension bridge over the Menai Straits , in North Wales , is of a similar character , for , besides its use in passing these ...
... Plate I. Fig . 6. , and the Fidlor Burn Bridge , on the Lanark Road , represented in Plate I. Fig . 7. * The suspension bridge over the Menai Straits , in North Wales , is of a similar character , for , besides its use in passing these ...
Página 50
... Plate I. Fig . 8 . In most cases , however , valleys may be crossed by high embankments of earth , such as the chalk hill embankment near Dunstable , and that near Chirk , in North Wales . In some situations it may be advisable to pass ...
... Plate I. Fig . 8 . In most cases , however , valleys may be crossed by high embankments of earth , such as the chalk hill embankment near Dunstable , and that near Chirk , in North Wales . In some situations it may be advisable to pass ...
Índice
235 | |
241 | |
244 | |
251 | |
257 | |
263 | |
272 | |
295 | |
100 | |
118 | |
130 | |
156 | |
167 | |
173 | |
185 | |
187 | |
191 | |
203 | |
209 | |
231 | |
303 | |
310 | |
321 | |
338 | |
348 | |
360 | |
367 | |
385 | |
433 | |
436 | |
451 | |
458 | |
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?