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 58
... earth he must know , because it is not after he has begun to make his road that he is to discover the practical difficulties which stand in his way . In fact , it requires a considerable knowledge of geology ; the stratification and the ...
... earth he must know , because it is not after he has begun to make his road that he is to discover the practical difficulties which stand in his way . In fact , it requires a considerable knowledge of geology ; the stratification and the ...
Página 65
... earth upon the elastic soil , to compress it . Although a road , if made with a thick bed of well - broken hard stones laid upon the subsoil , may , no doubt , be , to all appearance , a hard and a good * See Mr. Telford's first Annual ...
... earth upon the elastic soil , to compress it . Although a road , if made with a thick bed of well - broken hard stones laid upon the subsoil , may , no doubt , be , to all appearance , a hard and a good * See Mr. Telford's first Annual ...
Página 66
... earth , ) under the incumbent weight . It is therefore only by proceeding in the way recommended , that is , by proper drainage and pressure , and by making a foundation of large stones in the form of a regular pavement , that this ...
... earth , ) under the incumbent weight . It is therefore only by proceeding in the way recommended , that is , by proper drainage and pressure , and by making a foundation of large stones in the form of a regular pavement , that this ...
Página 69
... earth that is not spongy or elastic , for the bed of the road ; and then he should so dispose the materials of which its crust is to consist , as to form a body sufficiently strong to oppose the greatest possible quantity of resistance ...
... earth that is not spongy or elastic , for the bed of the road ; and then he should so dispose the materials of which its crust is to consist , as to form a body sufficiently strong to oppose the greatest possible quantity of resistance ...
Página 70
... earth a coating of broken stones ; for the car- riages passing over them will force those next the earth into it , and , at the same time , press much of the earth upwards between the stones ; this will take place to a great degree in ...
... earth a coating of broken stones ; for the car- riages passing over them will force those next the earth into it , and , at the same time , press much of the earth upwards between the stones ; this will take place to a great degree in ...
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 - 1833 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1838 |
Palavras e frases frequentes
2d Edition abutments acclivity Allesley arch axle bottom breadth bridge broken stones built carriage centre cloth coach coating commissioners considerable constructed contractor Coventry cross drains depôts depth draught drawing earth eighteen inches elasticity embankments engineer Engravings expense experiments fences foot footpath formed Foster's Booth foundation four inches gravel half hard Hartshill hill hind Holyhead Road horizontal horses improvement inches deep inches thick inches wide J. C. LOUDON John Kershaw labour laid length line of road London masonry materials ment miles necessary nine inches North Wales paved pavement placed Plate posts principle proper quicksets Rates of Inclination repair road-making roadway side channels side springs six inches slopes spirit level Stowe Hill surface surveyor Telford Thomas Baylis three inches tractive TREATISE trustees turnpike roads turnpike trusts velocity Vignette Titles vols waggon weight wheels whole wing walls Woodcuts yards
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